---
_id: '63827'
abstract:
- lang: eng
text: Light-emitting diodes (LEDs) are becoming increasingly important across various
sectors of the lighting industry and are being used more frequently. In the field
of symbolic projection, research is increasingly focusing on implementing light
modulation using energy-efficient, incoherent LEDs rather than lasers. Since light
modulation in micro- and nano-optics is typically achieved through phase modulation,
Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The
objective of this article is to investigate different approaches for approximating
incoherent monochromatic light sources within FDTD simulations. To this end, two
approaches based on dipole sources are considered, as well as a method involving
plane waves with modulated wavefronts based on Cosine–Fourier functions and a
method based on the superposition of Gaussian beams. These methods are evaluated
in terms of their accuracy using a two-dimensional double-slit configuration and
are compared against a fully incoherent analytical reference.
article_number: '128'
article_type: original
author:
- first_name: Dominik
full_name: Metzner, Dominik
last_name: Metzner
- first_name: Jens
full_name: Potthoff, Jens
last_name: Potthoff
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Metzner D, Potthoff J, Zentgraf T, Förstner J. Approximating Incoherent Monochromatic
Light Sources in FDTD Simulations. Photonics. 2026;13(2). doi:10.3390/photonics13020128
apa: Metzner, D., Potthoff, J., Zentgraf, T., & Förstner, J. (2026). Approximating
Incoherent Monochromatic Light Sources in FDTD Simulations. Photonics,
13(2), Article 128. https://doi.org/10.3390/photonics13020128
bibtex: '@article{Metzner_Potthoff_Zentgraf_Förstner_2026, title={Approximating
Incoherent Monochromatic Light Sources in FDTD Simulations}, volume={13}, DOI={10.3390/photonics13020128},
number={2128}, journal={Photonics}, publisher={MDPI AG}, author={Metzner, Dominik
and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}, year={2026} }'
chicago: Metzner, Dominik, Jens Potthoff, Thomas Zentgraf, and Jens Förstner. “Approximating
Incoherent Monochromatic Light Sources in FDTD Simulations.” Photonics
13, no. 2 (2026). https://doi.org/10.3390/photonics13020128.
ieee: 'D. Metzner, J. Potthoff, T. Zentgraf, and J. Förstner, “Approximating Incoherent
Monochromatic Light Sources in FDTD Simulations,” Photonics, vol. 13, no.
2, Art. no. 128, 2026, doi: 10.3390/photonics13020128.'
mla: Metzner, Dominik, et al. “Approximating Incoherent Monochromatic Light Sources
in FDTD Simulations.” Photonics, vol. 13, no. 2, 128, MDPI AG, 2026, doi:10.3390/photonics13020128.
short: D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026).
date_created: 2026-02-02T07:18:03Z
date_updated: 2026-02-02T21:38:34Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '61'
doi: 10.3390/photonics13020128
intvolume: ' 13'
issue: '2'
keyword:
- tet_topic_opticalantenna
- tet_topic_numerics
- tet_topic_meta
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2304-6732/13/2/128
oa: '1'
publication: Photonics
publication_identifier:
issn:
- 2304-6732
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Approximating Incoherent Monochromatic Light Sources in FDTD Simulations
type: journal_article
user_id: '158'
volume: 13
year: '2026'
...
---
_id: '64873'
abstract:
- lang: eng
text: Continuous flow catalysis utilizing gel-bound organocatalysts within a microfluidic
reactor represents a compelling strategy in the realm of organic synthesis. In
this study, a quinuclidine-based catalytic monomer (QMA) was synthesized to create
polymer gel dots through the process of photopolymerization that serve as a support
for the catalyst. The resulting gel-bound organocatalysts were assembled within
a continuous microfluidic reactor to facilitate the Baylis–Hillman reaction between
various aldehydes and acrylonitrile at a temperature of 50 °C. The conversion
of the product was assessed using 1H NMR spectroscopy as an offline analytical
method over a duration of 8 h. The findings indicated that highly reactive aldehydes
achieved conversion rates exceeding 90%, in contrast to their less reactive counterparts.
Furthermore, these results were juxtaposed with previously published data derived
from alternative synthetic methodologies, revealing that the continuous microfluidic
reactions employing integrated organocatalysts within polymer networks exhibited
significantly higher conversions with reduced reaction times (8 h) at the same
temperature (50 °C). Additionally, the influence of different geometries (round,
triangular, and square) of the gel dots on catalytic activity was investigated,
with round and square gel dots demonstrating slightly superior performance compared
with triangular gel dots, attributed to their increased surface area. Moreover,
an extended reaction period of 6 days was conducted using 4-bromobenzaldehyde
and acrylonitrile, resulting in a conversion rate exceeding 70%, which remained
stable for 5 days before experiencing a slight decline due to product accumulation
on the gel dots.
article_number: '14448'
article_type: original
author:
- first_name: Naresh
full_name: Killi, Naresh
last_name: Killi
- first_name: Amit
full_name: Kumar, Amit
last_name: Kumar
- first_name: Leena
full_name: Nebhani, Leena
last_name: Nebhani
- first_name: Franziska
full_name: Obst, Franziska
last_name: Obst
- first_name: Andreas
full_name: Richter, Andreas
last_name: Richter
- first_name: Bernhard
full_name: Reineke Matsudo, Bernhard
last_name: Reineke Matsudo
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Dirk
full_name: Kuckling, Dirk
id: '287'
last_name: Kuckling
citation:
ama: Killi N, Kumar A, Nebhani L, et al. Integrating an Organocatalyst into a Polymeric
Gel Framework for the Continuous Microflow Baylis–Hillman Reaction. ACS Omega.
2026;11(9). doi:10.1021/acsomega.5c09476
apa: Killi, N., Kumar, A., Nebhani, L., Obst, F., Richter, A., Reineke Matsudo,
B., Zentgraf, T., & Kuckling, D. (2026). Integrating an Organocatalyst into
a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction.
ACS Omega, 11(9), Article 14448. https://doi.org/10.1021/acsomega.5c09476
bibtex: '@article{Killi_Kumar_Nebhani_Obst_Richter_Reineke Matsudo_Zentgraf_Kuckling_2026,
title={Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous
Microflow Baylis–Hillman Reaction}, volume={11}, DOI={10.1021/acsomega.5c09476},
number={914448}, journal={ACS Omega}, publisher={American Chemical Society (ACS)},
author={Killi, Naresh and Kumar, Amit and Nebhani, Leena and Obst, Franziska and
Richter, Andreas and Reineke Matsudo, Bernhard and Zentgraf, Thomas and Kuckling,
Dirk}, year={2026} }'
chicago: Killi, Naresh, Amit Kumar, Leena Nebhani, Franziska Obst, Andreas Richter,
Bernhard Reineke Matsudo, Thomas Zentgraf, and Dirk Kuckling. “Integrating an
Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman
Reaction.” ACS Omega 11, no. 9 (2026). https://doi.org/10.1021/acsomega.5c09476.
ieee: 'N. Killi et al., “Integrating an Organocatalyst into a Polymeric Gel
Framework for the Continuous Microflow Baylis–Hillman Reaction,” ACS Omega,
vol. 11, no. 9, Art. no. 14448, 2026, doi: 10.1021/acsomega.5c09476.'
mla: Killi, Naresh, et al. “Integrating an Organocatalyst into a Polymeric Gel Framework
for the Continuous Microflow Baylis–Hillman Reaction.” ACS Omega, vol.
11, no. 9, 14448, American Chemical Society (ACS), 2026, doi:10.1021/acsomega.5c09476.
short: N. Killi, A. Kumar, L. Nebhani, F. Obst, A. Richter, B. Reineke Matsudo,
T. Zentgraf, D. Kuckling, ACS Omega 11 (2026).
date_created: 2026-03-10T08:23:43Z
date_updated: 2026-03-10T08:27:15Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '2'
- _id: '311'
doi: 10.1021/acsomega.5c09476
intvolume: ' 11'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://pubs.acs.org/doi/abs/10.1021/acsomega.5c09476
oa: '1'
publication: ACS Omega
publication_identifier:
issn:
- 2470-1343
- 2470-1343
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous
Microflow Baylis–Hillman Reaction
type: journal_article
user_id: '30525'
volume: 11
year: '2026'
...
---
_id: '61523'
abstract:
- lang: eng
text: AbstractMetasurface holography offers a powerful approach
for manipulating wavefronts at the nano and micro scale. Extensive research has
been conducted to enhance the multiplexing capacity for diverse wavefronts. However,
the independence of multiplexed channels is fundamentally restricted in techniques
using single‐layer metasurfaces, resulting in unavoidable crosstalk and the need
for post‐filtering of the output wavefronts. Here, a universal wavefront multiplexing
concept is presented based on non‐injective transformation. By employing joint
optimization on two metasurfaces, different channels can be independently designed
without any constraints on the output wavefronts. To validate this approach, ultra‐compact
orbital angular momentum (OAM) sorters are designed. In these experiments, the
output beams from different channels can be independently mapped to 2D positions
with high fineness. In another application of wavefront‐multiplexed holography,
10‐channel multiplexing is experimentally achieved with minimal crosstalk and
without the need for post‐processing. These results demonstrate the independence
between channels enabled by the non‐injective transformation in the method. The
precise wavefront control and high multiplexing capacity underscore its potential
for scalable wavefront manipulation devices.
article_number: e11823
article_type: original
author:
- first_name: Xiao
full_name: Jin, Xiao
last_name: Jin
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Jin X, Zentgraf T. Independent Wavefront Multiplexing with Metasurfaces via
Non‐Injective Transformation. Advanced Materials. 2026;38. doi:10.1002/adma.202511823
apa: Jin, X., & Zentgraf, T. (2026). Independent Wavefront Multiplexing with
Metasurfaces via Non‐Injective Transformation. Advanced Materials, 38,
Article e11823. https://doi.org/10.1002/adma.202511823
bibtex: '@article{Jin_Zentgraf_2026, title={Independent Wavefront Multiplexing with
Metasurfaces via Non‐Injective Transformation}, volume={38}, DOI={10.1002/adma.202511823},
number={e11823}, journal={Advanced Materials}, publisher={Wiley}, author={Jin,
Xiao and Zentgraf, Thomas}, year={2026} }'
chicago: Jin, Xiao, and Thomas Zentgraf. “Independent Wavefront Multiplexing with
Metasurfaces via Non‐Injective Transformation.” Advanced Materials 38 (2026).
https://doi.org/10.1002/adma.202511823.
ieee: 'X. Jin and T. Zentgraf, “Independent Wavefront Multiplexing with Metasurfaces
via Non‐Injective Transformation,” Advanced Materials, vol. 38, Art. no.
e11823, 2026, doi: 10.1002/adma.202511823.'
mla: Jin, Xiao, and Thomas Zentgraf. “Independent Wavefront Multiplexing with Metasurfaces
via Non‐Injective Transformation.” Advanced Materials, vol. 38, e11823,
Wiley, 2026, doi:10.1002/adma.202511823.
short: X. Jin, T. Zentgraf, Advanced Materials 38 (2026).
date_created: 2025-10-06T05:42:21Z
date_updated: 2026-03-10T08:32:37Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1002/adma.202511823
intvolume: ' 38'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202511823
oa: '1'
project:
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '54'
name: TRR 142 - Project Area A
- _id: '55'
name: TRR 142 - Project Area B
- _id: '65'
name: 'TRR 142; TP A08: Nichtlineare Kopplung von Zwischenschicht-Exzitonen in van
der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten'
- _id: '170'
name: 'TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage
der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen'
publication: Advanced Materials
publication_identifier:
issn:
- 0935-9648
- 1521-4095
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation
type: journal_article
user_id: '30525'
volume: 38
year: '2026'
...
---
_id: '64978'
abstract:
- lang: eng
text: "The degrees of freedom (DoFs) of light determine the maximum number of independent
signal\r\nchannels an optical system can support. However, the polarization DoF
is intrinsically limited to two by\r\northogonality, which causes unavoidable
crosstalk and often forces position multiplexing, where different\r\nchannels
are assigned to distinct spatial locations to suppress crosstalk. This research
introduces a multilayer\r\nsynchronous polarization projection method that fundamentally
increases the DoF for polarization\r\nmultiplexing. The DoF equals twice the number
of projection layers. We experimentally demonstrate six-\r\nchannel polarization
multiplexing holography without position multiplexing. The six-channel multiplexing\r\nresults
indicate that our approach exceeds the conventional polarization multiplexing
method, yielding an\r\naverage 3.79 dB improvement in extinction ratio across
the six channels. Compared with the theoretical\r\nlimit of traditional polarization
multiplexing, our method reduces crosstalk by an average of 6.52 dB across\r\nall
channels in a seven-channel design. The polarization projection method breaks
the DoF limitation\r\nof polarization multiplexing, opening a path toward high-dimensional
photonic information encoding for\r\ncommunication, encryption, and imaging."
article_number: '26010'
article_type: original
author:
- first_name: Xiao
full_name: Jin, Xiao
last_name: Jin
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Jin X, Zentgraf T. Increasing the design degree of freedom for polarization
through multilayer synchronous polarization projection. Advanced Photonics.
2026;8(02). doi:10.1117/1.ap.8.2.026010
apa: Jin, X., & Zentgraf, T. (2026). Increasing the design degree of freedom
for polarization through multilayer synchronous polarization projection. Advanced
Photonics, 8(02), Article 26010. https://doi.org/10.1117/1.ap.8.2.026010
bibtex: '@article{Jin_Zentgraf_2026, title={Increasing the design degree of freedom
for polarization through multilayer synchronous polarization projection}, volume={8},
DOI={10.1117/1.ap.8.2.026010},
number={0226010}, journal={Advanced Photonics}, publisher={SPIE-Intl Soc Optical
Eng}, author={Jin, Xiao and Zentgraf, Thomas}, year={2026} }'
chicago: Jin, Xiao, and Thomas Zentgraf. “Increasing the Design Degree of Freedom
for Polarization through Multilayer Synchronous Polarization Projection.” Advanced
Photonics 8, no. 02 (2026). https://doi.org/10.1117/1.ap.8.2.026010.
ieee: 'X. Jin and T. Zentgraf, “Increasing the design degree of freedom for polarization
through multilayer synchronous polarization projection,” Advanced Photonics,
vol. 8, no. 02, Art. no. 26010, 2026, doi: 10.1117/1.ap.8.2.026010.'
mla: Jin, Xiao, and Thomas Zentgraf. “Increasing the Design Degree of Freedom for
Polarization through Multilayer Synchronous Polarization Projection.” Advanced
Photonics, vol. 8, no. 02, 26010, SPIE-Intl Soc Optical Eng, 2026, doi:10.1117/1.ap.8.2.026010.
short: X. Jin, T. Zentgraf, Advanced Photonics 8 (2026).
date_created: 2026-03-16T07:17:52Z
date_updated: 2026-03-16T07:20:07Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1117/1.ap.8.2.026010
intvolume: ' 8'
issue: '02'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.researching.cn/Articles/OJafd1e3b9e643c6be
oa: '1'
publication: Advanced Photonics
publication_identifier:
issn:
- 2577-5421
publication_status: published
publisher: SPIE-Intl Soc Optical Eng
quality_controlled: '1'
status: public
title: Increasing the design degree of freedom for polarization through multilayer
synchronous polarization projection
type: journal_article
user_id: '30525'
volume: 8
year: '2026'
...
---
_id: '65357'
author:
- first_name: Minjun
full_name: Kim, Minjun
last_name: Kim
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
last_name: Devaraj
- first_name: Hyeon-Seok
full_name: Seo, Hyeon-Seok
last_name: Seo
- first_name: Seongjae
full_name: Eom, Seongjae
last_name: Eom
- first_name: Jeong-Su
full_name: Lee, Jeong-Su
last_name: Lee
- first_name: Donghan
full_name: Lee, Donghan
last_name: Lee
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Jong-Min
full_name: Lee, Jong-Min
last_name: Lee
- first_name: Min Yong
full_name: Jeon, Min Yong
last_name: Jeon
citation:
ama: 'Kim M, Devaraj V, Seo H-S, et al. Fabrication of uniform, high-field-enhanced
plasmonic satellite clusters using multidewetting. In: Razeghi M, Khodaparast
GA, Vitiello MS, eds. Quantum Sensing and Nano Electronics and Photonics XXII.
SPIE; 2026. doi:10.1117/12.3095416'
apa: Kim, M., Devaraj, V., Seo, H.-S., Eom, S., Lee, J.-S., Lee, D., Zentgraf, T.,
Lee, J.-M., & Jeon, M. Y. (2026). Fabrication of uniform, high-field-enhanced
plasmonic satellite clusters using multidewetting. In M. Razeghi, G. A. Khodaparast,
& M. S. Vitiello (Eds.), Quantum Sensing and Nano Electronics and Photonics
XXII. SPIE. https://doi.org/10.1117/12.3095416
bibtex: '@inproceedings{Kim_Devaraj_Seo_Eom_Lee_Lee_Zentgraf_Lee_Jeon_2026, title={Fabrication
of uniform, high-field-enhanced plasmonic satellite clusters using multidewetting},
DOI={10.1117/12.3095416}, booktitle={Quantum
Sensing and Nano Electronics and Photonics XXII}, publisher={SPIE}, author={Kim,
Minjun and Devaraj, Vasanthan and Seo, Hyeon-Seok and Eom, Seongjae and Lee, Jeong-Su
and Lee, Donghan and Zentgraf, Thomas and Lee, Jong-Min and Jeon, Min Yong}, editor={Razeghi,
Manijeh and Khodaparast, Giti A. and Vitiello, Miriam S.}, year={2026} }'
chicago: Kim, Minjun, Vasanthan Devaraj, Hyeon-Seok Seo, Seongjae Eom, Jeong-Su
Lee, Donghan Lee, Thomas Zentgraf, Jong-Min Lee, and Min Yong Jeon. “Fabrication
of Uniform, High-Field-Enhanced Plasmonic Satellite Clusters Using Multidewetting.”
In Quantum Sensing and Nano Electronics and Photonics XXII, edited by Manijeh
Razeghi, Giti A. Khodaparast, and Miriam S. Vitiello. SPIE, 2026. https://doi.org/10.1117/12.3095416.
ieee: 'M. Kim et al., “Fabrication of uniform, high-field-enhanced plasmonic
satellite clusters using multidewetting,” in Quantum Sensing and Nano Electronics
and Photonics XXII, 2026, doi: 10.1117/12.3095416.'
mla: Kim, Minjun, et al. “Fabrication of Uniform, High-Field-Enhanced Plasmonic
Satellite Clusters Using Multidewetting.” Quantum Sensing and Nano Electronics
and Photonics XXII, edited by Manijeh Razeghi et al., SPIE, 2026, doi:10.1117/12.3095416.
short: 'M. Kim, V. Devaraj, H.-S. Seo, S. Eom, J.-S. Lee, D. Lee, T. Zentgraf, J.-M.
Lee, M.Y. Jeon, in: M. Razeghi, G.A. Khodaparast, M.S. Vitiello (Eds.), Quantum
Sensing and Nano Electronics and Photonics XXII, SPIE, 2026.'
date_created: 2026-04-07T04:29:28Z
date_updated: 2026-04-07T04:30:07Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1117/12.3095416
editor:
- first_name: Manijeh
full_name: Razeghi, Manijeh
last_name: Razeghi
- first_name: Giti A.
full_name: Khodaparast, Giti A.
last_name: Khodaparast
- first_name: Miriam S.
full_name: Vitiello, Miriam S.
last_name: Vitiello
language:
- iso: eng
publication: Quantum Sensing and Nano Electronics and Photonics XXII
publication_status: published
publisher: SPIE
status: public
title: Fabrication of uniform, high-field-enhanced plasmonic satellite clusters using
multidewetting
type: conference
user_id: '30525'
year: '2026'
...
---
_id: '65460'
abstract:
- lang: eng
text: "Beamsplitters represent fundamental components in both classical and quantum
optical systems, enabling the distribution of light, as well as the generation
of interference, superposition, and entanglement. However, optical networks constructed
from conventional bulk 2 × 2-beamsplitters encounter inherent scalability issues,
as the number of required beamsplitters scales quadratically with the number of
optical modes for a fully connected network. Metasurfaces offer a promising route
to\r\novercome these constraints. By manipulating light at the wavelength scale,
compact optical components with advanced functionalities can be constructed, which
address several modes simultaneously. In this work, we design and experimentally
utilize a metasurface as a multiport beamsplitter. Furthermore, we realized a
multimode interferometer composed of two cascaded metasurfaces. We characterize
the individual and cascaded metasurfaces by using classical light, showing controllable
splitting ratios through tunable phase relations. We then expand the approach
to quantum light, employing single photons to demonstrate second- and third-order
photon correlations as well as single photon interference across multiple spatial
paths. These results establish metasurface-based multiport beamsplitters as a
scalable and reconfigurable platform bridging classical and quantum photonics. "
article_number: acsphotonics.6c00096
article_type: original
author:
- first_name: Rebecca
full_name: Aschwanden, Rebecca
last_name: Aschwanden
- first_name: Nicolás
full_name: Claro-Rodríguez, Nicolás
last_name: Claro-Rodríguez
- first_name: Ruizhe
full_name: Zhao, Ruizhe
last_name: Zhao
- first_name: Patricia Anna Maria
full_name: Kallert, Patricia Anna Maria
id: '72332'
last_name: Kallert
orcid: 0009-0007-5230-0223
- first_name: Tobias
full_name: Krieger, Tobias
last_name: Krieger
- first_name: Quirin
full_name: Buchinger, Quirin
last_name: Buchinger
- first_name: Saimon F.
full_name: Covre da Silva, Saimon F.
last_name: Covre da Silva
- first_name: Sandra
full_name: Stroj, Sandra
last_name: Stroj
- first_name: Michele
full_name: Rota, Michele
last_name: Rota
- first_name: Sven
full_name: Höfling, Sven
last_name: Höfling
- first_name: Tobias
full_name: Huber-Loyola, Tobias
last_name: Huber-Loyola
- first_name: Armando
full_name: Rastelli, Armando
last_name: Rastelli
- first_name: Rinaldo
full_name: Trotta, Rinaldo
last_name: Trotta
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Aschwanden R, Claro-Rodríguez N, Zhao R, et al. Cascaded Metasurface Interferometer
for Multipath Interference with Classical and Quantum Light. ACS Photonics.
Published online 2026. doi:10.1021/acsphotonics.6c00096
apa: Aschwanden, R., Claro-Rodríguez, N., Zhao, R., Kallert, P. A. M., Krieger,
T., Buchinger, Q., Covre da Silva, S. F., Stroj, S., Rota, M., Höfling, S., Huber-Loyola,
T., Rastelli, A., Trotta, R., Huang, L., Bartley, T., Jöns, K., & Zentgraf,
T. (2026). Cascaded Metasurface Interferometer for Multipath Interference with
Classical and Quantum Light. ACS Photonics, Article acsphotonics.6c00096.
https://doi.org/10.1021/acsphotonics.6c00096
bibtex: '@article{Aschwanden_Claro-Rodríguez_Zhao_Kallert_Krieger_Buchinger_Covre
da Silva_Stroj_Rota_Höfling_et al._2026, title={Cascaded Metasurface Interferometer
for Multipath Interference with Classical and Quantum Light}, DOI={10.1021/acsphotonics.6c00096},
number={acsphotonics.6c00096}, journal={ACS Photonics}, publisher={American Chemical
Society (ACS)}, author={Aschwanden, Rebecca and Claro-Rodríguez, Nicolás and Zhao,
Ruizhe and Kallert, Patricia Anna Maria and Krieger, Tobias and Buchinger, Quirin
and Covre da Silva, Saimon F. and Stroj, Sandra and Rota, Michele and Höfling,
Sven and et al.}, year={2026} }'
chicago: Aschwanden, Rebecca, Nicolás Claro-Rodríguez, Ruizhe Zhao, Patricia Anna
Maria Kallert, Tobias Krieger, Quirin Buchinger, Saimon F. Covre da Silva, et
al. “Cascaded Metasurface Interferometer for Multipath Interference with Classical
and Quantum Light.” ACS Photonics, 2026. https://doi.org/10.1021/acsphotonics.6c00096.
ieee: 'R. Aschwanden et al., “Cascaded Metasurface Interferometer for Multipath
Interference with Classical and Quantum Light,” ACS Photonics, Art. no.
acsphotonics.6c00096, 2026, doi: 10.1021/acsphotonics.6c00096.'
mla: Aschwanden, Rebecca, et al. “Cascaded Metasurface Interferometer for Multipath
Interference with Classical and Quantum Light.” ACS Photonics, acsphotonics.6c00096,
American Chemical Society (ACS), 2026, doi:10.1021/acsphotonics.6c00096.
short: R. Aschwanden, N. Claro-Rodríguez, R. Zhao, P.A.M. Kallert, T. Krieger, Q.
Buchinger, S.F. Covre da Silva, S. Stroj, M. Rota, S. Höfling, T. Huber-Loyola,
A. Rastelli, R. Trotta, L. Huang, T. Bartley, K. Jöns, T. Zentgraf, ACS Photonics
(2026).
date_created: 2026-04-20T04:52:59Z
date_updated: 2026-04-20T05:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acsphotonics.6c00096
external_id:
arxiv:
- '2603.25090'
keyword:
- metasurface
- beamsplitter
- interferometer
- quantum network
- single photons
- nanophotonics
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/10.1021/acsphotonics.6c00096
project:
- _id: '54'
name: TRR 142 - Project Area A
- _id: '65'
name: 'TRR 142; TP A08: Nichtlineare Kopplung von Zwischenschicht-Exzitonen in van
der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: ACS Photonics
publication_identifier:
issn:
- 2330-4022
- 2330-4022
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Cascaded Metasurface Interferometer for Multipath Interference with Classical
and Quantum Light
type: journal_article
user_id: '30525'
year: '2026'
...
---
_id: '65316'
abstract:
- lang: eng
text: Metasurfaces are powerful tools for manipulating light using small structures
on the nanoscale. In most metasurfaces, near-field couplings are treated as being
unfavorable perturbations. Here, we experimentally investigate a structure consisting
of sinusoidally modulated silicon waveguides where near-field coupling of local
resonances leads to negative coupling, i.e., a negative coupling constant. This
gives rise to wave-vector-dependent eigenstates of elliptical, linear, and circular
polarizations. In particular, fully circular polarization states are not only
present at a single point in momentum space (k-space) but also along a line. This
circular polarization line, as well as a linear polarization line, emanates from
a polarization degeneracy at the Dirac point. We experimentally validate the existence
of these eigenstates and demonstrate the energy-, polarization-, and wave vector
dependence of this metasurface as well as its sensitivity to fabrication tolerances.
By tuning the incident k-vector, certain polarization-energy eigenstates are strongly
reflected, allowing for uses in angle-tunable polarization filters and light sources.
author:
- first_name: Helene
full_name: Wetter, Helene
last_name: Wetter
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: Falk
full_name: Rehberg, Falk
last_name: Rehberg
- first_name: Wenlong
full_name: Gao, Wenlong
last_name: Gao
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Wetter H, Wingenbach J, Rehberg F, Gao W, Schumacher S, Zentgraf T. Polarization-
and Wave-Vector Selective Optical Metasurface with Near-Field Coupling. ACS
Photonics. 2026;13:2128-2133. doi:10.1021/acsphotonics.5c02865
apa: Wetter, H., Wingenbach, J., Rehberg, F., Gao, W., Schumacher, S., & Zentgraf,
T. (2026). Polarization- and Wave-Vector Selective Optical Metasurface with Near-Field
Coupling. ACS Photonics, 13, 2128–2133. https://doi.org/10.1021/acsphotonics.5c02865
bibtex: '@article{Wetter_Wingenbach_Rehberg_Gao_Schumacher_Zentgraf_2026, title={Polarization-
and Wave-Vector Selective Optical Metasurface with Near-Field Coupling}, volume={13},
DOI={10.1021/acsphotonics.5c02865},
journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Wetter,
Helene and Wingenbach, Jan and Rehberg, Falk and Gao, Wenlong and Schumacher,
Stefan and Zentgraf, Thomas}, year={2026}, pages={2128–2133} }'
chicago: 'Wetter, Helene, Jan Wingenbach, Falk Rehberg, Wenlong Gao, Stefan Schumacher,
and Thomas Zentgraf. “Polarization- and Wave-Vector Selective Optical Metasurface
with Near-Field Coupling.” ACS Photonics 13 (2026): 2128–33. https://doi.org/10.1021/acsphotonics.5c02865.'
ieee: 'H. Wetter, J. Wingenbach, F. Rehberg, W. Gao, S. Schumacher, and T. Zentgraf,
“Polarization- and Wave-Vector Selective Optical Metasurface with Near-Field Coupling,”
ACS Photonics, vol. 13, pp. 2128–2133, 2026, doi: 10.1021/acsphotonics.5c02865.'
mla: Wetter, Helene, et al. “Polarization- and Wave-Vector Selective Optical Metasurface
with Near-Field Coupling.” ACS Photonics, vol. 13, American Chemical Society
(ACS), 2026, pp. 2128–33, doi:10.1021/acsphotonics.5c02865.
short: H. Wetter, J. Wingenbach, F. Rehberg, W. Gao, S. Schumacher, T. Zentgraf,
ACS Photonics 13 (2026) 2128–2133.
date_created: 2026-04-02T07:25:30Z
date_updated: 2026-04-20T05:09:57Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acsphotonics.5c02865
external_id:
arxiv:
- '2512.14452'
intvolume: ' 13'
keyword:
- metasurface
- waveguides
- Dirac point
- polarization
- negative coupling
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/10.1021/acsphotonics.5c02865
page: 2128-2133
publication: ACS Photonics
publication_identifier:
issn:
- 2330-4022
- 2330-4022
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Polarization- and Wave-Vector Selective Optical Metasurface with Near-Field
Coupling
type: journal_article
user_id: '30525'
volume: 13
year: '2026'
...
---
_id: '65655'
abstract:
- lang: eng
text: A functionalization-free plasmonic nanogap platform enables reliable on-site
SERS based oxidation-state differentiation of arsenic through uniform metal-vacuum-metal
cavities with high electromagnetic enhancement and minimal background interference.
article_type: original
author:
- first_name: Minjun
full_name: Kim, Minjun
last_name: Kim
- first_name: Damun
full_name: Heo, Damun
last_name: Heo
- first_name: Sung Yoon
full_name: Cho, Sung Yoon
last_name: Cho
- first_name: Ye-Won
full_name: Lee, Ye-Won
last_name: Lee
- first_name: Sun-Hwa
full_name: Gu, Sun-Hwa
last_name: Gu
- first_name: Samir
full_name: Adhikari, Samir
last_name: Adhikari
- first_name: Donghan
full_name: Lee, Donghan
last_name: Lee
- first_name: Seok Soon
full_name: Jeong, Seok Soon
last_name: Jeong
- first_name: Hyuck Soo
full_name: Kim, Hyuck Soo
last_name: Kim
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
last_name: Devaraj
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Min Yong
full_name: Jeon, Min Yong
last_name: Jeon
- first_name: Jong-Min
full_name: Lee, Jong-Min
last_name: Lee
citation:
ama: Kim M, Heo D, Cho SY, et al. A functionalization-free plasmonic hole-sphere
nanogap SERS platform for reliable on-site analysis and oxide-state classification.
Nanoscale. 2026;18(8):4292-4299. doi:10.1039/d5nr03414k
apa: Kim, M., Heo, D., Cho, S. Y., Lee, Y.-W., Gu, S.-H., Adhikari, S., Lee, D.,
Jeong, S. S., Kim, H. S., Devaraj, V., Zentgraf, T., Jeon, M. Y., & Lee, J.-M.
(2026). A functionalization-free plasmonic hole-sphere nanogap SERS platform for
reliable on-site analysis and oxide-state classification. Nanoscale, 18(8),
4292–4299. https://doi.org/10.1039/d5nr03414k
bibtex: '@article{Kim_Heo_Cho_Lee_Gu_Adhikari_Lee_Jeong_Kim_Devaraj_et al._2026,
title={A functionalization-free plasmonic hole-sphere nanogap SERS platform for
reliable on-site analysis and oxide-state classification}, volume={18}, DOI={10.1039/d5nr03414k}, number={8},
journal={Nanoscale}, publisher={Royal Society of Chemistry (RSC)}, author={Kim,
Minjun and Heo, Damun and Cho, Sung Yoon and Lee, Ye-Won and Gu, Sun-Hwa and Adhikari,
Samir and Lee, Donghan and Jeong, Seok Soon and Kim, Hyuck Soo and Devaraj, Vasanthan
and et al.}, year={2026}, pages={4292–4299} }'
chicago: 'Kim, Minjun, Damun Heo, Sung Yoon Cho, Ye-Won Lee, Sun-Hwa Gu, Samir Adhikari,
Donghan Lee, et al. “A Functionalization-Free Plasmonic Hole-Sphere Nanogap SERS
Platform for Reliable on-Site Analysis and Oxide-State Classification.” Nanoscale
18, no. 8 (2026): 4292–99. https://doi.org/10.1039/d5nr03414k.'
ieee: 'M. Kim et al., “A functionalization-free plasmonic hole-sphere nanogap
SERS platform for reliable on-site analysis and oxide-state classification,” Nanoscale,
vol. 18, no. 8, pp. 4292–4299, 2026, doi: 10.1039/d5nr03414k.'
mla: Kim, Minjun, et al. “A Functionalization-Free Plasmonic Hole-Sphere Nanogap
SERS Platform for Reliable on-Site Analysis and Oxide-State Classification.” Nanoscale,
vol. 18, no. 8, Royal Society of Chemistry (RSC), 2026, pp. 4292–99, doi:10.1039/d5nr03414k.
short: M. Kim, D. Heo, S.Y. Cho, Y.-W. Lee, S.-H. Gu, S. Adhikari, D. Lee, S.S.
Jeong, H.S. Kim, V. Devaraj, T. Zentgraf, M.Y. Jeon, J.-M. Lee, Nanoscale 18 (2026)
4292–4299.
date_created: 2026-05-20T06:53:30Z
date_updated: 2026-05-20T06:55:49Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1039/d5nr03414k
intvolume: ' 18'
issue: '8'
language:
- iso: eng
main_file_link:
- url: https://pubs.rsc.org/en/content/articlelanding/2026/nr/d5nr03414k
page: 4292-4299
publication: Nanoscale
publication_identifier:
issn:
- 2040-3364
- 2040-3372
publication_status: published
publisher: Royal Society of Chemistry (RSC)
quality_controlled: '1'
status: public
title: A functionalization-free plasmonic hole-sphere nanogap SERS platform for reliable
on-site analysis and oxide-state classification
type: journal_article
user_id: '30525'
volume: 18
year: '2026'
...
---
_id: '65906'
article_number: '1407507'
author:
- first_name: Xiao
full_name: Jin, Xiao
last_name: Jin
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Jin X, Zentgraf T. OAM-multiplexed holography via cascaded metasurfaces without
post sampling and position multiplexing. In: MacDonald KF, Zayats AV, Staude I,
eds. Metamaterials XV. Vol 14075. SPIE; 2026. doi:10.1117/12.3096579'
apa: Jin, X., & Zentgraf, T. (2026). OAM-multiplexed holography via cascaded
metasurfaces without post sampling and position multiplexing. In K. F. MacDonald,
A. V. Zayats, & I. Staude (Eds.), Metamaterials XV (No. 1407507; Vol.
14075). SPIE. https://doi.org/10.1117/12.3096579
bibtex: '@inproceedings{Jin_Zentgraf_2026, title={OAM-multiplexed holography via
cascaded metasurfaces without post sampling and position multiplexing}, volume={14075},
DOI={10.1117/12.3096579}, number={1407507},
booktitle={Metamaterials XV}, publisher={SPIE}, author={Jin, Xiao and Zentgraf,
Thomas}, editor={MacDonald, Kevin F. and Zayats, Anatoly V. and Staude, Isabelle},
year={2026} }'
chicago: Jin, Xiao, and Thomas Zentgraf. “OAM-Multiplexed Holography via Cascaded
Metasurfaces without Post Sampling and Position Multiplexing.” In Metamaterials
XV, edited by Kevin F. MacDonald, Anatoly V. Zayats, and Isabelle Staude,
Vol. 14075. SPIE, 2026. https://doi.org/10.1117/12.3096579.
ieee: 'X. Jin and T. Zentgraf, “OAM-multiplexed holography via cascaded metasurfaces
without post sampling and position multiplexing,” in Metamaterials XV,
Strasbourg, France, 2026, vol. 14075, doi: 10.1117/12.3096579.'
mla: Jin, Xiao, and Thomas Zentgraf. “OAM-Multiplexed Holography via Cascaded Metasurfaces
without Post Sampling and Position Multiplexing.” Metamaterials XV, edited
by Kevin F. MacDonald et al., vol. 14075, 1407507, SPIE, 2026, doi:10.1117/12.3096579.
short: 'X. Jin, T. Zentgraf, in: K.F. MacDonald, A.V. Zayats, I. Staude (Eds.),
Metamaterials XV, SPIE, 2026.'
conference:
location: Strasbourg, France
name: SPIE Photonics Europe 2026
date_created: 2026-06-16T07:37:13Z
date_updated: 2026-06-16T07:40:15Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1117/12.3096579
editor:
- first_name: Kevin F.
full_name: MacDonald, Kevin F.
last_name: MacDonald
- first_name: Anatoly V.
full_name: Zayats, Anatoly V.
last_name: Zayats
- first_name: Isabelle
full_name: Staude, Isabelle
last_name: Staude
intvolume: ' 14075'
language:
- iso: eng
main_file_link:
- url: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/14075/3096579/OAM-multiplexed-holography-via-cascaded-metasurfaces-without-post-sampling-and/10.1117/12.3096579.full
publication: Metamaterials XV
publication_status: published
publisher: SPIE
status: public
title: OAM-multiplexed holography via cascaded metasurfaces without post sampling
and position multiplexing
type: conference
user_id: '30525'
volume: 14075
year: '2026'
...
---
_id: '66555'
abstract:
- lang: eng
text: 'Scalable plasmonic technologies face a critical trade‐off: few‐body architectures
offer high enhancement but are sensitive to fabrication flaws, while scalable
methods like solid‐state dewetting yield large, low‐enhancement gaps. We introduce
a paradigm shift using a many‐body plasmonic architecture inspired by statistical
mechanics. By moving toward the continuum limit, local geometric variations are
statistically averaged out, effectively decoupling optical performance from microscopic
disorder. We implement this concept via a lithography‐ and etching‐free, multi‐step
dewetting strategy, creating wafer‐scale nanoclusters. This process strategically
forms a robust many‐body system by introducing numerous small satellite nanoparticles
between larger particles. Crucially, this design achieves a high collective enhancement
that surpasses even optimized few‐body systems, despite having larger individual
gaps. Under optimized conditions, these substrates exhibit a surface‐enhanced
Raman scattering enhancement factor approaching 4 × 10^8 with unprecedented reproducibility
(RSD of ∼10%). This scalable, low‐cost concept establishes a practical route toward
reproducible wafer‐scale nanophotonic platforms for sensing, spectroscopy, and
quantum technologies.'
article_number: e71610
article_type: original
author:
- first_name: Minjun
full_name: Kim, Minjun
last_name: Kim
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
id: '103814'
last_name: Devaraj
- first_name: Hyeon‐Seok
full_name: Seo, Hyeon‐Seok
last_name: Seo
- first_name: Seong‐Jae
full_name: Eom, Seong‐Jae
last_name: Eom
- first_name: Jeong‐Su
full_name: Lee, Jeong‐Su
last_name: Lee
- first_name: Donghan
full_name: Lee, Donghan
last_name: Lee
- first_name: Min Yong
full_name: Jeon, Min Yong
last_name: Jeon
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Jong‐Min
full_name: Lee, Jong‐Min
last_name: Lee
citation:
ama: Kim M, Devaraj V, Seo H, et al. Engineering Disordered Many‐Particle Plasmonic
Nanoclusters for Wafer‐Scale Uniform and Giant Electromagnetic Field Enhancement.
Laser & Photonics Reviews. Published online 2026. doi:10.1002/lpor.71610
apa: Kim, M., Devaraj, V., Seo, H., Eom, S., Lee, J., Lee, D., Jeon, M. Y., Zentgraf,
T., & Lee, J. (2026). Engineering Disordered Many‐Particle Plasmonic Nanoclusters
for Wafer‐Scale Uniform and Giant Electromagnetic Field Enhancement. Laser
& Photonics Reviews, Article e71610. https://doi.org/10.1002/lpor.71610
bibtex: '@article{Kim_Devaraj_Seo_Eom_Lee_Lee_Jeon_Zentgraf_Lee_2026, title={Engineering
Disordered Many‐Particle Plasmonic Nanoclusters for Wafer‐Scale Uniform and Giant
Electromagnetic Field Enhancement}, DOI={10.1002/lpor.71610},
number={e71610}, journal={Laser & Photonics Reviews}, publisher={Wiley},
author={Kim, Minjun and Devaraj, Vasanthan and Seo, Hyeon‐Seok and Eom, Seong‐Jae
and Lee, Jeong‐Su and Lee, Donghan and Jeon, Min Yong and Zentgraf, Thomas and
Lee, Jong‐Min}, year={2026} }'
chicago: Kim, Minjun, Vasanthan Devaraj, Hyeon‐Seok Seo, Seong‐Jae Eom, Jeong‐Su
Lee, Donghan Lee, Min Yong Jeon, Thomas Zentgraf, and Jong‐Min Lee. “Engineering
Disordered Many‐Particle Plasmonic Nanoclusters for Wafer‐Scale Uniform and Giant
Electromagnetic Field Enhancement.” Laser & Photonics Reviews,
2026. https://doi.org/10.1002/lpor.71610.
ieee: 'M. Kim et al., “Engineering Disordered Many‐Particle Plasmonic Nanoclusters
for Wafer‐Scale Uniform and Giant Electromagnetic Field Enhancement,” Laser
& Photonics Reviews, Art. no. e71610, 2026, doi: 10.1002/lpor.71610.'
mla: Kim, Minjun, et al. “Engineering Disordered Many‐Particle Plasmonic Nanoclusters
for Wafer‐Scale Uniform and Giant Electromagnetic Field Enhancement.” Laser
& Photonics Reviews, e71610, Wiley, 2026, doi:10.1002/lpor.71610.
short: M. Kim, V. Devaraj, H. Seo, S. Eom, J. Lee, D. Lee, M.Y. Jeon, T. Zentgraf,
J. Lee, Laser & Photonics Reviews (2026).
date_created: 2026-07-22T05:49:50Z
date_updated: 2026-07-22T05:52:38Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1002/lpor.71610
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/10.1002/lpor.71610
oa: '1'
publication: Laser & Photonics Reviews
publication_identifier:
issn:
- 1863-8880
- 1863-8899
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Engineering Disordered Many‐Particle Plasmonic Nanoclusters for Wafer‐Scale
Uniform and Giant Electromagnetic Field Enhancement
type: journal_article
user_id: '30525'
year: '2026'
...
---
_id: '66674'
abstract:
- lang: eng
text: Efficient detection of near-infrared light at telecommunication wavelengths
remains a central challenge for GaAs-based photonic and optoelectronic devices
due to the absence of linear absorption below the bandgap. Here, we demonstrate
a hybrid nonlinear optoelectronic device that enhances the detection efficiency
of a (001)-oriented GaAs PIN photodiode under telecommunication-wavelength illumination,
where absorption is intrinsically limited to two-photon absorption (2PA). Our
approach relies on the integration of a transferred, nanopatterned 385 nm-thick
(111)-oriented GaAs nanofilm acting as an on-chip nonlinear frequency-conversion
layer. Elliptical GaAs nanoresonators are employed to enhance second-harmonic
generation (SHG) resonantly, converting incident 1550 nm radiation into above-bandgap
photons efficiently absorbed by the underlying diode. Spatially resolved current–voltage
measurements reveal a pronounced enhancement of the detector response in regions
covered by the nanoantennas. The device exhibits a low dark current, while the
metasurface-covered regions show the largest current response under 1560 nm excitation
compared to the bare GaAs(100) diode and the unstructured GaAs(111) film. These
results establish a direct functional link between dielectric metasurface–based
nonlinear frequency conversion and electrical photodetection, providing a viable
route toward integrated sub-bandgap detection schemes.
article_number: '30335'
article_type: original
author:
- first_name: Vladimir
full_name: Spedt, Vladimir
last_name: Spedt
- first_name: Falco
full_name: Meier, Falco
last_name: Meier
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Pascal
full_name: Mahler, Pascal
last_name: Mahler
- first_name: Tobias
full_name: Henksmeier, Tobias
id: '42539'
last_name: Henksmeier
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Spedt V, Meier F, Geromel R, et al. Hybrid GaAs (111)/GaAs (100) PIN photodiodes
for metasurface-assisted nonlinear upconversion detection. Optics Express.
2026;34(16). doi:10.1364/oe.601288
apa: Spedt, V., Meier, F., Geromel, R., Mahler, P., Henksmeier, T., Reuter, D.,
Zentgraf, T., & Meier, C. (2026). Hybrid GaAs (111)/GaAs (100) PIN photodiodes
for metasurface-assisted nonlinear upconversion detection. Optics Express,
34(16), Article 30335. https://doi.org/10.1364/oe.601288
bibtex: '@article{Spedt_Meier_Geromel_Mahler_Henksmeier_Reuter_Zentgraf_Meier_2026,
title={Hybrid GaAs (111)/GaAs (100) PIN photodiodes for metasurface-assisted nonlinear
upconversion detection}, volume={34}, DOI={10.1364/oe.601288},
number={1630335}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Spedt, Vladimir and Meier, Falco and Geromel, René and Mahler, Pascal
and Henksmeier, Tobias and Reuter, Dirk and Zentgraf, Thomas and Meier, Cedrik},
year={2026} }'
chicago: Spedt, Vladimir, Falco Meier, René Geromel, Pascal Mahler, Tobias Henksmeier,
Dirk Reuter, Thomas Zentgraf, and Cedrik Meier. “Hybrid GaAs (111)/GaAs (100)
PIN Photodiodes for Metasurface-Assisted Nonlinear Upconversion Detection.” Optics
Express 34, no. 16 (2026). https://doi.org/10.1364/oe.601288.
ieee: 'V. Spedt et al., “Hybrid GaAs (111)/GaAs (100) PIN photodiodes for
metasurface-assisted nonlinear upconversion detection,” Optics Express,
vol. 34, no. 16, Art. no. 30335, 2026, doi: 10.1364/oe.601288.'
mla: Spedt, Vladimir, et al. “Hybrid GaAs (111)/GaAs (100) PIN Photodiodes for Metasurface-Assisted
Nonlinear Upconversion Detection.” Optics Express, vol. 34, no. 16, 30335,
Optica Publishing Group, 2026, doi:10.1364/oe.601288.
short: V. Spedt, F. Meier, R. Geromel, P. Mahler, T. Henksmeier, D. Reuter, T. Zentgraf,
C. Meier, Optics Express 34 (2026).
date_created: 2026-08-06T12:15:59Z
date_updated: 2026-08-06T12:18:58Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1364/oe.601288
file:
- access_level: closed
content_type: application/pdf
creator: cedrikm
date_created: 2026-08-06T12:18:22Z
date_updated: 2026-08-06T12:18:22Z
file_id: '66675'
file_name: oe-34-16-30335.pdf
file_size: 2894783
relation: main_file
success: 1
file_date_updated: 2026-08-06T12:18:22Z
has_accepted_license: '1'
intvolume: ' 34'
issue: '16'
language:
- iso: eng
project:
- _id: '55'
name: TRR 142 - Project Area B
- _id: '170'
name: 'TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage
der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: Hybrid GaAs (111)/GaAs (100) PIN photodiodes for metasurface-assisted nonlinear
upconversion detection
type: journal_article
user_id: '20798'
volume: 34
year: '2026'
...
---
_id: '66632'
abstract:
- lang: eng
text: Three‐dimensional (3D) assemblies of gold nanoparticles (AuNPs) offer a rich
platform for plasmonic coupling and near‐field engineering, yet their optical
behavior is often complex due to structural disorder and fabrication‐induced variability.
Here, we present a systematic optical investigation of large‐scale 3D AuNP assemblies
fabricated via meniscus‐guided assembly, focusing on the reproducibility, spatial
uniformity, and mode evolution of their plasmonic responses. Spatially‐resolved
dark‐field scattering measurements reveal that high‐aspect‐ratio AuNP pillars
exhibit uniform scattering spectra along their height and across different pillars,
despite variations in geometry and structure. Electromagnetic simulations suggest
that this robustness arises from a collective many‐particle plasmonic response
that remains optically active despite structural perturbations. The corresponding
near‐field and surface‐charge distributions remain spatially distributed under
representative structural perturbations, consistent with volumetric averaging
across the three‐dimensional assembly. Building on this robust platform, we introduce
compositional modulation through a core–satellite architecture by incorporating
smaller AuNPs. This yields a composition‐dependent spectral redistribution, including
the emergence of an additional long‐wavelength spectral feature in the core–satellite
assemblies. Wavelength‐dependent surface‐enhanced Raman scattering measurements
reveal contrasting responses under 633 and 785 nm excitation, reflecting redistribution
of local plasmonic coupling pathways. These results provide process‐enabled guidelines
for using meniscus‐guided 3D‐nanoprinting to realize robust nanoparticle assemblies.
article_number: e71686
article_type: original
author:
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
id: '103814'
last_name: Devaraj
- first_name: Sunghyun
full_name: Kwak, Sunghyun
last_name: Kwak
- first_name: Hyeongjip
full_name: Kim, Hyeongjip
last_name: Kim
- first_name: Sang‐Keun
full_name: Sung, Sang‐Keun
last_name: Sung
- first_name: Jong‐Min
full_name: Lee, Jong‐Min
last_name: Lee
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Won‐Geun
full_name: Kim, Won‐Geun
last_name: Kim
citation:
ama: Devaraj V, Kwak S, Kim H, et al. Spatially Uniform and Defect‐Tolerant Plasmonic
Responses in 3D Printed Gold Nanoparticle Assemblies. Laser & Photonics
Reviews. Published online 2026. doi:10.1002/lpor.71686
apa: Devaraj, V., Kwak, S., Kim, H., Sung, S., Lee, J., Zentgraf, T., & Kim,
W. (2026). Spatially Uniform and Defect‐Tolerant Plasmonic Responses in 3D Printed
Gold Nanoparticle Assemblies. Laser & Photonics Reviews, Article
e71686. https://doi.org/10.1002/lpor.71686
bibtex: '@article{Devaraj_Kwak_Kim_Sung_Lee_Zentgraf_Kim_2026, title={Spatially
Uniform and Defect‐Tolerant Plasmonic Responses in 3D Printed Gold Nanoparticle
Assemblies}, DOI={10.1002/lpor.71686},
number={e71686}, journal={Laser & Photonics Reviews}, publisher={Wiley},
author={Devaraj, Vasanthan and Kwak, Sunghyun and Kim, Hyeongjip and Sung, Sang‐Keun
and Lee, Jong‐Min and Zentgraf, Thomas and Kim, Won‐Geun}, year={2026} }'
chicago: Devaraj, Vasanthan, Sunghyun Kwak, Hyeongjip Kim, Sang‐Keun Sung, Jong‐Min
Lee, Thomas Zentgraf, and Won‐Geun Kim. “Spatially Uniform and Defect‐Tolerant
Plasmonic Responses in 3D Printed Gold Nanoparticle Assemblies.” Laser &
Photonics Reviews, 2026. https://doi.org/10.1002/lpor.71686.
ieee: 'V. Devaraj et al., “Spatially Uniform and Defect‐Tolerant Plasmonic
Responses in 3D Printed Gold Nanoparticle Assemblies,” Laser & Photonics
Reviews, Art. no. e71686, 2026, doi: 10.1002/lpor.71686.'
mla: Devaraj, Vasanthan, et al. “Spatially Uniform and Defect‐Tolerant Plasmonic
Responses in 3D Printed Gold Nanoparticle Assemblies.” Laser & Photonics
Reviews, e71686, Wiley, 2026, doi:10.1002/lpor.71686.
short: V. Devaraj, S. Kwak, H. Kim, S. Sung, J. Lee, T. Zentgraf, W. Kim, Laser
& Photonics Reviews (2026).
date_created: 2026-08-03T06:43:03Z
date_updated: 2026-08-03T06:45:01Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1002/lpor.71686
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/10.1002/lpor.71686
oa: '1'
publication: Laser & Photonics Reviews
publication_identifier:
issn:
- 1863-8880
- 1863-8899
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Spatially Uniform and Defect‐Tolerant Plasmonic Responses in 3D Printed Gold
Nanoparticle Assemblies
type: journal_article
user_id: '30525'
year: '2026'
...
---
_id: '60022'
author:
- first_name: Michael
full_name: Brauckmann, Michael
last_name: Brauckmann
- first_name: Emmanuel
full_name: Narvaez Castaneda, Emmanuel
last_name: Narvaez Castaneda
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Brauckmann M, Narvaez Castaneda E, Siebert D, Brecht B, Förstner J, Zentgraf
T. Enhancement Of Light-matter Interaction In Topological Waveguides And Resonators.
In: Proceedings of The 15th International Conference on Metamaterials, Photonic
Crystals and Plasmonics. ; 2025.'
apa: Brauckmann, M., Narvaez Castaneda, E., Siebert, D., Brecht, B., Förstner, J.,
& Zentgraf, T. (2025). Enhancement Of Light-matter Interaction In Topological
Waveguides And Resonators. Proceedings of The 15th International Conference
on Metamaterials, Photonic Crystals and Plasmonics. META 2025 - The 15th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, Malaga, Spain.
bibtex: '@inproceedings{Brauckmann_Narvaez Castaneda_Siebert_Brecht_Förstner_Zentgraf_2025,
title={Enhancement Of Light-matter Interaction In Topological Waveguides And Resonators},
booktitle={Proceedings of The 15th International Conference on Metamaterials,
Photonic Crystals and Plasmonics}, author={Brauckmann, Michael and Narvaez Castaneda,
Emmanuel and Siebert, Dustin and Brecht, Benjamin and Förstner, Jens and Zentgraf,
Thomas}, year={2025} }'
chicago: Brauckmann, Michael, Emmanuel Narvaez Castaneda, Dustin Siebert, Benjamin
Brecht, Jens Förstner, and Thomas Zentgraf. “Enhancement Of Light-Matter Interaction
In Topological Waveguides And Resonators.” In Proceedings of The 15th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, 2025.
ieee: M. Brauckmann, E. Narvaez Castaneda, D. Siebert, B. Brecht, J. Förstner, and
T. Zentgraf, “Enhancement Of Light-matter Interaction In Topological Waveguides
And Resonators,” presented at the META 2025 - The 15th International Conference
on Metamaterials, Photonic Crystals and Plasmonics, Malaga, Spain, 2025.
mla: Brauckmann, Michael, et al. “Enhancement Of Light-Matter Interaction In Topological
Waveguides And Resonators.” Proceedings of The 15th International Conference
on Metamaterials, Photonic Crystals and Plasmonics, 2025.
short: 'M. Brauckmann, E. Narvaez Castaneda, D. Siebert, B. Brecht, J. Förstner,
T. Zentgraf, in: Proceedings of The 15th International Conference on Metamaterials,
Photonic Crystals and Plasmonics, 2025.'
conference:
end_date: 2025-07-25
location: Malaga, Spain
name: META 2025 - The 15th International Conference on Metamaterials, Photonic Crystals
and Plasmonics
start_date: 2025-07-22
date_created: 2025-05-23T06:10:53Z
date_updated: 2025-05-23T06:11:20Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '164'
grant_number: '231447078'
name: 'TRR 142 - A09: TRR 142 - Erzeugung von Drei-Photonen-Zuständen mit On-Chip
Pumplichtunterdrückung in topologischen Wellenleitern (A09*)'
publication: Proceedings of The 15th International Conference on Metamaterials, Photonic
Crystals and Plasmonics
status: public
title: Enhancement Of Light-matter Interaction In Topological Waveguides And Resonators
type: conference
user_id: '30525'
year: '2025'
...
---
_id: '62286'
abstract:
- lang: eng
text: Optical tweezer arrays of laser-cooled and individually controlled particles
have revolutionized atomic, molecular, and optical physics. They afford exquisite
capabilities for applications in quantum simulation of many-body physics, quantum
computation, and sensing. Underlying this development is the technical maturity
of generating scalable optical beams, enabled by active components and a high
numerical aperture objective. However, such a complex combination of bulk optics
outside the vacuum chamber is very sensitive to any vibration and drift. Here,
we demonstrate the generation of a 3 × 3 static tweezer array with a single chip-scale
multifunctional metasurface element in vacuum, replacing the meter-long free space
optics. Fluorescence counts on the camera validate the successful trapping of
the atomic ensemble array and showcase a promising strategy for integrated photonics
with cold atom systems. The introduction of a polarization independent dual-wavelength
metasurface significantly enhances fluorescence collection efficiency while reducing
experimental complexity. This approach paves the way for scalable neutral atom
platforms and offers a compelling route towards the realization of next generation
quantum metasurfaces.
article_number: '51085'
article_type: original
author:
- first_name: Donghao
full_name: Li, Donghao
last_name: Li
- first_name: Qiming
full_name: Liao, Qiming
last_name: Liao
- first_name: Beining
full_name: Xu, Beining
last_name: Xu
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Emmanuel
full_name: Narvaez Castaneda, Emmanuel
last_name: Narvaez Castaneda
- first_name: Yaoting
full_name: Zhou, Yaoting
last_name: Zhou
- first_name: Keyu
full_name: Qin, Keyu
last_name: Qin
- first_name: Zhongxiao
full_name: Xu, Zhongxiao
last_name: Xu
- first_name: Heng
full_name: Shen, Heng
last_name: Shen
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
citation:
ama: Li D, Liao Q, Xu B, et al. In vacuum metasurface for optical microtrap array.
Optics Express. 2025;33(24). doi:10.1364/oe.580201
apa: Li, D., Liao, Q., Xu, B., Zentgraf, T., Narvaez Castaneda, E., Zhou, Y., Qin,
K., Xu, Z., Shen, H., & Huang, L. (2025). In vacuum metasurface for optical
microtrap array. Optics Express, 33(24), Article 51085. https://doi.org/10.1364/oe.580201
bibtex: '@article{Li_Liao_Xu_Zentgraf_Narvaez Castaneda_Zhou_Qin_Xu_Shen_Huang_2025,
title={In vacuum metasurface for optical microtrap array}, volume={33}, DOI={10.1364/oe.580201}, number={2451085},
journal={Optics Express}, publisher={Optica Publishing Group}, author={Li, Donghao
and Liao, Qiming and Xu, Beining and Zentgraf, Thomas and Narvaez Castaneda, Emmanuel
and Zhou, Yaoting and Qin, Keyu and Xu, Zhongxiao and Shen, Heng and Huang, Lingling},
year={2025} }'
chicago: Li, Donghao, Qiming Liao, Beining Xu, Thomas Zentgraf, Emmanuel Narvaez
Castaneda, Yaoting Zhou, Keyu Qin, Zhongxiao Xu, Heng Shen, and Lingling Huang.
“In Vacuum Metasurface for Optical Microtrap Array.” Optics Express 33,
no. 24 (2025). https://doi.org/10.1364/oe.580201.
ieee: 'D. Li et al., “In vacuum metasurface for optical microtrap array,”
Optics Express, vol. 33, no. 24, Art. no. 51085, 2025, doi: 10.1364/oe.580201.'
mla: Li, Donghao, et al. “In Vacuum Metasurface for Optical Microtrap Array.” Optics
Express, vol. 33, no. 24, 51085, Optica Publishing Group, 2025, doi:10.1364/oe.580201.
short: D. Li, Q. Liao, B. Xu, T. Zentgraf, E. Narvaez Castaneda, Y. Zhou, K. Qin,
Z. Xu, H. Shen, L. Huang, Optics Express 33 (2025).
date_created: 2025-11-24T06:31:17Z
date_updated: 2025-11-24T06:35:19Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1364/oe.580201
intvolume: ' 33'
issue: '24'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://opg.optica.org/oe/fulltext.cfm?uri=oe-33-24-51085
oa: '1'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: In vacuum metasurface for optical microtrap array
type: journal_article
user_id: '30525'
volume: 33
year: '2025'
...
---
_id: '61352'
author:
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
id: '103814'
last_name: Devaraj
- first_name: Isaac Azahel
full_name: Ruiz Alvarado, Isaac Azahel
id: '79462'
last_name: Ruiz Alvarado
orcid: 0000-0002-4710-1170
- first_name: Jongmin
full_name: Lee, Jongmin
last_name: Lee
- first_name: Jin-Woo
full_name: Oh, Jin-Woo
last_name: Oh
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Devaraj V, Ruiz Alvarado IA, Lee J, et al. Dynamic and Reversible Plasmonic
Nanogaps From Isolated Dimer Nanoparticles via Self-Assembly. In: 2025 Conference
on Lasers and Electro-Optics Europe &Amp; European Quantum Electronics
Conference (CLEO/Europe-EQEC). IEEE; 2025. doi:10.1109/cleo/europe-eqec65582.2025.11109762'
apa: Devaraj, V., Ruiz Alvarado, I. A., Lee, J., Oh, J.-W., Gerstmann, U., Schmidt,
W. G., & Zentgraf, T. (2025). Dynamic and Reversible Plasmonic Nanogaps From
Isolated Dimer Nanoparticles via Self-Assembly. 2025 Conference on Lasers and
Electro-Optics Europe &Amp; European Quantum Electronics Conference (CLEO/Europe-EQEC).
https://doi.org/10.1109/cleo/europe-eqec65582.2025.11109762
bibtex: '@inproceedings{Devaraj_Ruiz Alvarado_Lee_Oh_Gerstmann_Schmidt_Zentgraf_2025,
title={Dynamic and Reversible Plasmonic Nanogaps From Isolated Dimer Nanoparticles
via Self-Assembly}, DOI={10.1109/cleo/europe-eqec65582.2025.11109762},
booktitle={2025 Conference on Lasers and Electro-Optics Europe & European
Quantum Electronics Conference (CLEO/Europe-EQEC)}, publisher={IEEE}, author={Devaraj,
Vasanthan and Ruiz Alvarado, Isaac Azahel and Lee, Jongmin and Oh, Jin-Woo and
Gerstmann, Uwe and Schmidt, Wolf Gero and Zentgraf, Thomas}, year={2025} }'
chicago: Devaraj, Vasanthan, Isaac Azahel Ruiz Alvarado, Jongmin Lee, Jin-Woo Oh,
Uwe Gerstmann, Wolf Gero Schmidt, and Thomas Zentgraf. “Dynamic and Reversible
Plasmonic Nanogaps From Isolated Dimer Nanoparticles via Self-Assembly.” In 2025
Conference on Lasers and Electro-Optics Europe &Amp; European Quantum
Electronics Conference (CLEO/Europe-EQEC). IEEE, 2025. https://doi.org/10.1109/cleo/europe-eqec65582.2025.11109762.
ieee: 'V. Devaraj et al., “Dynamic and Reversible Plasmonic Nanogaps From
Isolated Dimer Nanoparticles via Self-Assembly,” 2025, doi: 10.1109/cleo/europe-eqec65582.2025.11109762.'
mla: Devaraj, Vasanthan, et al. “Dynamic and Reversible Plasmonic Nanogaps From
Isolated Dimer Nanoparticles via Self-Assembly.” 2025 Conference on Lasers
and Electro-Optics Europe &Amp; European Quantum Electronics Conference
(CLEO/Europe-EQEC), IEEE, 2025, doi:10.1109/cleo/europe-eqec65582.2025.11109762.
short: 'V. Devaraj, I.A. Ruiz Alvarado, J. Lee, J.-W. Oh, U. Gerstmann, W.G. Schmidt,
T. Zentgraf, in: 2025 Conference on Lasers and Electro-Optics Europe &Amp;
European Quantum Electronics Conference (CLEO/Europe-EQEC), IEEE, 2025.'
date_created: 2025-09-18T11:09:30Z
date_updated: 2025-12-05T13:32:18Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '289'
- _id: '35'
- _id: '230'
- _id: '790'
doi: 10.1109/cleo/europe-eqec65582.2025.11109762
language:
- iso: eng
publication: 2025 Conference on Lasers and Electro-Optics Europe & European
Quantum Electronics Conference (CLEO/Europe-EQEC)
publication_status: published
publisher: IEEE
status: public
title: Dynamic and Reversible Plasmonic Nanogaps From Isolated Dimer Nanoparticles
via Self-Assembly
type: conference
user_id: '16199'
year: '2025'
...
---
_id: '58642'
abstract:
- lang: eng
text: We present a cost-effective self-assembly method to fabricate low-density
dimer NPs in an NPoM architecture, using the M13 phage as a spacer layer. This
will enable the development of dynamic plasmonic devices and advanced sensing
applications.
article_type: original
author:
- first_name: Vasanthan
full_name: Devaraj, Vasanthan
id: '103814'
last_name: Devaraj
- first_name: Isaac Azahel
full_name: Ruiz Alvarado, Isaac Azahel
id: '79462'
last_name: Ruiz Alvarado
orcid: 0000-0002-4710-1170
- first_name: Jong-Min
full_name: Lee, Jong-Min
last_name: Lee
- first_name: Jin-Woo
full_name: Oh, Jin-Woo
last_name: Oh
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Devaraj V, Ruiz Alvarado IA, Lee J-M, et al. Self-assembly of isolated plasmonic
dimers with sub-5 nm gaps on a metallic mirror. Nanoscale Horizons. 2025;10:537-548.
doi:10.1039/d4nh00546e
apa: Devaraj, V., Ruiz Alvarado, I. A., Lee, J.-M., Oh, J.-W., Gerstmann, U., Schmidt,
W. G., & Zentgraf, T. (2025). Self-assembly of isolated plasmonic dimers with
sub-5 nm gaps on a metallic mirror. Nanoscale Horizons, 10, 537–548.
https://doi.org/10.1039/d4nh00546e
bibtex: '@article{Devaraj_Ruiz Alvarado_Lee_Oh_Gerstmann_Schmidt_Zentgraf_2025,
title={Self-assembly of isolated plasmonic dimers with sub-5 nm gaps on a metallic
mirror}, volume={10}, DOI={10.1039/d4nh00546e},
journal={Nanoscale Horizons}, publisher={Royal Society of Chemistry (RSC)}, author={Devaraj,
Vasanthan and Ruiz Alvarado, Isaac Azahel and Lee, Jong-Min and Oh, Jin-Woo and
Gerstmann, Uwe and Schmidt, Wolf Gero and Zentgraf, Thomas}, year={2025}, pages={537–548}
}'
chicago: 'Devaraj, Vasanthan, Isaac Azahel Ruiz Alvarado, Jong-Min Lee, Jin-Woo
Oh, Uwe Gerstmann, Wolf Gero Schmidt, and Thomas Zentgraf. “Self-Assembly of Isolated
Plasmonic Dimers with Sub-5 Nm Gaps on a Metallic Mirror.” Nanoscale Horizons
10 (2025): 537–48. https://doi.org/10.1039/d4nh00546e.'
ieee: 'V. Devaraj et al., “Self-assembly of isolated plasmonic dimers with
sub-5 nm gaps on a metallic mirror,” Nanoscale Horizons, vol. 10, pp. 537–548,
2025, doi: 10.1039/d4nh00546e.'
mla: Devaraj, Vasanthan, et al. “Self-Assembly of Isolated Plasmonic Dimers with
Sub-5 Nm Gaps on a Metallic Mirror.” Nanoscale Horizons, vol. 10, Royal
Society of Chemistry (RSC), 2025, pp. 537–48, doi:10.1039/d4nh00546e.
short: V. Devaraj, I.A. Ruiz Alvarado, J.-M. Lee, J.-W. Oh, U. Gerstmann, W.G. Schmidt,
T. Zentgraf, Nanoscale Horizons 10 (2025) 537–548.
date_created: 2025-02-14T08:13:10Z
date_updated: 2025-07-09T14:04:39Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '35'
- _id: '295'
- _id: '170'
- _id: '429'
- _id: '27'
doi: 10.1039/d4nh00546e
intvolume: ' 10'
language:
- iso: eng
page: 537-548
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '168'
grant_number: '231447078'
name: 'TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften
von Lithiumniobat (B07*)'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '445'
grant_number: '367360193'
name: Hochleistungsrechner Noctua in Paderborn
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Nanoscale Horizons
publication_identifier:
issn:
- 2055-6756
- 2055-6764
publication_status: published
publisher: Royal Society of Chemistry (RSC)
quality_controlled: '1'
status: public
title: Self-assembly of isolated plasmonic dimers with sub-5 nm gaps on a metallic
mirror
type: journal_article
user_id: '16199'
volume: 10
year: '2025'
...
---
_id: '58606'
article_type: original
author:
- first_name: Albert
full_name: Mathew, Albert
last_name: Mathew
- first_name: Rebecca
full_name: Aschwanden, Rebecca
last_name: Aschwanden
- first_name: Aditya
full_name: Tripathi, Aditya
last_name: Tripathi
- first_name: Piyush
full_name: Jangid, Piyush
last_name: Jangid
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Sergey
full_name: Kruk, Sergey
last_name: Kruk
citation:
ama: Mathew A, Aschwanden R, Tripathi A, et al. Nonreciprocal Metasurfaces with
Epsilon-Near-Zero Materials. Nano Letters. Published online 2025. doi:10.1021/acs.nanolett.4c06188
apa: Mathew, A., Aschwanden, R., Tripathi, A., Jangid, P., Sain, B., Zentgraf, T.,
& Kruk, S. (2025). Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials.
Nano Letters. https://doi.org/10.1021/acs.nanolett.4c06188
bibtex: '@article{Mathew_Aschwanden_Tripathi_Jangid_Sain_Zentgraf_Kruk_2025, title={Nonreciprocal
Metasurfaces with Epsilon-Near-Zero Materials}, DOI={10.1021/acs.nanolett.4c06188},
journal={Nano Letters}, publisher={American Chemical Society (ACS)}, author={Mathew,
Albert and Aschwanden, Rebecca and Tripathi, Aditya and Jangid, Piyush and Sain,
Basudeb and Zentgraf, Thomas and Kruk, Sergey}, year={2025} }'
chicago: Mathew, Albert, Rebecca Aschwanden, Aditya Tripathi, Piyush Jangid, Basudeb
Sain, Thomas Zentgraf, and Sergey Kruk. “Nonreciprocal Metasurfaces with Epsilon-Near-Zero
Materials.” Nano Letters, 2025. https://doi.org/10.1021/acs.nanolett.4c06188.
ieee: 'A. Mathew et al., “Nonreciprocal Metasurfaces with Epsilon-Near-Zero
Materials,” Nano Letters, 2025, doi: 10.1021/acs.nanolett.4c06188.'
mla: Mathew, Albert, et al. “Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials.”
Nano Letters, American Chemical Society (ACS), 2025, doi:10.1021/acs.nanolett.4c06188.
short: A. Mathew, R. Aschwanden, A. Tripathi, P. Jangid, B. Sain, T. Zentgraf, S.
Kruk, Nano Letters (2025).
date_created: 2025-02-12T12:54:41Z
date_updated: 2026-04-20T05:06:06Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acs.nanolett.4c06188
external_id:
arxiv:
- '2501.11920'
keyword:
- metasurfaces
- nanophotonics
- nonreciprocity
- optical isolators
- silicon photonics
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.4c06188
project:
- _id: '53'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
- _id: '65'
name: 'TRR 142 - A08: TRR 142 - Nichtlineare Kopplung von Zwischenschicht-Exzitonen
in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten
(A08)'
publication: Nano Letters
publication_identifier:
issn:
- 1530-6984
- 1530-6992
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials
type: journal_article
user_id: '30525'
year: '2025'
...
---
_id: '51519'
author:
- first_name: Tie Jun
full_name: Cui, Tie Jun
last_name: Cui
- first_name: Shuang
full_name: Zhang, Shuang
last_name: Zhang
- first_name: Andrea
full_name: Alu, Andrea
last_name: Alu
- first_name: Martin
full_name: Wegener, Martin
last_name: Wegener
- first_name: John
full_name: Pendry, John
last_name: Pendry
- first_name: Jie
full_name: Luo, Jie
last_name: Luo
- first_name: Yun
full_name: Lai, Yun
last_name: Lai
- first_name: Zuojia
full_name: Wang, Zuojia
last_name: Wang
- first_name: Xiao
full_name: Lin, Xiao
last_name: Lin
- first_name: Hongsheng
full_name: Chen, Hongsheng
last_name: Chen
- first_name: Ping
full_name: Chen, Ping
last_name: Chen
- first_name: Rui-Xin
full_name: Wu, Rui-Xin
last_name: Wu
- first_name: Yuhang
full_name: Yin, Yuhang
last_name: Yin
- first_name: Pengfei
full_name: Zhao, Pengfei
last_name: Zhao
- first_name: Huanyang
full_name: Chen, Huanyang
last_name: Chen
- first_name: Yue
full_name: Li, Yue
last_name: Li
- first_name: Ziheng
full_name: Zhou, Ziheng
last_name: Zhou
- first_name: Nader
full_name: Engheta, Nader
last_name: Engheta
- first_name: V. S.
full_name: Asadchy, V. S.
last_name: Asadchy
- first_name: Constantin
full_name: Simovski, Constantin
last_name: Simovski
- first_name: Sergei A
full_name: Tretyakov, Sergei A
last_name: Tretyakov
- first_name: Biao
full_name: Yang, Biao
last_name: Yang
- first_name: Sawyer D.
full_name: Campbell, Sawyer D.
last_name: Campbell
- first_name: Yang
full_name: Hao, Yang
last_name: Hao
- first_name: Douglas H
full_name: Werner, Douglas H
last_name: Werner
- first_name: Shulin
full_name: Sun, Shulin
last_name: Sun
- first_name: Lei
full_name: Zhou, Lei
last_name: Zhou
- first_name: Su
full_name: Xu, Su
last_name: Xu
- first_name: Hong-Bo
full_name: Sun, Hong-Bo
last_name: Sun
- first_name: Zhou
full_name: Zhou, Zhou
last_name: Zhou
- first_name: Zile
full_name: Li, Zile
last_name: Li
- first_name: Guoxing
full_name: Zheng, Guoxing
last_name: Zheng
- first_name: Xianzhong
full_name: Chen, Xianzhong
last_name: Chen
- first_name: Tao
full_name: Li, Tao
last_name: Li
- first_name: Shi-Ning
full_name: Zhu, Shi-Ning
last_name: Zhu
- first_name: Junxiao
full_name: Zhou, Junxiao
last_name: Zhou
- first_name: Junxiang
full_name: Zhao, Junxiang
last_name: Zhao
- first_name: Zhaowei
full_name: Liu, Zhaowei
last_name: Liu
- first_name: Yuchao
full_name: Zhang, Yuchao
last_name: Zhang
- first_name: Qiming
full_name: Zhang, Qiming
last_name: Zhang
- first_name: Min
full_name: Gu, Min
last_name: Gu
- first_name: Shumin
full_name: Xiao, Shumin
last_name: Xiao
- first_name: Yongmin
full_name: Liu, Yongmin
last_name: Liu
- first_name: Xiaoyu
full_name: Zhang, Xiaoyu
last_name: Zhang
- first_name: Yutao
full_name: Tang, Yutao
last_name: Tang
- first_name: Guixin
full_name: Li, Guixin
last_name: Li
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Kirill
full_name: Koshelev, Kirill
last_name: Koshelev
- first_name: Yuri S.
full_name: Kivshar, Yuri S.
last_name: Kivshar
- first_name: Xin
full_name: Li, Xin
last_name: Li
- first_name: Trevon
full_name: Badloe, Trevon
last_name: Badloe
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
- first_name: Junsuk
full_name: Rho, Junsuk
last_name: Rho
- first_name: Shuming
full_name: Wang, Shuming
last_name: Wang
- first_name: Din Ping
full_name: Tsai, Din Ping
last_name: Tsai
- first_name: A. Yu.
full_name: Bykov, A. Yu.
last_name: Bykov
- first_name: Alexey V
full_name: Krasavin, Alexey V
last_name: Krasavin
- first_name: Anatoly V
full_name: Zayats, Anatoly V
last_name: Zayats
- first_name: Cormac
full_name: McDonnell, Cormac
last_name: McDonnell
- first_name: Tal
full_name: Ellenbogen, Tal
last_name: Ellenbogen
- first_name: Xiangang
full_name: Luo, Xiangang
last_name: Luo
- first_name: Mingbo
full_name: Pu, Mingbo
last_name: Pu
- first_name: Francisco J
full_name: Garcia-Vidal, Francisco J
last_name: Garcia-Vidal
- first_name: Liangliang
full_name: Liu, Liangliang
last_name: Liu
- first_name: Zhuo
full_name: Li, Zhuo
last_name: Li
- first_name: Wenxuan
full_name: Tang, Wenxuan
last_name: Tang
- first_name: Hui Feng
full_name: Ma, Hui Feng
last_name: Ma
- first_name: Jingjing
full_name: Zhang, Jingjing
last_name: Zhang
- first_name: Yu
full_name: Luo, Yu
last_name: Luo
- first_name: Xuanru
full_name: Zhang, Xuanru
last_name: Zhang
- first_name: Hao Chi
full_name: Zhang, Hao Chi
last_name: Zhang
- first_name: Pei Hang
full_name: He, Pei Hang
last_name: He
- first_name: Le Peng
full_name: Zhang, Le Peng
last_name: Zhang
- first_name: Xiang
full_name: Wan, Xiang
last_name: Wan
- first_name: Haotian
full_name: Wu, Haotian
last_name: Wu
- first_name: Shuo
full_name: Liu, Shuo
last_name: Liu
- first_name: Wei Xiang
full_name: Jiang, Wei Xiang
last_name: Jiang
- first_name: Xin Ge
full_name: Zhang, Xin Ge
last_name: Zhang
- first_name: Chengwei
full_name: Qiu, Chengwei
last_name: Qiu
- first_name: Qian
full_name: Ma, Qian
last_name: Ma
- first_name: Che
full_name: Liu, Che
last_name: Liu
- first_name: Long
full_name: Li, Long
last_name: Li
- first_name: Jiaqi
full_name: Han, Jiaqi
last_name: Han
- first_name: Lianlin
full_name: Li, Lianlin
last_name: Li
- first_name: Michele
full_name: Cotrufo, Michele
last_name: Cotrufo
- first_name: Christophe
full_name: Caloz, Christophe
last_name: Caloz
- first_name: Z.-L.
full_name: Deck-Léger, Z.-L.
last_name: Deck-Léger
- first_name: A.
full_name: Bahrami, A.
last_name: Bahrami
- first_name: O.
full_name: Céspedes, O.
last_name: Céspedes
- first_name: Emanuele
full_name: Galiffi, Emanuele
last_name: Galiffi
- first_name: P. A.
full_name: Huidobro, P. A.
last_name: Huidobro
- first_name: Qiang
full_name: Cheng, Qiang
last_name: Cheng
- first_name: Jun Yan
full_name: Dai, Jun Yan
last_name: Dai
- first_name: Jun Cheng
full_name: Ke, Jun Cheng
last_name: Ke
- first_name: Lei
full_name: Zhang, Lei
last_name: Zhang
- first_name: Vincenzo
full_name: Galdi, Vincenzo
last_name: Galdi
- first_name: Marco
full_name: Di Renzo, Marco
last_name: Di Renzo
citation:
ama: 'Cui TJ, Zhang S, Alu A, et al. Roadmap on electromagnetic metamaterials and
metasurfaces. Journal of Physics: Photonics. Published online 2024. doi:10.1088/2515-7647/ad1a3b'
apa: 'Cui, T. J., Zhang, S., Alu, A., Wegener, M., Pendry, J., Luo, J., Lai, Y.,
Wang, Z., Lin, X., Chen, H., Chen, P., Wu, R.-X., Yin, Y., Zhao, P., Chen, H.,
Li, Y., Zhou, Z., Engheta, N., Asadchy, V. S., … Di Renzo, M. (2024). Roadmap
on electromagnetic metamaterials and metasurfaces. Journal of Physics: Photonics.
https://doi.org/10.1088/2515-7647/ad1a3b'
bibtex: '@article{Cui_Zhang_Alu_Wegener_Pendry_Luo_Lai_Wang_Lin_Chen_et al._2024,
title={Roadmap on electromagnetic metamaterials and metasurfaces}, DOI={10.1088/2515-7647/ad1a3b},
journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Cui,
Tie Jun and Zhang, Shuang and Alu, Andrea and Wegener, Martin and Pendry, John
and Luo, Jie and Lai, Yun and Wang, Zuojia and Lin, Xiao and Chen, Hongsheng and
et al.}, year={2024} }'
chicago: 'Cui, Tie Jun, Shuang Zhang, Andrea Alu, Martin Wegener, John Pendry, Jie
Luo, Yun Lai, et al. “Roadmap on Electromagnetic Metamaterials and Metasurfaces.”
Journal of Physics: Photonics, 2024. https://doi.org/10.1088/2515-7647/ad1a3b.'
ieee: 'T. J. Cui et al., “Roadmap on electromagnetic metamaterials and metasurfaces,”
Journal of Physics: Photonics, 2024, doi: 10.1088/2515-7647/ad1a3b.'
mla: 'Cui, Tie Jun, et al. “Roadmap on Electromagnetic Metamaterials and Metasurfaces.”
Journal of Physics: Photonics, IOP Publishing, 2024, doi:10.1088/2515-7647/ad1a3b.'
short: 'T.J. Cui, S. Zhang, A. Alu, M. Wegener, J. Pendry, J. Luo, Y. Lai, Z. Wang,
X. Lin, H. Chen, P. Chen, R.-X. Wu, Y. Yin, P. Zhao, H. Chen, Y. Li, Z. Zhou,
N. Engheta, V.S. Asadchy, C. Simovski, S.A. Tretyakov, B. Yang, S.D. Campbell,
Y. Hao, D.H. Werner, S. Sun, L. Zhou, S. Xu, H.-B. Sun, Z. Zhou, Z. Li, G. Zheng,
X. Chen, T. Li, S.-N. Zhu, J. Zhou, J. Zhao, Z. Liu, Y. Zhang, Q. Zhang, M. Gu,
S. Xiao, Y. Liu, X. Zhang, Y. Tang, G. Li, T. Zentgraf, K. Koshelev, Y.S. Kivshar,
X. Li, T. Badloe, L. Huang, J. Rho, S. Wang, D.P. Tsai, A.Yu. Bykov, A.V. Krasavin,
A.V. Zayats, C. McDonnell, T. Ellenbogen, X. Luo, M. Pu, F.J. Garcia-Vidal, L.
Liu, Z. Li, W. Tang, H.F. Ma, J. Zhang, Y. Luo, X. Zhang, H.C. Zhang, P.H. He,
L.P. Zhang, X. Wan, H. Wu, S. Liu, W.X. Jiang, X.G. Zhang, C. Qiu, Q. Ma, C. Liu,
L. Li, J. Han, L. Li, M. Cotrufo, C. Caloz, Z.-L. Deck-Léger, A. Bahrami, O. Céspedes,
E. Galiffi, P.A. Huidobro, Q. Cheng, J.Y. Dai, J.C. Ke, L. Zhang, V. Galdi, M.
Di Renzo, Journal of Physics: Photonics (2024).'
date_created: 2024-02-20T06:58:48Z
date_updated: 2024-02-20T07:03:00Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1088/2515-7647/ad1a3b
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://iopscience.iop.org/article/10.1088/2515-7647/ad1a3b
oa: '1'
publication: 'Journal of Physics: Photonics'
publication_identifier:
issn:
- 2515-7647
publication_status: published
publisher: IOP Publishing
status: public
title: Roadmap on electromagnetic metamaterials and metasurfaces
type: journal_article
user_id: '30525'
year: '2024'
...
---
_id: '60023'
author:
- first_name: Helene
full_name: Wetter, Helene
last_name: Wetter
- first_name: Wenlong
full_name: Gao, Wenlong
last_name: Gao
- first_name: Falk
full_name: Rehberg, Falk
last_name: Rehberg
- first_name: Jan
full_name: Wingenbach, Jan
id: '69187'
last_name: Wingenbach
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Wetter H, Gao W, Rehberg F, Wingenbach J, Schumacher S, Zentgraf T. Dielectric
metasurface for wave-vector variant and circular polarization dependent transmission.
In: Proceedings of The 14th International Conference on Metamaterials, Photonic
Crystals and Plasmonics. ; 2024.'
apa: Wetter, H., Gao, W., Rehberg, F., Wingenbach, J., Schumacher, S., & Zentgraf,
T. (2024). Dielectric metasurface for wave-vector variant and circular polarization
dependent transmission. Proceedings of The 14th International Conference on
Metamaterials, Photonic Crystals and Plasmonics. META 2024 - The 14th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan.
bibtex: '@inproceedings{Wetter_Gao_Rehberg_Wingenbach_Schumacher_Zentgraf_2024,
title={Dielectric metasurface for wave-vector variant and circular polarization
dependent transmission}, booktitle={Proceedings of The 14th International Conference
on Metamaterials, Photonic Crystals and Plasmonics}, author={Wetter, Helene and
Gao, Wenlong and Rehberg, Falk and Wingenbach, Jan and Schumacher, Stefan and
Zentgraf, Thomas}, year={2024} }'
chicago: Wetter, Helene, Wenlong Gao, Falk Rehberg, Jan Wingenbach, Stefan Schumacher,
and Thomas Zentgraf. “Dielectric Metasurface for Wave-Vector Variant and Circular
Polarization Dependent Transmission.” In Proceedings of The 14th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, 2024.
ieee: H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, and T. Zentgraf,
“Dielectric metasurface for wave-vector variant and circular polarization dependent
transmission,” presented at the META 2024 - The 14th International Conference
on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan, 2024.
mla: Wetter, Helene, et al. “Dielectric Metasurface for Wave-Vector Variant and
Circular Polarization Dependent Transmission.” Proceedings of The 14th International
Conference on Metamaterials, Photonic Crystals and Plasmonics, 2024.
short: 'H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, T. Zentgraf,
in: Proceedings of The 14th International Conference on Metamaterials, Photonic
Crystals and Plasmonics, 2024.'
conference:
end_date: 2024-07-19
location: Toyama, Japan
name: META 2024 - The 14th International Conference on Metamaterials, Photonic Crystals
and Plasmonics
start_date: 2024-07-16
date_created: 2025-05-23T06:30:36Z
date_updated: 2025-05-23T06:34:16Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '164'
grant_number: '231447078'
name: 'TRR 142 - A09: TRR 142 - Erzeugung von Drei-Photonen-Zuständen mit On-Chip
Pumplichtunterdrückung in topologischen Wellenleitern (A09*)'
publication: Proceedings of The 14th International Conference on Metamaterials, Photonic
Crystals and Plasmonics
publication_identifier:
issn:
- 2429-1390
status: public
title: Dielectric metasurface for wave-vector variant and circular polarization dependent
transmission
type: conference
user_id: '30525'
year: '2024'
...
---
_id: '61255'
abstract:
- lang: eng
text: "Abstract\r\n Topological states
have been widely investigated in different types of systems and lattices. In the
present work, we report on topological edge states in double-wave (DW) chains,
which can be described by a generalized Aubry-André-Harper (AAH) model. For the
specific system of a driven-dissipative exciton polariton system we show that
in such potential chains, different types of edge states can form. For resonant
optical excitation, we further find that the optical nonlinearity leads to a multistability
of different edge states. This includes topologically protected edge states evolved
directly from individual linear eigenstates as well as additional edge states
that originate from nonlinearity-induced localization of bulk states. Extending
the system into two dimensions (2D) by stacking horizontal DW chains in the vertical
direction, we also create 2D multi-wave lattices. In such 2D lattices multiple
Su–Schrieffer–Heeger (SSH) chains appear along the vertical direction. The combination
of DW chains in the horizonal and SSH chains in the vertical direction then results
in the formation of higher-order topological insulator corner states. Multistable
corner states emerge in the nonlinear regime."
author:
- first_name: Tobias
full_name: Schneider, Tobias
last_name: Schneider
- first_name: Wenlong
full_name: Gao, Wenlong
id: '78853'
last_name: Gao
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
citation:
ama: Schneider T, Gao W, Zentgraf T, Schumacher S, Ma X. Topological edge and corner
states in coupled wave lattices in nonlinear polariton condensates. Nanophotonics.
2024;13(4):509-518. doi:10.1515/nanoph-2023-0556
apa: Schneider, T., Gao, W., Zentgraf, T., Schumacher, S., & Ma, X. (2024).
Topological edge and corner states in coupled wave lattices in nonlinear polariton
condensates. Nanophotonics, 13(4), 509–518. https://doi.org/10.1515/nanoph-2023-0556
bibtex: '@article{Schneider_Gao_Zentgraf_Schumacher_Ma_2024, title={Topological
edge and corner states in coupled wave lattices in nonlinear polariton condensates},
volume={13}, DOI={10.1515/nanoph-2023-0556},
number={4}, journal={Nanophotonics}, publisher={Walter de Gruyter GmbH}, author={Schneider,
Tobias and Gao, Wenlong and Zentgraf, Thomas and Schumacher, Stefan and Ma, Xuekai},
year={2024}, pages={509–518} }'
chicago: 'Schneider, Tobias, Wenlong Gao, Thomas Zentgraf, Stefan Schumacher, and
Xuekai Ma. “Topological Edge and Corner States in Coupled Wave Lattices in Nonlinear
Polariton Condensates.” Nanophotonics 13, no. 4 (2024): 509–18. https://doi.org/10.1515/nanoph-2023-0556.'
ieee: 'T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, and X. Ma, “Topological
edge and corner states in coupled wave lattices in nonlinear polariton condensates,”
Nanophotonics, vol. 13, no. 4, pp. 509–518, 2024, doi: 10.1515/nanoph-2023-0556.'
mla: Schneider, Tobias, et al. “Topological Edge and Corner States in Coupled Wave
Lattices in Nonlinear Polariton Condensates.” Nanophotonics, vol. 13, no.
4, Walter de Gruyter GmbH, 2024, pp. 509–18, doi:10.1515/nanoph-2023-0556.
short: T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, X. Ma, Nanophotonics 13
(2024) 509–518.
date_created: 2025-09-12T11:19:22Z
date_updated: 2025-09-12T11:22:41Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.1515/nanoph-2023-0556
intvolume: ' 13'
issue: '4'
language:
- iso: eng
page: 509-518
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '54'
name: TRR 142 - Project Area A
- _id: '55'
name: TRR 142 - Project Area B
- _id: '61'
name: 'TRR 142; TP A04: Nichtlineare Quantenprozesstomographie und Photonik mit
Polaritonen in Mikrokavitäten'
- _id: '170'
name: 'TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage
der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen'
publication: Nanophotonics
publication_identifier:
issn:
- 2192-8614
publication_status: published
publisher: Walter de Gruyter GmbH
status: public
title: Topological edge and corner states in coupled wave lattices in nonlinear polariton
condensates
type: journal_article
user_id: '16199'
volume: 13
year: '2024'
...