---
_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: '51204'
abstract:
- lang: eng
text: "Given a real semisimple connected Lie group $G$ and a discrete torsion-free\r\nsubgroup
$\\Gamma < G$ we prove a precise connection between growth rates of the\r\ngroup
$\\Gamma$, polyhedral bounds on the joint spectrum of the ring of\r\ninvariant
differential operators, and the decay of matrix coefficients. In\r\nparticular,
this allows us to completely characterize temperedness of\r\n$L^2(\\Gamma\\backslash
G)$ in this general setting."
author:
- first_name: Christopher
full_name: Lutsko, Christopher
last_name: Lutsko
- first_name: Tobias
full_name: Weich, Tobias
id: '49178'
last_name: Weich
orcid: 0000-0002-9648-6919
- first_name: Lasse Lennart
full_name: Wolf, Lasse Lennart
id: '45027'
last_name: Wolf
orcid: 0000-0001-8893-2045
citation:
ama: Lutsko C, Weich T, Wolf LL. Polyhedral bounds on the joint spectrum and temperedness
of locally symmetric spaces. Duke Math Journal . 2026;(to appear).
apa: Lutsko, C., Weich, T., & Wolf, L. L. (2026). Polyhedral bounds on the joint
spectrum and temperedness of locally symmetric spaces. Duke Math. Journal
, (to appear).
bibtex: '@article{Lutsko_Weich_Wolf_2026, title={Polyhedral bounds on the joint
spectrum and temperedness of locally symmetric spaces}, volume={(to appear)},
journal={Duke Math. Journal }, author={Lutsko, Christopher and Weich, Tobias and
Wolf, Lasse Lennart}, year={2026} }'
chicago: Lutsko, Christopher, Tobias Weich, and Lasse Lennart Wolf. “Polyhedral
Bounds on the Joint Spectrum and Temperedness of Locally Symmetric Spaces.” Duke
Math. Journal (to appear) (2026).
ieee: C. Lutsko, T. Weich, and L. L. Wolf, “Polyhedral bounds on the joint spectrum
and temperedness of locally symmetric spaces,” Duke Math. Journal , vol.
(to appear), 2026.
mla: Lutsko, Christopher, et al. “Polyhedral Bounds on the Joint Spectrum and Temperedness
of Locally Symmetric Spaces.” Duke Math. Journal , vol. (to appear), 2026.
short: C. Lutsko, T. Weich, L.L. Wolf, Duke Math. Journal (to appear) (2026).
date_created: 2024-02-06T20:35:36Z
date_updated: 2026-02-18T10:37:47Z
department:
- _id: '10'
- _id: '623'
- _id: '548'
external_id:
arxiv:
- '2402.02530'
language:
- iso: eng
publication: 'Duke Math. Journal '
status: public
title: Polyhedral bounds on the joint spectrum and temperedness of locally symmetric
spaces
type: journal_article
user_id: '49178'
volume: (to appear)
year: '2026'
...
---
_id: '64864'
abstract:
- lang: eng
text: Probing novel properties, arising from twisted interfaces, has traditionally
relied on the stacking of exfoliated two-dimensional materials and the spontaneous
formation of van der Waals bonds. So far, investigations involving intimate covalent
or ionic bonds have not been a focus. Yet, we show here that an established technique,
involving thermocompressional wafer bonding, works well for creating twisted non-van
der Waals interfaces. We have successfully bonded z-cut lithium niobate single
crystals to create ferroelectric oxide interfaces with strong polar discontinuities
and have mapped the associated emergent interfacial conductivity. In some instances,
a dramatic change in microstructure occurs, involving local dipolar switching.
A twist-induced collapse in the capability of the system to effec8tively screen
interfacial bound charge is implied. Importantly, this only occurs around specific
moiré twist angles with sparse coincident lattices and associated short-range
aperiodicity. In quasicrystals, aperiodicity is known to induce pseudo-bandgaps
and we suspect a similar phenomenon here.
article_number: '1842'
article_type: original
author:
- first_name: Andrew
full_name: Rogers, Andrew
last_name: Rogers
- first_name: Kristina
full_name: Holsgrove, Kristina
last_name: Holsgrove
- first_name: Nils A.
full_name: Schäfer, Nils A.
last_name: Schäfer
- first_name: Boris
full_name: Koppitz, Boris
last_name: Koppitz
- first_name: Conor J.
full_name: McCluskey, Conor J.
last_name: McCluskey
- first_name: Shivani
full_name: Yedama, Shivani
last_name: Yedama
- first_name: Ronan
full_name: Lynch, Ronan
last_name: Lynch
- first_name: Keelan
full_name: Sloan, Keelan
last_name: Sloan
- first_name: Barry
full_name: Porter, Barry
last_name: Porter
- first_name: Adam
full_name: Sykes, Adam
last_name: Sykes
- first_name: Alex
full_name: Catalan Daniels, Alex
last_name: Catalan Daniels
- first_name: Romualdo S.
full_name: Silva, Romualdo S.
last_name: Silva
- first_name: Flavio Y.
full_name: Bruno, Flavio Y.
last_name: Bruno
- first_name: Sam D.
full_name: Seddon, Sam D.
last_name: Seddon
- first_name: Haidong
full_name: Lu, Haidong
last_name: Lu
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Christa
full_name: Fink, Christa
last_name: Fink
- first_name: Philipp
full_name: Fahler-Muenzer, Philipp
last_name: Fahler-Muenzer
- first_name: Sarah
full_name: Fearn, Sarah
last_name: Fearn
- first_name: Sandrine E. M.
full_name: Heutz, Sandrine E. M.
last_name: Heutz
- first_name: Marios
full_name: Hadjimichael, Marios
last_name: Hadjimichael
- first_name: Quentin M.
full_name: Ramasse, Quentin M.
last_name: Ramasse
- first_name: Marin
full_name: Alexe, Marin
last_name: Alexe
- first_name: Amit
full_name: Kumar, Amit
last_name: Kumar
- first_name: Raymond G. P.
full_name: McQuaid, Raymond G. P.
last_name: McQuaid
- first_name: Alexei
full_name: Gruverman, Alexei
last_name: Gruverman
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
- first_name: J. Marty
full_name: Gregg, J. Marty
last_name: Gregg
citation:
ama: Rogers A, Holsgrove K, Schäfer NA, et al. Polar discontinuities, emergent conductivity,
and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces.
Nature Communications. 2026;17(1). doi:10.1038/s41467-026-68553-7
apa: Rogers, A., Holsgrove, K., Schäfer, N. A., Koppitz, B., McCluskey, C. J., Yedama,
S., Lynch, R., Sloan, K., Porter, B., Sykes, A., Catalan Daniels, A., Silva, R.
S., Bruno, F. Y., Seddon, S. D., Lu, H., Rüsing, M., Fink, C., Fahler-Muenzer,
P., Fearn, S., … Gregg, J. M. (2026). Polar discontinuities, emergent conductivity,
and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces.
Nature Communications, 17(1), Article 1842. https://doi.org/10.1038/s41467-026-68553-7
bibtex: '@article{Rogers_Holsgrove_Schäfer_Koppitz_McCluskey_Yedama_Lynch_Sloan_Porter_Sykes_et
al._2026, title={Polar discontinuities, emergent conductivity, and critical twist-angle-dependent
behaviour at wafer-bonded ferroelectric interfaces}, volume={17}, DOI={10.1038/s41467-026-68553-7},
number={11842}, journal={Nature Communications}, publisher={Springer Science and
Business Media LLC}, author={Rogers, Andrew and Holsgrove, Kristina and Schäfer,
Nils A. and Koppitz, Boris and McCluskey, Conor J. and Yedama, Shivani and Lynch,
Ronan and Sloan, Keelan and Porter, Barry and Sykes, Adam and et al.}, year={2026}
}'
chicago: Rogers, Andrew, Kristina Holsgrove, Nils A. Schäfer, Boris Koppitz, Conor
J. McCluskey, Shivani Yedama, Ronan Lynch, et al. “Polar Discontinuities, Emergent
Conductivity, and Critical Twist-Angle-Dependent Behaviour at Wafer-Bonded Ferroelectric
Interfaces.” Nature Communications 17, no. 1 (2026). https://doi.org/10.1038/s41467-026-68553-7.
ieee: 'A. Rogers et al., “Polar discontinuities, emergent conductivity, and
critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces,”
Nature Communications, vol. 17, no. 1, Art. no. 1842, 2026, doi: 10.1038/s41467-026-68553-7.'
mla: Rogers, Andrew, et al. “Polar Discontinuities, Emergent Conductivity, and Critical
Twist-Angle-Dependent Behaviour at Wafer-Bonded Ferroelectric Interfaces.” Nature
Communications, vol. 17, no. 1, 1842, Springer Science and Business Media
LLC, 2026, doi:10.1038/s41467-026-68553-7.
short: A. Rogers, K. Holsgrove, N.A. Schäfer, B. Koppitz, C.J. McCluskey, S. Yedama,
R. Lynch, K. Sloan, B. Porter, A. Sykes, A. Catalan Daniels, R.S. Silva, F.Y.
Bruno, S.D. Seddon, H. Lu, M. Rüsing, C. Fink, P. Fahler-Muenzer, S. Fearn, S.E.M.
Heutz, M. Hadjimichael, Q.M. Ramasse, M. Alexe, A. Kumar, R.G.P. McQuaid, A. Gruverman,
S. Sanna, L.M. Eng, J.M. Gregg, Nature Communications 17 (2026).
date_created: 2026-03-08T09:20:13Z
date_updated: 2026-03-08T09:22:25Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1038/s41467-026-68553-7
intvolume: ' 17'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.nature.com/articles/s41467-026-68553-7
oa: '1'
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Polar discontinuities, emergent conductivity, and critical twist-angle-dependent
behaviour at wafer-bonded ferroelectric interfaces
type: journal_article
user_id: '22501'
volume: 17
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: '63531'
author:
- first_name: Siddharth
full_name: Doshi, Siddharth
last_name: Doshi
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
- first_name: Gerwin
full_name: Dijk, Gerwin
last_name: Dijk
- first_name: Johan
full_name: Carlström, Johan
last_name: Carlström
- first_name: Jennifer E.
full_name: Ortiz-Cárdenas, Jennifer E.
last_name: Ortiz-Cárdenas
- first_name: Peter
full_name: Suzuki, Peter
last_name: Suzuki
- first_name: Bohan
full_name: Li, Bohan
last_name: Li
- first_name: Polly M.
full_name: Fordyce, Polly M.
last_name: Fordyce
- first_name: Alberto
full_name: Salleo, Alberto
last_name: Salleo
- first_name: Nicholas A.
full_name: Melosh, Nicholas A.
last_name: Melosh
- first_name: Mark L.
full_name: Brongersma, Mark L.
last_name: Brongersma
citation:
ama: Doshi S, Güsken NA, Dijk G, et al. Soft photonic skins with dynamic texture
and colour control. Nature. 2026;649(8096):345-352. doi:10.1038/s41586-025-09948-2
apa: Doshi, S., Güsken, N. A., Dijk, G., Carlström, J., Ortiz-Cárdenas, J. E., Suzuki,
P., Li, B., Fordyce, P. M., Salleo, A., Melosh, N. A., & Brongersma, M. L.
(2026). Soft photonic skins with dynamic texture and colour control. Nature,
649(8096), 345–352. https://doi.org/10.1038/s41586-025-09948-2
bibtex: '@article{Doshi_Güsken_Dijk_Carlström_Ortiz-Cárdenas_Suzuki_Li_Fordyce_Salleo_Melosh_et
al._2026, title={Soft photonic skins with dynamic texture and colour control},
volume={649}, DOI={10.1038/s41586-025-09948-2},
number={8096}, journal={Nature}, publisher={Springer Science and Business Media
LLC}, author={Doshi, Siddharth and Güsken, Nicholas Alexander and Dijk, Gerwin
and Carlström, Johan and Ortiz-Cárdenas, Jennifer E. and Suzuki, Peter and Li,
Bohan and Fordyce, Polly M. and Salleo, Alberto and Melosh, Nicholas A. and et
al.}, year={2026}, pages={345–352} }'
chicago: 'Doshi, Siddharth, Nicholas Alexander Güsken, Gerwin Dijk, Johan Carlström,
Jennifer E. Ortiz-Cárdenas, Peter Suzuki, Bohan Li, et al. “Soft Photonic Skins
with Dynamic Texture and Colour Control.” Nature 649, no. 8096 (2026):
345–52. https://doi.org/10.1038/s41586-025-09948-2.'
ieee: 'S. Doshi et al., “Soft photonic skins with dynamic texture and colour
control,” Nature, vol. 649, no. 8096, pp. 345–352, 2026, doi: 10.1038/s41586-025-09948-2.'
mla: Doshi, Siddharth, et al. “Soft Photonic Skins with Dynamic Texture and Colour
Control.” Nature, vol. 649, no. 8096, Springer Science and Business Media
LLC, 2026, pp. 345–52, doi:10.1038/s41586-025-09948-2.
short: S. Doshi, N.A. Güsken, G. Dijk, J. Carlström, J.E. Ortiz-Cárdenas, P. Suzuki,
B. Li, P.M. Fordyce, A. Salleo, N.A. Melosh, M.L. Brongersma, Nature 649 (2026)
345–352.
date_created: 2026-01-08T12:55:30Z
date_updated: 2026-01-08T13:22:16Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: 10.1038/s41586-025-09948-2
intvolume: ' 649'
issue: '8096'
language:
- iso: eng
page: 345-352
publication: Nature
publication_identifier:
issn:
- 0028-0836
- 1476-4687
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Soft photonic skins with dynamic texture and colour control
type: journal_article
user_id: '112030'
volume: 649
year: '2026'
...
---
_id: '63532'
abstract:
- lang: eng
text: Room-temperature lasing is a key milestone in the development of miniaturized
optoelectronic and photonic devices. We present a simple approach to synthesize
phase-pure quasi-2D layered tin perovskite nanowires with varying quantum well
thicknesses (n = 1 to 4). By incorporating a new organic spacer capable of forming
a hydrogen-bonded organic framework, this method promoted anisotropic crystal
growth and enhanced lattice rigidity. Furthermore, introducing molecular intercalants
enabled controlled crystallization into well-defined nanowires that function as
Fabry–Pérot cavities. Cavities made from n = 2 to 4 perovskites support efficient
and robust near-infrared, room-temperature optically pumped lasing with the threshold
as low as 75.8 μJ/cm2, cavity quality factor over 3000, and negligible degradation
over 106 pulses. A cleaved coupled nanolaser was fabricated as a proof-of-concept
device for photonic applications.
article_type: original
author:
- first_name: Jeong Hui
full_name: Kim, Jeong Hui
last_name: Kim
- first_name: Jeffrey
full_name: Simon, Jeffrey
last_name: Simon
- first_name: Wenhao
full_name: Shao, Wenhao
last_name: Shao
- first_name: Zhichen
full_name: Nian, Zhichen
last_name: Nian
- first_name: Hanjun
full_name: Yang, Hanjun
last_name: Yang
- first_name: Peigang
full_name: Chen, Peigang
last_name: Chen
- first_name: Brandon
full_name: Triplett, Brandon
last_name: Triplett
- first_name: Zhixu
full_name: Li, Zhixu
last_name: Li
- first_name: Pengfei
full_name: Wu, Pengfei
last_name: Wu
- first_name: Yuheng
full_name: Chen, Yuheng
last_name: Chen
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Karthik
full_name: Pagadala, Karthik
last_name: Pagadala
- first_name: Kyu Ri
full_name: Choi, Kyu Ri
last_name: Choi
- first_name: Colton B.
full_name: Fruhling, Colton B.
last_name: Fruhling
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Alexandra
full_name: Boltasseva, Alexandra
last_name: Boltasseva
- first_name: Brett M.
full_name: Savoie, Brett M.
last_name: Savoie
- first_name: Vladimir M.
full_name: Shalaev, Vladimir M.
last_name: Shalaev
- first_name: Letian
full_name: Dou, Letian
last_name: Dou
citation:
ama: Kim JH, Simon J, Shao W, et al. Hydrogen-Bonded Organic Framework Enables Phase-Pure
Layered Tin Perovskite Nanowires for Room-Temperature Lasing. Journal of the
American Chemical Society. Published online 2026:jacs.5c14431. doi:10.1021/jacs.5c14431
apa: Kim, J. H., Simon, J., Shao, W., Nian, Z., Yang, H., Chen, P., Triplett, B.,
Li, Z., Wu, P., Chen, Y., Farheen, H., Pagadala, K., Choi, K. R., Fruhling, C.
B., Förstner, J., Boltasseva, A., Savoie, B. M., Shalaev, V. M., & Dou, L.
(2026). Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite
Nanowires for Room-Temperature Lasing. Journal of the American Chemical Society,
jacs.5c14431. https://doi.org/10.1021/jacs.5c14431
bibtex: '@article{Kim_Simon_Shao_Nian_Yang_Chen_Triplett_Li_Wu_Chen_et al._2026,
title={Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite
Nanowires for Room-Temperature Lasing}, DOI={10.1021/jacs.5c14431},
journal={Journal of the American Chemical Society}, publisher={American Chemical
Society (ACS)}, author={Kim, Jeong Hui and Simon, Jeffrey and Shao, Wenhao and
Nian, Zhichen and Yang, Hanjun and Chen, Peigang and Triplett, Brandon and Li,
Zhixu and Wu, Pengfei and Chen, Yuheng and et al.}, year={2026}, pages={jacs.5c14431}
}'
chicago: Kim, Jeong Hui, Jeffrey Simon, Wenhao Shao, Zhichen Nian, Hanjun Yang,
Peigang Chen, Brandon Triplett, et al. “Hydrogen-Bonded Organic Framework Enables
Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing.” Journal
of the American Chemical Society, 2026, jacs.5c14431. https://doi.org/10.1021/jacs.5c14431.
ieee: 'J. H. Kim et al., “Hydrogen-Bonded Organic Framework Enables Phase-Pure
Layered Tin Perovskite Nanowires for Room-Temperature Lasing,” Journal of the
American Chemical Society, p. jacs.5c14431, 2026, doi: 10.1021/jacs.5c14431.'
mla: Kim, Jeong Hui, et al. “Hydrogen-Bonded Organic Framework Enables Phase-Pure
Layered Tin Perovskite Nanowires for Room-Temperature Lasing.” Journal of the
American Chemical Society, American Chemical Society (ACS), 2026, p. jacs.5c14431,
doi:10.1021/jacs.5c14431.
short: J.H. Kim, J. Simon, W. Shao, Z. Nian, H. Yang, P. Chen, B. Triplett, Z. Li,
P. Wu, Y. Chen, H. Farheen, K. Pagadala, K.R. Choi, C.B. Fruhling, J. Förstner,
A. Boltasseva, B.M. Savoie, V.M. Shalaev, L. Dou, Journal of the American Chemical
Society (2026) jacs.5c14431.
date_created: 2026-01-08T20:48:26Z
date_updated: 2026-01-08T20:54:59Z
ddc:
- '530'
department:
- _id: '61'
- _id: '623'
doi: 10.1021/jacs.5c14431
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2026-01-08T20:51:12Z
date_updated: 2026-01-08T20:51:12Z
file_id: '63533'
file_name: 2026-01 Jeong-Hui-Kim - JACS - Hydrogen-Bonded Organic Framework Enables
Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing (with
Purdue).pdf
file_size: 5453427
relation: main_file
success: 1
file_date_updated: 2026-01-08T20:51:12Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: jacs.5c14431
publication: Journal of the American Chemical Society
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite
Nanowires for Room-Temperature Lasing
type: journal_article
user_id: '158'
year: '2026'
...
---
_id: '64877'
author:
- first_name: Behnood
full_name: Taheri, Behnood
last_name: Taheri
- first_name: Denis
full_name: Kopylov, Denis
id: '98502'
last_name: Kopylov
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
citation:
ama: Taheri B, Kopylov D, Hammer M, Meier T, Förstner J, Sharapova PR. Gain-induced
spectral non-degeneracy in type-II parametric down-conversion. arXiv. Published
online 2026. doi:10.48550/ARXIV.2603.01656
apa: Taheri, B., Kopylov, D., Hammer, M., Meier, T., Förstner, J., & Sharapova,
P. R. (2026). Gain-induced spectral non-degeneracy in type-II parametric down-conversion.
ArXiv. https://doi.org/10.48550/ARXIV.2603.01656
bibtex: '@article{Taheri_Kopylov_Hammer_Meier_Förstner_Sharapova_2026, title={Gain-induced
spectral non-degeneracy in type-II parametric down-conversion}, DOI={10.48550/ARXIV.2603.01656},
journal={arXiv}, author={Taheri, Behnood and Kopylov, Denis and Hammer, Manfred
and Meier, Torsten and Förstner, Jens and Sharapova, Polina R.}, year={2026} }'
chicago: Taheri, Behnood, Denis Kopylov, Manfred Hammer, Torsten Meier, Jens Förstner,
and Polina R. Sharapova. “Gain-Induced Spectral Non-Degeneracy in Type-II Parametric
down-Conversion.” ArXiv, 2026. https://doi.org/10.48550/ARXIV.2603.01656.
ieee: 'B. Taheri, D. Kopylov, M. Hammer, T. Meier, J. Förstner, and P. R. Sharapova,
“Gain-induced spectral non-degeneracy in type-II parametric down-conversion,”
arXiv, 2026, doi: 10.48550/ARXIV.2603.01656.'
mla: Taheri, Behnood, et al. “Gain-Induced Spectral Non-Degeneracy in Type-II Parametric
down-Conversion.” ArXiv, 2026, doi:10.48550/ARXIV.2603.01656.
short: B. Taheri, D. Kopylov, M. Hammer, T. Meier, J. Förstner, P.R. Sharapova,
ArXiv (2026).
date_created: 2026-03-10T15:37:22Z
date_updated: 2026-03-10T15:41:18Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '34'
- _id: '61'
- _id: '230'
- _id: '623'
- _id: '429'
doi: 10.48550/ARXIV.2603.01656
language:
- iso: eng
project:
- _id: '168'
name: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat
(B07*)
- _id: '56'
name: TRR 142 - Project Area C
- _id: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
publication: arXiv
status: public
title: Gain-induced spectral non-degeneracy in type-II parametric down-conversion
type: journal_article
user_id: '16199'
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: '65094'
abstract:
- lang: eng
text: "\r\n The development of practical sensors for
optical coherence tomography (OCT) with undetected photons requires miniaturization
via integration. To be practical, these sensors must exhibit a large spectral
bandwidth and a high brightness, which are linked to a high axial resolution and
a sufficient signal-to-noise ratio, respectively. Here, we combine these requirements
in a scheme for OCT measurements with undetected photons based on nonlinear\r\n
\ \r\n
\ Ti\r\n :\r\n
\ \r\n \r\n Li\r\n
\ Nb\r\n O\r\n
\ \r\n 3\r\n
\ \r\n \r\n waveguides.
We investigate the performance benchmarks of the commonly used SU(1,1) scheme
in comparison to an induced-coherence scheme and find that the latter is actually
better suited when implementing measurements with undetected photons in integrated
systems. In both schemes, we perform pump-gain optimization and OCT measurements
with undetected photons with an axial resolution as low as\r\n \r\n 28\r\n
\ \r\n μ\r\n \r\n m\r\n \r\n \r\n
\ .\r\n "
article_number: '034031'
author:
- first_name: Franz
full_name: Roeder, Franz
id: '88149'
last_name: Roeder
- first_name: René
full_name: Pollmann, René
id: '78890'
last_name: Pollmann
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Roeder F, Pollmann R, Quiring V, Eigner C, Brecht B, Silberhorn C. Toward integrated
sensors for optimized optical coherence tomography with undetected photons. Physical
Review Applied. 2026;25(3). doi:10.1103/cwsx-42c4
apa: Roeder, F., Pollmann, R., Quiring, V., Eigner, C., Brecht, B., & Silberhorn,
C. (2026). Toward integrated sensors for optimized optical coherence tomography
with undetected photons. Physical Review Applied, 25(3), Article
034031. https://doi.org/10.1103/cwsx-42c4
bibtex: '@article{Roeder_Pollmann_Quiring_Eigner_Brecht_Silberhorn_2026, title={Toward
integrated sensors for optimized optical coherence tomography with undetected
photons}, volume={25}, DOI={10.1103/cwsx-42c4},
number={3034031}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Roeder, Franz and Pollmann, René and Quiring, Viktor and
Eigner, Christof and Brecht, Benjamin and Silberhorn, Christine}, year={2026}
}'
chicago: Roeder, Franz, René Pollmann, Viktor Quiring, Christof Eigner, Benjamin
Brecht, and Christine Silberhorn. “Toward Integrated Sensors for Optimized Optical
Coherence Tomography with Undetected Photons.” Physical Review Applied
25, no. 3 (2026). https://doi.org/10.1103/cwsx-42c4.
ieee: 'F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, and C. Silberhorn,
“Toward integrated sensors for optimized optical coherence tomography with undetected
photons,” Physical Review Applied, vol. 25, no. 3, Art. no. 034031, 2026,
doi: 10.1103/cwsx-42c4.'
mla: Roeder, Franz, et al. “Toward Integrated Sensors for Optimized Optical Coherence
Tomography with Undetected Photons.” Physical Review Applied, vol. 25,
no. 3, 034031, American Physical Society (APS), 2026, doi:10.1103/cwsx-42c4.
short: F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, C. Silberhorn,
Physical Review Applied 25 (2026).
date_created: 2026-03-23T12:28:33Z
date_updated: 2026-03-25T07:59:04Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1103/cwsx-42c4
intvolume: ' 25'
issue: '3'
language:
- iso: eng
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Toward integrated sensors for optimized optical coherence tomography with undetected
photons
type: journal_article
user_id: '27150'
volume: 25
year: '2026'
...
---
_id: '65096'
abstract:
- lang: eng
text: "\r\n Precise measurements of both the arrival
time and carrier frequency of light pulses are essential for time–frequency-encoded
quantum technologies. Quantum mechanics, however, imposes fundamental limits on
the simultaneous determination of these quantities. In this work, we derive and
experimentally verify the quantum uncertainty bounds governing joint time–frequency
measurements. We show that when detection is restricted to finite time windows,
the problem is naturally described by a quantum rotor, rendering the commonly
used Heisenberg uncertainty relation inapplicable. We further propose an optimal
detection scheme that saturates these fundamental limits. By sampling the\r\n
\ Q\r\n -function,
we demonstrate the reconstruction of the Wigner function beyond the harmonic oscillator.
Using an experimental implementation based on a quantum pulse gate, we confirm
that the proposed scheme approaches the ultimate quantum limit for simultaneous
time–frequency measurements. These results provide a framework for joint time–frequency
detection with direct implications for precision measurements and quantum information
processing.\r\n "
article_number: '548'
author:
- first_name: Patrick Fabian
full_name: Folge, Patrick Fabian
id: '88605'
last_name: Folge
- first_name: Laura Maria
full_name: Serino, Laura Maria
id: '88242'
last_name: Serino
- first_name: Ladislav
full_name: Mišta, Ladislav
last_name: Mišta
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Jaroslav
full_name: Řeháček, Jaroslav
last_name: Řeháček
- first_name: Zdeněk
full_name: Hradil, Zdeněk
last_name: Hradil
citation:
ama: Folge PF, Serino LM, Mišta L, et al. Quantum-limited detection of the arrival
time and the carrier frequency of time-dependent signals. Optica. 2026;13(3).
doi:10.1364/optica.579459
apa: Folge, P. F., Serino, L. M., Mišta, L., Brecht, B., Silberhorn, C., Řeháček,
J., & Hradil, Z. (2026). Quantum-limited detection of the arrival time and
the carrier frequency of time-dependent signals. Optica, 13(3),
Article 548. https://doi.org/10.1364/optica.579459
bibtex: '@article{Folge_Serino_Mišta_Brecht_Silberhorn_Řeháček_Hradil_2026, title={Quantum-limited
detection of the arrival time and the carrier frequency of time-dependent signals},
volume={13}, DOI={10.1364/optica.579459},
number={3548}, journal={Optica}, publisher={Optica Publishing Group}, author={Folge,
Patrick Fabian and Serino, Laura Maria and Mišta, Ladislav and Brecht, Benjamin
and Silberhorn, Christine and Řeháček, Jaroslav and Hradil, Zdeněk}, year={2026}
}'
chicago: Folge, Patrick Fabian, Laura Maria Serino, Ladislav Mišta, Benjamin Brecht,
Christine Silberhorn, Jaroslav Řeháček, and Zdeněk Hradil. “Quantum-Limited Detection
of the Arrival Time and the Carrier Frequency of Time-Dependent Signals.” Optica
13, no. 3 (2026). https://doi.org/10.1364/optica.579459.
ieee: 'P. F. Folge et al., “Quantum-limited detection of the arrival time
and the carrier frequency of time-dependent signals,” Optica, vol. 13,
no. 3, Art. no. 548, 2026, doi: 10.1364/optica.579459.'
mla: Folge, Patrick Fabian, et al. “Quantum-Limited Detection of the Arrival Time
and the Carrier Frequency of Time-Dependent Signals.” Optica, vol. 13,
no. 3, 548, Optica Publishing Group, 2026, doi:10.1364/optica.579459.
short: P.F. Folge, L.M. Serino, L. Mišta, B. Brecht, C. Silberhorn, J. Řeháček,
Z. Hradil, Optica 13 (2026).
date_created: 2026-03-23T12:30:02Z
date_updated: 2026-03-25T07:59:23Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1364/optica.579459
intvolume: ' 13'
issue: '3'
language:
- iso: eng
publication: Optica
publication_identifier:
issn:
- 2334-2536
publication_status: published
publisher: Optica Publishing Group
status: public
title: Quantum-limited detection of the arrival time and the carrier frequency of
time-dependent signals
type: journal_article
user_id: '27150'
volume: 13
year: '2026'
...
---
_id: '63451'
abstract:
- lang: eng
text: Superconducting nanowire single-photon detectors (SNSPDs) can enable
photon-number resolution (PNR) based on accurate measurements of the detector’s
response time to few-photon optical pulses. In this work, we investigate the impact
of the optical pulse shape and duration on the accuracy of this method. We find
that Gaussian temporal pulse shapes yield cleaner arrival-time histograms and,
thus, more accurate PNR, compared to bandpass-filtered pulses of equal bandwidth.
For low system jitter and an optical pulse duration comparable to the other jitter
contributions, photon numbers can be discriminated in our system with a commercial
SNSPD. At 60 ps optical pulse duration, photon-number discrimination is significantly
reduced. Furthermore, we highlight the importance of using the correct arrival-time
histogram model when analyzing photon-number assignment. Using exponentially modified
Gaussian distributions, instead of the commonly used Gaussian distributions, we
can more accurately determine photon-number misidentification probabilities. Finally,
we reconstruct the positive operator-valued measures of the detector, revealing
sharp features that indicate the intrinsic PNR capabilities.
article_number: '016102'
author:
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Isabell
full_name: Mischke, Isabell
last_name: Mischke
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Schapeler T, Mischke I, Schlue F, et al. Practical considerations for assignment
of photon numbers with SNSPDs. APL Quantum. 2026;3(1). doi:10.1063/5.0304127
apa: Schapeler, T., Mischke, I., Schlue, F., Stefszky, M., Brecht, B., Silberhorn,
C., & Bartley, T. (2026). Practical considerations for assignment of photon
numbers with SNSPDs. APL Quantum, 3(1), Article 016102. https://doi.org/10.1063/5.0304127
bibtex: '@article{Schapeler_Mischke_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2026,
title={Practical considerations for assignment of photon numbers with SNSPDs},
volume={3}, DOI={10.1063/5.0304127},
number={1016102}, journal={APL Quantum}, publisher={AIP Publishing}, author={Schapeler,
Timon and Mischke, Isabell and Schlue, Fabian and Stefszky, Michael and Brecht,
Benjamin and Silberhorn, Christine and Bartley, Tim}, year={2026} }'
chicago: Schapeler, Timon, Isabell Mischke, Fabian Schlue, Michael Stefszky, Benjamin
Brecht, Christine Silberhorn, and Tim Bartley. “Practical Considerations for Assignment
of Photon Numbers with SNSPDs.” APL Quantum 3, no. 1 (2026). https://doi.org/10.1063/5.0304127.
ieee: 'T. Schapeler et al., “Practical considerations for assignment of photon
numbers with SNSPDs,” APL Quantum, vol. 3, no. 1, Art. no. 016102, 2026,
doi: 10.1063/5.0304127.'
mla: Schapeler, Timon, et al. “Practical Considerations for Assignment of Photon
Numbers with SNSPDs.” APL Quantum, vol. 3, no. 1, 016102, AIP Publishing,
2026, doi:10.1063/5.0304127.
short: T. Schapeler, I. Mischke, F. Schlue, M. Stefszky, B. Brecht, C. Silberhorn,
T. Bartley, APL Quantum 3 (2026).
date_created: 2026-01-05T10:00:58Z
date_updated: 2026-03-25T08:00:27Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1063/5.0304127
intvolume: ' 3'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '191'
name: 'PhoQuant: Photonische Quantencomputer - Quantencomputing Testplattform'
- _id: '239'
name: 'ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array Detectors
in Low-Light Applications'
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Practical considerations for assignment of photon numbers with SNSPDs
type: journal_article
user_id: '27150'
volume: 3
year: '2026'
...
---
_id: '65095'
abstract:
- lang: eng
text: "\r\n We provide experimental validation of tight
entropic uncertainty relations for the Shannon entropies of observables with mutually
unbiased eigenstates in high dimensions. In particular, we address the cases of
dimensions\r\n \r\n
\ \r\n d\r\n =\r\n
\ 3\r\n \r\n
\ \r\n , 4, and 5 and consider from
2 to\r\n \r\n
\ \r\n d\r\n +\r\n
\ 1\r\n \r\n
\ \r\n mutually unbiased bases.
The experiment is based on pulsed frequency bins measured with a multioutput quantum
pulse gate, which can perform projective measurements on a complete high-dimensional
basis in the time-frequency domain. Our results fit the theoretical predictions:
the bound on the sum of the entropies is never violated and is saturated by the
states that minimize the uncertainty relations.\r\n "
article_number: '032420'
author:
- first_name: Laura Maria
full_name: Serino, Laura Maria
id: '88242'
last_name: Serino
- first_name: Giovanni
full_name: Chesi, Giovanni
last_name: Chesi
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Lorenzo
full_name: Maccone, Lorenzo
last_name: Maccone
- first_name: Chiara
full_name: Macchiavello, Chiara
last_name: Macchiavello
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Serino LM, Chesi G, Brecht B, Maccone L, Macchiavello C, Silberhorn C. Experimental
entropic uncertainty relations in dimensions three to five. Physical Review
A. 2026;113(3). doi:10.1103/f6c4-jtlc
apa: Serino, L. M., Chesi, G., Brecht, B., Maccone, L., Macchiavello, C., &
Silberhorn, C. (2026). Experimental entropic uncertainty relations in dimensions
three to five. Physical Review A, 113(3), Article 032420. https://doi.org/10.1103/f6c4-jtlc
bibtex: '@article{Serino_Chesi_Brecht_Maccone_Macchiavello_Silberhorn_2026, title={Experimental
entropic uncertainty relations in dimensions three to five}, volume={113}, DOI={10.1103/f6c4-jtlc}, number={3032420},
journal={Physical Review A}, publisher={American Physical Society (APS)}, author={Serino,
Laura Maria and Chesi, Giovanni and Brecht, Benjamin and Maccone, Lorenzo and
Macchiavello, Chiara and Silberhorn, Christine}, year={2026} }'
chicago: Serino, Laura Maria, Giovanni Chesi, Benjamin Brecht, Lorenzo Maccone,
Chiara Macchiavello, and Christine Silberhorn. “Experimental Entropic Uncertainty
Relations in Dimensions Three to Five.” Physical Review A 113, no. 3 (2026).
https://doi.org/10.1103/f6c4-jtlc.
ieee: 'L. M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, and C. Silberhorn,
“Experimental entropic uncertainty relations in dimensions three to five,” Physical
Review A, vol. 113, no. 3, Art. no. 032420, 2026, doi: 10.1103/f6c4-jtlc.'
mla: Serino, Laura Maria, et al. “Experimental Entropic Uncertainty Relations in
Dimensions Three to Five.” Physical Review A, vol. 113, no. 3, 032420,
American Physical Society (APS), 2026, doi:10.1103/f6c4-jtlc.
short: L.M. Serino, G. Chesi, B. Brecht, L. Maccone, C. Macchiavello, C. Silberhorn,
Physical Review A 113 (2026).
date_created: 2026-03-23T12:29:23Z
date_updated: 2026-03-25T07:59:36Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1103/f6c4-jtlc
intvolume: ' 113'
issue: '3'
language:
- iso: eng
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Experimental entropic uncertainty relations in dimensions three to five
type: journal_article
user_id: '27150'
volume: 113
year: '2026'
...
---
_id: '65256'
citation:
ama: Scheytt JC, Kress C, Berroth M, Pachnicke S, Witzens J, eds. Electronic-Photonic
Integrated Systems for Ultrafast Signal Processing. Springer Nature Switzerland;
2026. doi:10.1007/978-3-032-08340-1
apa: Scheytt, J. C., Kress, C., Berroth, M., Pachnicke, S., & Witzens, J. (Eds.).
(2026). Electronic-Photonic Integrated Systems for Ultrafast Signal Processing.
Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-08340-1
bibtex: '@book{Scheytt_Kress_Berroth_Pachnicke_Witzens_2026, place={Cham}, title={Electronic-Photonic
Integrated Systems for Ultrafast Signal Processing}, DOI={10.1007/978-3-032-08340-1},
publisher={Springer Nature Switzerland}, year={2026} }'
chicago: 'Scheytt, Johann Christoph, Christian Kress, Manfred Berroth, Stephan Pachnicke,
and Jeremy Witzens, eds. Electronic-Photonic Integrated Systems for Ultrafast
Signal Processing. Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-08340-1.'
ieee: 'J. C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, and J. Witzens, Eds.,
Electronic-Photonic Integrated Systems for Ultrafast Signal Processing.
Cham: Springer Nature Switzerland, 2026.'
mla: Scheytt, Johann Christoph, et al., editors. Electronic-Photonic Integrated
Systems for Ultrafast Signal Processing. Springer Nature Switzerland, 2026,
doi:10.1007/978-3-032-08340-1.
short: J.C. Scheytt, C. Kress, M. Berroth, S. Pachnicke, J. Witzens, eds., Electronic-Photonic
Integrated Systems for Ultrafast Signal Processing, Springer Nature Switzerland,
Cham, 2026.
date_created: 2026-03-31T09:02:20Z
date_updated: 2026-03-31T09:03:37Z
department:
- _id: '58'
- _id: '623'
doi: 10.1007/978-3-032-08340-1
editor:
- first_name: Johann Christoph
full_name: Scheytt, Johann Christoph
last_name: Scheytt
- first_name: Christian
full_name: Kress, Christian
last_name: Kress
- first_name: Manfred
full_name: Berroth, Manfred
last_name: Berroth
- first_name: Stephan
full_name: Pachnicke, Stephan
last_name: Pachnicke
- first_name: Jeremy
full_name: Witzens, Jeremy
last_name: Witzens
language:
- iso: eng
place: Cham
publication_identifier:
isbn:
- '9783032083395'
- '9783032083401'
publication_status: published
publisher: Springer Nature Switzerland
related_material:
link:
- relation: confirmation
url: https://doi.org/10.1007/978-3-032-08340-1
status: public
title: Electronic-Photonic Integrated Systems for Ultrafast Signal Processing
type: book_editor
user_id: '13256'
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: '61922'
abstract:
- lang: eng
text: "We present an extremely simple polynomial-space exponential-time\r\n$(1-\\varepsilon)$-approximation
algorithm for MAX-k-SAT that is (slightly)\r\nfaster than the previous known polynomial-space
$(1-\\varepsilon)$-approximation\r\nalgorithms by Hirsch (Discrete Applied Mathematics,
2003) and Escoffier,\r\nPaschos and Tourniaire (Theoretical Computer Science,
2014). Our algorithm\r\nrepeatedly samples an assignment uniformly at random until
finding an\r\nassignment that satisfies a large enough fraction of clauses. Surprisingly,
we\r\ncan show the efficiency of this simpler approach by proving that in any\r\ninstance
of MAX-k-SAT (or more generally any instance of MAXCSP), an\r\nexponential number
of assignments satisfy a fraction of clauses close to the\r\noptimal value."
author:
- first_name: Harry
full_name: Buhrman, Harry
last_name: Buhrman
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
- first_name: Zeph
full_name: Landau, Zeph
last_name: Landau
- first_name: François Le
full_name: Gall, François Le
last_name: Gall
- first_name: Norbert
full_name: Schuch, Norbert
last_name: Schuch
- first_name: Suguru
full_name: Tamaki, Suguru
last_name: Tamaki
citation:
ama: 'Buhrman H, Gharibian S, Landau Z, Gall FL, Schuch N, Tamaki S. A Simpler Exponential-Time
Approximation Algorithm for MAX-k-SAT. In: SIAM Symposium on Simplicity in
Algorithms (SOSA). ; :247-253.'
apa: Buhrman, H., Gharibian, S., Landau, Z., Gall, F. L., Schuch, N., & Tamaki,
S. (n.d.). A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT. SIAM
Symposium on Simplicity in Algorithms (SOSA), 247–253.
bibtex: '@inproceedings{Buhrman_Gharibian_Landau_Gall_Schuch_Tamaki, title={A Simpler
Exponential-Time Approximation Algorithm for MAX-k-SAT}, booktitle={SIAM Symposium
on Simplicity in Algorithms (SOSA)}, author={Buhrman, Harry and Gharibian, Sevag
and Landau, Zeph and Gall, François Le and Schuch, Norbert and Tamaki, Suguru},
pages={247–253} }'
chicago: Buhrman, Harry, Sevag Gharibian, Zeph Landau, François Le Gall, Norbert
Schuch, and Suguru Tamaki. “A Simpler Exponential-Time Approximation Algorithm
for MAX-k-SAT.” In SIAM Symposium on Simplicity in Algorithms (SOSA), 247–53,
n.d.
ieee: H. Buhrman, S. Gharibian, Z. Landau, F. L. Gall, N. Schuch, and S. Tamaki,
“A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT,” in SIAM
Symposium on Simplicity in Algorithms (SOSA), pp. 247–253.
mla: Buhrman, Harry, et al. “A Simpler Exponential-Time Approximation Algorithm
for MAX-k-SAT.” SIAM Symposium on Simplicity in Algorithms (SOSA), pp.
247–53.
short: 'H. Buhrman, S. Gharibian, Z. Landau, F.L. Gall, N. Schuch, S. Tamaki, in:
SIAM Symposium on Simplicity in Algorithms (SOSA), n.d., pp. 247–253.'
date_created: 2025-10-22T09:33:22Z
date_updated: 2026-04-20T13:53:03Z
department:
- _id: '7'
- _id: '623'
external_id:
arxiv:
- '2510.18164'
language:
- iso: eng
page: 247-253
publication: SIAM Symposium on Simplicity in Algorithms (SOSA)
publication_status: inpress
status: public
title: A Simpler Exponential-Time Approximation Algorithm for MAX-k-SAT
type: conference
user_id: '71541'
year: '2026'
...
---
_id: '32099'
author:
- first_name: Tobias
full_name: Weich, Tobias
id: '49178'
last_name: Weich
orcid: 0000-0002-9648-6919
- first_name: Julia
full_name: Budde, Julia
last_name: Budde
citation:
ama: Weich T, Budde J. Wave Front Sets of Nilpotent Lie Group Representations. Journal
of Functional Analysis. 2025;288(1). doi:
https://doi.org/10.1016/j.jfa.2024.110684
apa: Weich, T., & Budde, J. (2025). Wave Front Sets of Nilpotent Lie Group Representations.
Journal of Functional Analysis, 288(1). https://doi.org/ https://doi.org/10.1016/j.jfa.2024.110684
bibtex: '@article{Weich_Budde_2025, title={Wave Front Sets of Nilpotent Lie Group
Representations}, volume={288}, DOI={
https://doi.org/10.1016/j.jfa.2024.110684}, number={1}, journal={Journal of
Functional Analysis}, author={Weich, Tobias and Budde, Julia}, year={2025} }'
chicago: Weich, Tobias, and Julia Budde. “Wave Front Sets of Nilpotent Lie Group
Representations.” Journal of Functional Analysis 288, no. 1 (2025). https://doi.org/
https://doi.org/10.1016/j.jfa.2024.110684.
ieee: 'T. Weich and J. Budde, “Wave Front Sets of Nilpotent Lie Group Representations,”
Journal of Functional Analysis, vol. 288, no. 1, 2025, doi: https://doi.org/10.1016/j.jfa.2024.110684.'
mla: Weich, Tobias, and Julia Budde. “Wave Front Sets of Nilpotent Lie Group Representations.”
Journal of Functional Analysis, vol. 288, no. 1, 2025, doi: https://doi.org/10.1016/j.jfa.2024.110684.
short: T. Weich, J. Budde, Journal of Functional Analysis 288 (2025).
date_created: 2022-06-22T09:56:43Z
date_updated: 2024-09-25T08:18:44Z
ddc:
- '510'
department:
- _id: '10'
- _id: '623'
- _id: '548'
doi: ' https://doi.org/10.1016/j.jfa.2024.110684'
file:
- access_level: open_access
content_type: application/pdf
creator: weich
date_created: 2022-06-22T09:56:39Z
date_updated: 2022-06-22T09:56:39Z
file_id: '32100'
file_name: 2103.02968.pdf
file_size: 978990
relation: main_file
file_date_updated: 2022-06-22T09:56:39Z
has_accepted_license: '1'
intvolume: ' 288'
issue: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '356'
grant_number: '491392403'
name: 'TRR 358 - B02: TRR 358 - Spektraltheorie in höherem Rang und unendlichem
Volumen (Teilprojekt B02)'
- _id: '355'
grant_number: '422642921'
name: Mikrolokale Methoden für hyperbolische Dynamiken
publication: Journal of Functional Analysis
status: public
title: Wave Front Sets of Nilpotent Lie Group Representations
type: journal_article
user_id: '49178'
volume: 288
year: '2025'
...
---
_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'
...