---
_id: '44044'
abstract:
- lang: eng
text: "Dispersion is present in every optical setup and is often an undesired effect,
especially in nonlinear-optical experiments where ultrashort laser pulses are
needed. Typically, bulky pulse compressors consisting of gratings or prisms are
used\r\nto address this issue by precompensating the dispersion of the optical
components. However, these devices are only able to compensate for a part of the
dispersion (second-order dispersion). Here, we present a compact pulse-shaping
device that uses plasmonic metasurfaces to apply an arbitrarily designed spectral
phase delay allowing for a full dispersion control. Furthermore, with specific
phase encodings, this device can be used to temporally reshape the incident laser
pulses into more complex pulse forms such as a double pulse. We verify the performance
of our device by using an SHG-FROG measurement setup together with a retrieval
algorithm to extract the dispersion that our device applies to an incident laser
pulse."
article_type: original
author:
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Philip
full_name: Georgi, Philip
last_name: Georgi
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Shiwei
full_name: Lei, Shiwei
last_name: Lei
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Geromel R, Georgi P, Protte M, et al. Compact Metasurface-Based Optical Pulse-Shaping
Device. Nano Letters. 2023;23(8):3196-3201. doi:10.1021/acs.nanolett.2c04980
apa: Geromel, R., Georgi, P., Protte, M., Lei, S., Bartley, T., Huang, L., &
Zentgraf, T. (2023). Compact Metasurface-Based Optical Pulse-Shaping Device. Nano
Letters, 23(8), 3196–3201. https://doi.org/10.1021/acs.nanolett.2c04980
bibtex: '@article{Geromel_Georgi_Protte_Lei_Bartley_Huang_Zentgraf_2023, title={Compact
Metasurface-Based Optical Pulse-Shaping Device}, volume={23}, DOI={10.1021/acs.nanolett.2c04980},
number={8}, journal={Nano Letters}, publisher={American Chemical Society (ACS)},
author={Geromel, René and Georgi, Philip and Protte, Maximilian and Lei, Shiwei
and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, pages={3196–3201}
}'
chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Shiwei Lei, Tim Bartley,
Lingling Huang, and Thomas Zentgraf. “Compact Metasurface-Based Optical Pulse-Shaping
Device.” Nano Letters 23, no. 8 (2023): 3196–3201. https://doi.org/10.1021/acs.nanolett.2c04980.'
ieee: 'R. Geromel et al., “Compact Metasurface-Based Optical Pulse-Shaping
Device,” Nano Letters, vol. 23, no. 8, pp. 3196–3201, 2023, doi: 10.1021/acs.nanolett.2c04980.'
mla: Geromel, René, et al. “Compact Metasurface-Based Optical Pulse-Shaping Device.”
Nano Letters, vol. 23, no. 8, American Chemical Society (ACS), 2023, pp.
3196–201, doi:10.1021/acs.nanolett.2c04980.
short: R. Geromel, P. Georgi, M. Protte, S. Lei, T. Bartley, L. Huang, T. Zentgraf,
Nano Letters 23 (2023) 3196–3201.
date_created: 2023-04-18T05:47:22Z
date_updated: 2023-05-12T11:17:51Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acs.nanolett.2c04980
file:
- access_level: closed
content_type: application/pdf
creator: zentgraf
date_created: 2023-04-18T05:50:19Z
date_updated: 2023-04-18T05:50:19Z
file_id: '44045'
file_name: acs.nanolett.2c04980.pdf
file_size: 1315966
relation: main_file
success: 1
file_date_updated: 2023-04-18T05:50:19Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: ' 23'
issue: '8'
keyword:
- Mechanical Engineering
- Condensed Matter Physics
- General Materials Science
- General Chemistry
- Bioengineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.2c04980
oa: '1'
page: 3196 - 3201
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
name: 'TRR 142 - B09: TRR 142 - Subproject B09'
- _id: '171'
name: 'TRR 142 - C07: TRR 142 - Subproject C07'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
publication: Nano Letters
publication_identifier:
issn:
- 1530-6984
- 1530-6992
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Compact Metasurface-Based Optical Pulse-Shaping Device
type: journal_article
user_id: '30525'
volume: 23
year: '2023'
...
---
_id: '45485'
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Laura
full_name: Serino, Laura
id: '88242'
last_name: Serino
- first_name: Patrick Fabian
full_name: Folge, Patrick Fabian
id: '88605'
last_name: Folge
- first_name: Dana
full_name: Echeverria Oviedo, Dana
last_name: Echeverria Oviedo
- first_name: Abhinandan
full_name: Bhattacharjee, Abhinandan
last_name: Bhattacharjee
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- 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: Kruse S, Serino L, Folge PF, et al. A Pulsed Lidar System With Ultimate Quantum
Range Accuracy. IEEE Photonics Technology Letters. 2023;35(14):769-772.
doi:10.1109/lpt.2023.3277515
apa: Kruse, S., Serino, L., Folge, P. F., Echeverria Oviedo, D., Bhattacharjee,
A., Stefszky, M., Scheytt, J. C., Brecht, B., & Silberhorn, C. (2023). A Pulsed
Lidar System With Ultimate Quantum Range Accuracy. IEEE Photonics Technology
Letters, 35(14), 769–772. https://doi.org/10.1109/lpt.2023.3277515
bibtex: '@article{Kruse_Serino_Folge_Echeverria Oviedo_Bhattacharjee_Stefszky_Scheytt_Brecht_Silberhorn_2023,
title={A Pulsed Lidar System With Ultimate Quantum Range Accuracy}, volume={35},
DOI={10.1109/lpt.2023.3277515},
number={14}, journal={IEEE Photonics Technology Letters}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Kruse, Stephan and Serino,
Laura and Folge, Patrick Fabian and Echeverria Oviedo, Dana and Bhattacharjee,
Abhinandan and Stefszky, Michael and Scheytt, J. Christoph and Brecht, Benjamin
and Silberhorn, Christine}, year={2023}, pages={769–772} }'
chicago: 'Kruse, Stephan, Laura Serino, Patrick Fabian Folge, Dana Echeverria Oviedo,
Abhinandan Bhattacharjee, Michael Stefszky, J. Christoph Scheytt, Benjamin Brecht,
and Christine Silberhorn. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.”
IEEE Photonics Technology Letters 35, no. 14 (2023): 769–72. https://doi.org/10.1109/lpt.2023.3277515.'
ieee: 'S. Kruse et al., “A Pulsed Lidar System With Ultimate Quantum Range
Accuracy,” IEEE Photonics Technology Letters, vol. 35, no. 14, pp. 769–772,
2023, doi: 10.1109/lpt.2023.3277515.'
mla: Kruse, Stephan, et al. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.”
IEEE Photonics Technology Letters, vol. 35, no. 14, Institute of Electrical
and Electronics Engineers (IEEE), 2023, pp. 769–72, doi:10.1109/lpt.2023.3277515.
short: S. Kruse, L. Serino, P.F. Folge, D. Echeverria Oviedo, A. Bhattacharjee,
M. Stefszky, J.C. Scheytt, B. Brecht, C. Silberhorn, IEEE Photonics Technology
Letters 35 (2023) 769–772.
date_created: 2023-06-06T10:09:05Z
date_updated: 2023-06-06T10:13:05Z
department:
- _id: '15'
- _id: '58'
- _id: '623'
- _id: '230'
- _id: '288'
doi: 10.1109/lpt.2023.3277515
intvolume: ' 35'
issue: '14'
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 769-772
publication: IEEE Photonics Technology Letters
publication_identifier:
issn:
- 1041-1135
- 1941-0174
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: A Pulsed Lidar System With Ultimate Quantum Range Accuracy
type: journal_article
user_id: '27150'
volume: 35
year: '2023'
...
---
_id: '43192'
abstract:
- lang: eng
text: The nonlinear optical response of an ensemble of semiconductor quantum dots
is analyzed by wave-mixing processes, where we focus on four-wave mixing with
two incident pulses. Wave-mixing experiments are often described with semiclassical
models, where the light is modeled classically and the material quantum mechanically.
Here, however, we use a fully quantized model, where the light is given by a quantum
state of light. Quantum light involves more degrees of freedom than classical
light as e.g., its photon statistics and quantum correlations, which is a promising
resource for quantum devices, such as quantum memories. The light-matter interaction
is treated with a Jaynes-Cummings type model and the quantum field is given by
a single mode since the quantum dots are embedded in a microcavity. We present
numerical simulations of the four-wave-mixing response of a homogeneous system
for pulse sequences and find a significant dependence of the result on the photon
statistics of the incident pulses. The model constitutes a problem with a large
state space which arises from the frequency distribution of the transition energies
of the inhomogeneously broadened quantum dot ensemble that is coupled with a quantum
light mode. Here we approximate the dynamics by summing over individual quantum
dot-microcavity systems. Photon echoes arising from the excitation with different
quantum states of light are simulated and compared.
article_number: 124190H
author:
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: S.
full_name: Grisard, S.
last_name: Grisard
- first_name: A. V.
full_name: Trifonov, A. V.
last_name: Trifonov
- first_name: R.
full_name: Reichhardt, R.
last_name: Reichhardt
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: M.
full_name: Bayer, M.
last_name: Bayer
- first_name: 'I. A. '
full_name: 'Akimov, I. A. '
last_name: Akimov
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Rose H, Grisard S, Trifonov AV, et al. Theoretical analysis of four-wave mixing
on semiconductor quantum dot ensembles with quantum light. In: Ultrafast Phenomena
and Nanophotonics XXVII. Vol 12419. SPIE Proceedings. SPIE; 2023. doi:10.1117/12.2647700'
apa: Rose, H., Grisard, S., Trifonov, A. V., Reichhardt, R., Reichelt, M., Bayer,
M., Akimov, I. A., & Meier, T. (2023). Theoretical analysis of four-wave mixing
on semiconductor quantum dot ensembles with quantum light. Ultrafast Phenomena
and Nanophotonics XXVII, 12419, Article 124190H. https://doi.org/10.1117/12.2647700
bibtex: '@inproceedings{Rose_Grisard_Trifonov_Reichhardt_Reichelt_Bayer_Akimov_Meier_2023,
series={SPIE Proceedings}, title={Theoretical analysis of four-wave mixing on
semiconductor quantum dot ensembles with quantum light}, volume={12419}, DOI={10.1117/12.2647700}, number={124190H},
booktitle={Ultrafast Phenomena and Nanophotonics XXVII}, publisher={SPIE}, author={Rose,
Hendrik and Grisard, S. and Trifonov, A. V. and Reichhardt, R. and Reichelt, Matthias
and Bayer, M. and Akimov, I. A. and Meier, Torsten}, year={2023}, collection={SPIE
Proceedings} }'
chicago: Rose, Hendrik, S. Grisard, A. V. Trifonov, R. Reichhardt, Matthias Reichelt,
M. Bayer, I. A. Akimov, and Torsten Meier. “Theoretical Analysis of Four-Wave
Mixing on Semiconductor Quantum Dot Ensembles with Quantum Light.” In Ultrafast
Phenomena and Nanophotonics XXVII, Vol. 12419. SPIE Proceedings. SPIE, 2023.
https://doi.org/10.1117/12.2647700.
ieee: 'H. Rose et al., “Theoretical analysis of four-wave mixing on semiconductor
quantum dot ensembles with quantum light,” in Ultrafast Phenomena and Nanophotonics
XXVII, 2023, vol. 12419, doi: 10.1117/12.2647700.'
mla: Rose, Hendrik, et al. “Theoretical Analysis of Four-Wave Mixing on Semiconductor
Quantum Dot Ensembles with Quantum Light.” Ultrafast Phenomena and Nanophotonics
XXVII, vol. 12419, 124190H, SPIE, 2023, doi:10.1117/12.2647700.
short: 'H. Rose, S. Grisard, A.V. Trifonov, R. Reichhardt, M. Reichelt, M. Bayer,
I.A. Akimov, T. Meier, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE,
2023.'
date_created: 2023-03-29T20:28:20Z
date_updated: 2023-06-16T17:54:41Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '429'
- _id: '230'
- _id: '623'
doi: 10.1117/12.2647700
intvolume: ' 12419'
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '59'
grant_number: '231447078'
name: 'TRR 142 - A02: TRR 142 - Subproject A02'
- _id: '165'
grant_number: '231447078'
name: 'TRR 142 - A10: TRR 142 - Subproject A10'
publication: Ultrafast Phenomena and Nanophotonics XXVII
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles
with quantum light
type: conference
user_id: '55958'
volume: 12419
year: '2023'
...
---
_id: '45868'
abstract:
- lang: eng
text: Perfect vector vortex beams (PVVBs) have attracted considerable interest due
to their peculiar optical features. PVVBs are typically generated through the
superposition of perfect vortex beams, which suffer from the limited number of
topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable
and has not been reported. We propose and experimentally demonstrate hybrid grafted
perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs
are generated through the superposition of grafted perfect vortex beams with a
multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant
rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB
includes different GPVVBs in the same beam, adding more design flexibility. Moreover,
these beams are dynamically controlled with a rotating half waveplate. The generated
dynamic GPVVBs may find applications in the fields where dynamic control is in
high demand, including optical encryption, dense data communication, and multiple
particle manipulation.
article_number: '3915'
author:
- first_name: Hammad
full_name: Ahmed, Hammad
last_name: Ahmed
- first_name: Muhammad Afnan
full_name: Ansari, Muhammad Afnan
last_name: Ansari
- first_name: Yan
full_name: Li, Yan
last_name: Li
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Muhammad Qasim
full_name: Mehmood, Muhammad Qasim
last_name: Mehmood
- first_name: Xianzhong
full_name: Chen, Xianzhong
last_name: Chen
citation:
ama: Ahmed H, Ansari MA, Li Y, Zentgraf T, Mehmood MQ, Chen X. Dynamic control of
hybrid grafted perfect vector vortex beams. Nature Communications. 2023;14(1).
doi:10.1038/s41467-023-39599-8
apa: Ahmed, H., Ansari, M. A., Li, Y., Zentgraf, T., Mehmood, M. Q., & Chen,
X. (2023). Dynamic control of hybrid grafted perfect vector vortex beams. Nature
Communications, 14(1), Article 3915. https://doi.org/10.1038/s41467-023-39599-8
bibtex: '@article{Ahmed_Ansari_Li_Zentgraf_Mehmood_Chen_2023, title={Dynamic control
of hybrid grafted perfect vector vortex beams}, volume={14}, DOI={10.1038/s41467-023-39599-8},
number={13915}, journal={Nature Communications}, publisher={Springer Science and
Business Media LLC}, author={Ahmed, Hammad and Ansari, Muhammad Afnan and Li,
Yan and Zentgraf, Thomas and Mehmood, Muhammad Qasim and Chen, Xianzhong}, year={2023}
}'
chicago: Ahmed, Hammad, Muhammad Afnan Ansari, Yan Li, Thomas Zentgraf, Muhammad
Qasim Mehmood, and Xianzhong Chen. “Dynamic Control of Hybrid Grafted Perfect
Vector Vortex Beams.” Nature Communications 14, no. 1 (2023). https://doi.org/10.1038/s41467-023-39599-8.
ieee: 'H. Ahmed, M. A. Ansari, Y. Li, T. Zentgraf, M. Q. Mehmood, and X. Chen, “Dynamic
control of hybrid grafted perfect vector vortex beams,” Nature Communications,
vol. 14, no. 1, Art. no. 3915, 2023, doi: 10.1038/s41467-023-39599-8.'
mla: Ahmed, Hammad, et al. “Dynamic Control of Hybrid Grafted Perfect Vector Vortex
Beams.” Nature Communications, vol. 14, no. 1, 3915, Springer Science and
Business Media LLC, 2023, doi:10.1038/s41467-023-39599-8.
short: H. Ahmed, M.A. Ansari, Y. Li, T. Zentgraf, M.Q. Mehmood, X. Chen, Nature
Communications 14 (2023).
date_created: 2023-07-06T06:34:37Z
date_updated: 2023-07-06T06:42:10Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1038/s41467-023-39599-8
file:
- access_level: closed
content_type: application/pdf
creator: zentgraf
date_created: 2023-07-06T06:40:28Z
date_updated: 2023-07-06T06:40:28Z
file_id: '45869'
file_name: NatureCommun_Ahmed_2023.pdf
file_size: 4341041
relation: main_file
success: 1
file_date_updated: 2023-07-06T06:40:28Z
has_accepted_license: '1'
intvolume: ' 14'
issue: '1'
keyword:
- General Physics and Astronomy
- General Biochemistry
- Genetics and Molecular Biology
- General Chemistry
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
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: Dynamic control of hybrid grafted perfect vector vortex beams
type: journal_article
user_id: '30525'
volume: 14
year: '2023'
...
---
_id: '45850'
abstract:
- lang: eng
text: Interference between single photons is key for many quantum optics experiments
and applications in quantum technologies, such as quantum communication or computation.
It is advantageous to operate the systems at telecommunication wavelengths and
to integrate the setups for these applications in order to improve stability,
compactness and scalability. A new promising material platform for integrated
quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel
(HOM) interference between telecom photons from an engineered parametric down-conversion
source in an LNOI directional coupler. The coupler has been designed and fabricated
in house and provides close to perfect balanced beam splitting. We obtain a raw
HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and
in good agreement with off-chip measurements. This lays the foundation for more
sophisticated quantum experiments in LNOI.
article_number: '23140'
author:
- first_name: Silia
full_name: Babel, Silia
id: '63231'
last_name: Babel
orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Marcello
full_name: Massaro, Marcello
id: '59545'
last_name: Massaro
orcid: 0000-0002-2539-7652
- first_name: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Federico
full_name: Pegoraro, Federico
id: '88928'
last_name: Pegoraro
- first_name: Philip
full_name: Held, Philip
id: '68236'
last_name: Held
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- 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: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference
in an LNOI directional coupler. Optics Express. 2023;31(14). doi:10.1364/oe.484126
apa: Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F.,
Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., & Silberhorn,
C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional
coupler. Optics Express, 31(14), Article 23140. https://doi.org/10.1364/oe.484126
bibtex: '@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et
al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional
coupler}, volume={31}, DOI={10.1364/oe.484126},
number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong
and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald
and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }'
chicago: Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky,
Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference
in an LNOI Directional Coupler.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.484126.
ieee: 'S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in
an LNOI directional coupler,” Optics Express, vol. 31, no. 14, Art. no.
23140, 2023, doi: 10.1364/oe.484126.'
mla: Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI
Directional Coupler.” Optics Express, vol. 31, no. 14, 23140, Optica Publishing
Group, 2023, doi:10.1364/oe.484126.
short: S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P.
Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express
31 (2023).
date_created: 2023-07-03T14:08:36Z
date_updated: 2023-07-05T07:58:31Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
- _id: '288'
doi: 10.1364/oe.484126
intvolume: ' 31'
issue: '14'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
type: journal_article
user_id: '63231'
volume: 31
year: '2023'
...
---
_id: '34138'
abstract:
- lang: eng
text: "Variational Quantum Algorithms (VQAs), such as the Quantum Approximate\r\nOptimization
Algorithm (QAOA) of [Farhi, Goldstone, Gutmann, 2014], have seen\r\nintense study
towards near-term applications on quantum hardware. A crucial\r\nparameter for
VQAs is the depth of the variational ansatz used - the smaller\r\nthe depth, the
more amenable the ansatz is to near-term quantum hardware in\r\nthat it gives
the circuit a chance to be fully executed before the system\r\ndecoheres. This
potential for depth reduction has made VQAs a staple of Noisy\r\nIntermediate-Scale
Quantum (NISQ)-era research.\r\n In this work, we show that approximating the
optimal depth for a given VQA\r\nansatz is intractable. Formally, we show that
for any constant $\\epsilon>0$, it\r\nis QCMA-hard to approximate the optimal
depth of a VQA ansatz within\r\nmultiplicative factor $N^{1-\\epsilon}$, for $N$
denoting the encoding size of\r\nthe VQA instance. (Here, Quantum Classical Merlin-Arthur
(QCMA) is a quantum\r\ngeneralization of NP.) We then show that this hardness
persists even in the\r\n\"simpler\" setting of QAOAs. To our knowledge, this yields
the first natural\r\nQCMA-hard-to-approximate problems. To achieve these results,
we bypass the need\r\nfor a PCP theorem for QCMA by appealing to the disperser-based
NP-hardness of\r\napproximation construction of [Umans, FOCS 1999]."
author:
- first_name: Lennart
full_name: Bittel, Lennart
last_name: Bittel
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
- first_name: Martin
full_name: Kliesch, Martin
last_name: Kliesch
citation:
ama: 'Bittel L, Gharibian S, Kliesch M. The Optimal Depth of Variational Quantum
Algorithms Is QCMA-Hard to Approximate. In: Proceedings of the 38th Computational
Complexity Conference (CCC). Vol 264. Leibniz International Proceedings in
Informatics (LIPIcs). ; 2023:34:1-34:24. doi:10.4230/LIPIcs.CCC.2023.34'
apa: Bittel, L., Gharibian, S., & Kliesch, M. (2023). The Optimal Depth of Variational
Quantum Algorithms Is QCMA-Hard to Approximate. Proceedings of the 38th Computational
Complexity Conference (CCC), 264(34), 34:1-34:24. https://doi.org/10.4230/LIPIcs.CCC.2023.34
bibtex: '@inproceedings{Bittel_Gharibian_Kliesch_2023, series={Leibniz International
Proceedings in Informatics (LIPIcs)}, title={The Optimal Depth of Variational
Quantum Algorithms Is QCMA-Hard to Approximate}, volume={264}, DOI={10.4230/LIPIcs.CCC.2023.34},
number={34}, booktitle={Proceedings of the 38th Computational Complexity Conference
(CCC)}, author={Bittel, Lennart and Gharibian, Sevag and Kliesch, Martin}, year={2023},
pages={34:1-34:24}, collection={Leibniz International Proceedings in Informatics
(LIPIcs)} }'
chicago: Bittel, Lennart, Sevag Gharibian, and Martin Kliesch. “The Optimal Depth
of Variational Quantum Algorithms Is QCMA-Hard to Approximate.” In Proceedings
of the 38th Computational Complexity Conference (CCC), 264:34:1-34:24. Leibniz
International Proceedings in Informatics (LIPIcs), 2023. https://doi.org/10.4230/LIPIcs.CCC.2023.34.
ieee: 'L. Bittel, S. Gharibian, and M. Kliesch, “The Optimal Depth of Variational
Quantum Algorithms Is QCMA-Hard to Approximate,” in Proceedings of the 38th
Computational Complexity Conference (CCC), 2023, vol. 264, no. 34, p. 34:1-34:24,
doi: 10.4230/LIPIcs.CCC.2023.34.'
mla: Bittel, Lennart, et al. “The Optimal Depth of Variational Quantum Algorithms
Is QCMA-Hard to Approximate.” Proceedings of the 38th Computational Complexity
Conference (CCC), vol. 264, no. 34, 2023, p. 34:1-34:24, doi:10.4230/LIPIcs.CCC.2023.34.
short: 'L. Bittel, S. Gharibian, M. Kliesch, in: Proceedings of the 38th Computational
Complexity Conference (CCC), 2023, p. 34:1-34:24.'
date_created: 2022-11-24T08:07:56Z
date_updated: 2023-07-10T14:33:00Z
department:
- _id: '623'
- _id: '7'
doi: 10.4230/LIPIcs.CCC.2023.34
external_id:
arxiv:
- '2211.12519'
intvolume: ' 264'
issue: '34'
language:
- iso: eng
page: 34:1-34:24
publication: Proceedings of the 38th Computational Complexity Conference (CCC)
publication_status: published
series_title: Leibniz International Proceedings in Informatics (LIPIcs)
status: public
title: The Optimal Depth of Variational Quantum Algorithms Is QCMA-Hard to Approximate
type: conference
user_id: '71541'
volume: 264
year: '2023'
...
---
_id: '46138'
abstract:
- lang: eng
text: This work reports a fully guided setup for single-mode squeezing on
integrated titanium-indiffused periodically poled nonlinear resonators. A continuous-wave
laser beam is delivered and the squeezed field is collected by single-mode fibers;
up to −3.17(9) dB of useful squeezing is available in fibers. To showcase the
usefulness of such a fiber-coupled device, we applied the generated squeezed light
in a fiber-based phase sensing experiment, showing a quantum enhancement in the
signal-to-noise ratio of 0.35 dB. Moreover, our investigation of the effect of
photorefraction on the cavity resonance condition suggests that it causes system
instabilities at high powers.
article_number: '2999'
article_type: original
author:
- first_name: Renato
full_name: Domeneguetti, Renato
last_name: Domeneguetti
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Ulrik L.
full_name: Andersen, Ulrik L.
last_name: Andersen
- first_name: Jonas S.
full_name: Neergaard-Nielsen, Jonas S.
last_name: Neergaard-Nielsen
- first_name: Tobias
full_name: Gehring, Tobias
last_name: Gehring
citation:
ama: Domeneguetti R, Stefszky M, Herrmann H, et al. Fully guided and phase locked
Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters.
2023;48(11). doi:10.1364/ol.486654
apa: Domeneguetti, R., Stefszky, M., Herrmann, H., Silberhorn, C., Andersen, U.
L., Neergaard-Nielsen, J. S., & Gehring, T. (2023). Fully guided and phase
locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics
Letters, 48(11), Article 2999. https://doi.org/10.1364/ol.486654
bibtex: '@article{Domeneguetti_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2023,
title={Fully guided and phase locked Ti:PPLN waveguide squeezing for applications
in quantum sensing}, volume={48}, DOI={10.1364/ol.486654},
number={112999}, journal={Optics Letters}, publisher={Optica Publishing Group},
author={Domeneguetti, Renato and Stefszky, Michael and Herrmann, Harald and Silberhorn,
Christine and Andersen, Ulrik L. and Neergaard-Nielsen, Jonas S. and Gehring,
Tobias}, year={2023} }'
chicago: Domeneguetti, Renato, Michael Stefszky, Harald Herrmann, Christine Silberhorn,
Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, and Tobias Gehring. “Fully Guided
and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.”
Optics Letters 48, no. 11 (2023). https://doi.org/10.1364/ol.486654.
ieee: 'R. Domeneguetti et al., “Fully guided and phase locked Ti:PPLN waveguide
squeezing for applications in quantum sensing,” Optics Letters, vol. 48,
no. 11, Art. no. 2999, 2023, doi: 10.1364/ol.486654.'
mla: Domeneguetti, Renato, et al. “Fully Guided and Phase Locked Ti:PPLN Waveguide
Squeezing for Applications in Quantum Sensing.” Optics Letters, vol. 48,
no. 11, 2999, Optica Publishing Group, 2023, doi:10.1364/ol.486654.
short: R. Domeneguetti, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen,
J.S. Neergaard-Nielsen, T. Gehring, Optics Letters 48 (2023).
date_created: 2023-07-25T10:35:24Z
date_updated: 2023-07-25T10:58:05Z
department:
- _id: '230'
- _id: '623'
- _id: '288'
doi: 10.1364/ol.486654
intvolume: ' 48'
issue: '11'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
project:
- _id: '218'
name: 'UNIQORN: UNIQORN - Affordable Quantum Communication for Everyone - EU Quantum
Flagship Project'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: Fully guided and phase locked Ti:PPLN waveguide squeezing for applications
in quantum sensing
type: journal_article
user_id: '216'
volume: 48
year: '2023'
...
---
_id: '46485'
abstract:
- lang: eng
text: We present a miniaturized pulse shaping device that creates an arbitrary dispersion
through the interaction of multiple metasurfaces on less than 2 mm3
volume. For this, a metalens and a grating-metasurface between two silver mirrors
are fabricated. The grating contains further phase information to achieve the
device's pulse shaping functionality.
article_number: FTh4D.3
author:
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Philip
full_name: Georgi, Philip
last_name: Georgi
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Geromel R, Georgi P, Protte M, Bartley T, Huang L, Zentgraf T. Dispersion
control with integrated plasmonic metasurfaces. In: CLEO: Fundamental Science
2023. Technical Digest Series. Optica Publishing Group; 2023. doi:10.1364/cleo_fs.2023.fth4d.3'
apa: 'Geromel, R., Georgi, P., Protte, M., Bartley, T., Huang, L., & Zentgraf,
T. (2023). Dispersion control with integrated plasmonic metasurfaces. CLEO:
Fundamental Science 2023, Article FTh4D.3. CLEO: Fundamental Science 2023,
San Jose, USA. https://doi.org/10.1364/cleo_fs.2023.fth4d.3'
bibtex: '@inproceedings{Geromel_Georgi_Protte_Bartley_Huang_Zentgraf_2023, series={Technical
Digest Series}, title={Dispersion control with integrated plasmonic metasurfaces},
DOI={10.1364/cleo_fs.2023.fth4d.3},
number={FTh4D.3}, booktitle={CLEO: Fundamental Science 2023}, publisher={Optica
Publishing Group}, author={Geromel, René and Georgi, Philip and Protte, Maximilian
and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, collection={Technical
Digest Series} }'
chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Tim Bartley, Lingling
Huang, and Thomas Zentgraf. “Dispersion Control with Integrated Plasmonic Metasurfaces.”
In CLEO: Fundamental Science 2023. Technical Digest Series. Optica Publishing
Group, 2023. https://doi.org/10.1364/cleo_fs.2023.fth4d.3.'
ieee: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, and T. Zentgraf,
“Dispersion control with integrated plasmonic metasurfaces,” presented at the
CLEO: Fundamental Science 2023, San Jose, USA, 2023, doi: 10.1364/cleo_fs.2023.fth4d.3.'
mla: 'Geromel, René, et al. “Dispersion Control with Integrated Plasmonic Metasurfaces.”
CLEO: Fundamental Science 2023, FTh4D.3, Optica Publishing Group, 2023,
doi:10.1364/cleo_fs.2023.fth4d.3.'
short: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, T. Zentgraf, in:
CLEO: Fundamental Science 2023, Optica Publishing Group, 2023.'
conference:
end_date: 2023-05-12
location: San Jose, USA
name: 'CLEO: Fundamental Science 2023'
start_date: 2023-05-07
date_created: 2023-08-14T08:19:22Z
date_updated: 2023-08-14T08:22:31Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1364/cleo_fs.2023.fth4d.3
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
grant_number: '231447078'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
publication: 'CLEO: Fundamental Science 2023'
publication_status: published
publisher: Optica Publishing Group
series_title: Technical Digest Series
status: public
title: Dispersion control with integrated plasmonic metasurfaces
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '47543'
author:
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Shuang
full_name: Zhang, Shuang
last_name: Zhang
citation:
ama: 'Zentgraf T, Sain B, Zhang S. Symmetry governed nonlinear selection rules in
nanophotonics . In: Panoiu NC, ed. Fundamentals and Applications of Nonlinear
Nanophotonics. 1st ed. Nanophotonics Series. Elsevier; 2023. doi:10.1016/B978-0-323-90614-2.00011-0'
apa: Zentgraf, T., Sain, B., & Zhang, S. (2023). Symmetry governed nonlinear
selection rules in nanophotonics . In N. C. Panoiu (Ed.), Fundamentals and
Applications of Nonlinear Nanophotonics (1st ed.). Elsevier. https://doi.org/10.1016/B978-0-323-90614-2.00011-0
bibtex: '@inbook{Zentgraf_Sain_Zhang_2023, place={Amsterdam}, edition={1}, series={Nanophotonics
Series}, title={Symmetry governed nonlinear selection rules in nanophotonics },
DOI={10.1016/B978-0-323-90614-2.00011-0},
booktitle={Fundamentals and Applications of Nonlinear Nanophotonics}, publisher={Elsevier},
author={Zentgraf, Thomas and Sain, Basudeb and Zhang, Shuang}, editor={Panoiu,
Nicoae C.}, year={2023}, collection={Nanophotonics Series} }'
chicago: 'Zentgraf, Thomas, Basudeb Sain, and Shuang Zhang. “Symmetry Governed Nonlinear
Selection Rules in Nanophotonics .” In Fundamentals and Applications of Nonlinear
Nanophotonics, edited by Nicoae C. Panoiu, 1st ed. Nanophotonics Series. Amsterdam:
Elsevier, 2023. https://doi.org/10.1016/B978-0-323-90614-2.00011-0.'
ieee: 'T. Zentgraf, B. Sain, and S. Zhang, “Symmetry governed nonlinear selection
rules in nanophotonics ,” in Fundamentals and Applications of Nonlinear Nanophotonics,
1st ed., N. C. Panoiu, Ed. Amsterdam: Elsevier, 2023.'
mla: Zentgraf, Thomas, et al. “Symmetry Governed Nonlinear Selection Rules in Nanophotonics
.” Fundamentals and Applications of Nonlinear Nanophotonics, edited by
Nicoae C. Panoiu, 1st ed., Elsevier, 2023, doi:10.1016/B978-0-323-90614-2.00011-0.
short: 'T. Zentgraf, B. Sain, S. Zhang, in: N.C. Panoiu (Ed.), Fundamentals and
Applications of Nonlinear Nanophotonics, 1st ed., Elsevier, Amsterdam, 2023.'
date_created: 2023-10-04T06:22:23Z
date_updated: 2025-05-21T08:44:11Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1016/B978-0-323-90614-2.00011-0
edition: '1'
editor:
- first_name: Nicoae C.
full_name: Panoiu, Nicoae C.
last_name: Panoiu
language:
- iso: eng
main_file_link:
- url: https://www.sciencedirect.com/science/article/pii/B9780323906142000110
place: Amsterdam
project:
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
grant_number: '231447078'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
publication: Fundamentals and Applications of Nonlinear Nanophotonics
publication_identifier:
isbn:
- 978-0-323-90614-2
publication_status: published
publisher: Elsevier
series_title: Nanophotonics Series
status: public
title: 'Symmetry governed nonlinear selection rules in nanophotonics '
type: book_chapter
user_id: '30525'
year: '2023'
...
---
_id: '43051'
abstract:
- lang: eng
text: We demonstrate the numerical and experimental realization of optimized optical
traveling-wave antennas made of low-loss dielectric materials. These antennas
exhibit highly directive radiation patterns and our studies reveal that this nature
comes from two dominant guided TE modes excited in the waveguide-like director
of the antenna, in addition to the leaky modes. The optimized antennas possess
a broadband nature and have a nearunity radiation efficiency at an operational
wavelength of 780 nm. Compared to the previously studied plasmonic antennas for
photon emission, our all-dielectric approach demonstrates a new class of highly
directional, low-loss, and broadband optical antennas.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Lok-Yee
full_name: Yan, Lok-Yee
last_name: Yan
- first_name: Till
full_name: Leuteritz, Till
last_name: Leuteritz
- first_name: Siqi
full_name: Qiao, Siqi
last_name: Qiao
- first_name: Florian
full_name: Spreyer, Florian
last_name: Spreyer
- first_name: Christian
full_name: Schlickriede, Christian
last_name: Schlickriede
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
last_name: Eigner
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Farheen H, Yan L-Y, Leuteritz T, et al. Tailoring the directive nature of
optical waveguide antennas. In: García-Blanco SM, Cheben P, eds. Integrated
Optics: Devices, Materials, and Technologies XXVII. SPIE; 2023:124241E. doi:10.1117/12.2658921'
apa: 'Farheen, H., Yan, L.-Y., Leuteritz, T., Qiao, S., Spreyer, F., Schlickriede,
C., Quiring, V., Eigner, C., Silberhorn, C., Zentgraf, T., Linden, S., Myroshnychenko,
V., & Förstner, J. (2023). Tailoring the directive nature of optical waveguide
antennas. In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics:
Devices, Materials, and Technologies XXVII (p. 124241E). SPIE. https://doi.org/10.1117/12.2658921'
bibtex: '@inproceedings{Farheen_Yan_Leuteritz_Qiao_Spreyer_Schlickriede_Quiring_Eigner_Silberhorn_Zentgraf_et
al._2023, title={Tailoring the directive nature of optical waveguide antennas},
DOI={10.1117/12.2658921}, booktitle={Integrated
Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE}, author={Farheen,
Henna and Yan, Lok-Yee and Leuteritz, Till and Qiao, Siqi and Spreyer, Florian
and Schlickriede, Christian and Quiring, Viktor and Eigner, Christof and Silberhorn,
Christine and Zentgraf, Thomas and et al.}, editor={García-Blanco, Sonia M. and
Cheben, Pavel}, year={2023}, pages={124241E} }'
chicago: 'Farheen, Henna, Lok-Yee Yan, Till Leuteritz, Siqi Qiao, Florian Spreyer,
Christian Schlickriede, Viktor Quiring, et al. “Tailoring the Directive Nature
of Optical Waveguide Antennas.” In Integrated Optics: Devices, Materials, and
Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, 124241E.
SPIE, 2023. https://doi.org/10.1117/12.2658921.'
ieee: 'H. Farheen et al., “Tailoring the directive nature of optical waveguide
antennas,” in Integrated Optics: Devices, Materials, and Technologies XXVII,
2023, p. 124241E, doi: 10.1117/12.2658921.'
mla: 'Farheen, Henna, et al. “Tailoring the Directive Nature of Optical Waveguide
Antennas.” Integrated Optics: Devices, Materials, and Technologies XXVII,
edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241E, doi:10.1117/12.2658921.'
short: 'H. Farheen, L.-Y. Yan, T. Leuteritz, S. Qiao, F. Spreyer, C. Schlickriede,
V. Quiring, C. Eigner, C. Silberhorn, T. Zentgraf, S. Linden, V. Myroshnychenko,
J. Förstner, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices,
Materials, and Technologies XXVII, SPIE, 2023, p. 124241E.'
date_created: 2023-03-21T12:28:31Z
date_updated: 2025-05-23T05:57:14Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1117/12.2658921
editor:
- first_name: Sonia M.
full_name: García-Blanco, Sonia M.
last_name: García-Blanco
- first_name: Pavel
full_name: Cheben, Pavel
last_name: Cheben
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2023-03-22T09:25:57Z
date_updated: 2023-03-22T09:25:57Z
file_id: '43062'
file_name: 2023-01 Poster Photonics West Henna OWA_A0.pdf
file_size: 1426599
relation: main_file
file_date_updated: 2023-03-22T09:25:57Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: 124241E
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '65'
grant_number: '231447078'
name: 'TRR 142 - A08: TRR 142 - Nichtlineare Kopplung von Zwischenschicht-Exzitonen
in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten
(A08)'
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII'
publication_status: published
publisher: SPIE
status: public
title: Tailoring the directive nature of optical waveguide antennas
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '40513'
abstract:
- lang: eng
text: Geometric-phase dielectric meta-lenses made of silicon with high numerical
aperture and short focal lengths are fabricated and characterised. For circularly
polarised light, the same meta-lens can act as a converging or diverging lens,
depending on the handedness of the circular polarisation. This effect enables
application for optical tweezers that trap or release µm-size polymer beads floating
in a microfluidic channel on demand. An electrically addressable polarisation
converter based on liquid crystals may be used to switch between the two states
of polarisation, at which the light transmitted through the meta-lens is focused
(trapping) or defocussed (releasing), respectively.
author:
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Roman
full_name: Rennerich, Roman
last_name: Rennerich
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Geromel R, Rennerich R, Zentgraf T, Kitzerow H-S. Geometric-phase metalens
to be used for tunable optical tweezers in microfluidics. Liquid Crystals.
2023;50(7-10):1193-1203. doi:10.1080/02678292.2023.2171146
apa: Geromel, R., Rennerich, R., Zentgraf, T., & Kitzerow, H.-S. (2023). Geometric-phase
metalens to be used for tunable optical tweezers in microfluidics. Liquid Crystals,
50(7–10), 1193–1203. https://doi.org/10.1080/02678292.2023.2171146
bibtex: '@article{Geromel_Rennerich_Zentgraf_Kitzerow_2023, title={Geometric-phase
metalens to be used for tunable optical tweezers in microfluidics}, volume={50},
DOI={10.1080/02678292.2023.2171146},
number={7–10}, journal={Liquid Crystals}, publisher={Taylor & Francis}, author={Geromel,
René and Rennerich, Roman and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried},
year={2023}, pages={1193–1203} }'
chicago: 'Geromel, René, Roman Rennerich, Thomas Zentgraf, and Heinz-Siegfried Kitzerow.
“Geometric-Phase Metalens to Be Used for Tunable Optical Tweezers in Microfluidics.”
Liquid Crystals 50, no. 7–10 (2023): 1193–1203. https://doi.org/10.1080/02678292.2023.2171146.'
ieee: 'R. Geromel, R. Rennerich, T. Zentgraf, and H.-S. Kitzerow, “Geometric-phase
metalens to be used for tunable optical tweezers in microfluidics,” Liquid
Crystals, vol. 50, no. 7–10, pp. 1193–1203, 2023, doi: 10.1080/02678292.2023.2171146.'
mla: Geromel, René, et al. “Geometric-Phase Metalens to Be Used for Tunable Optical
Tweezers in Microfluidics.” Liquid Crystals, vol. 50, no. 7–10, Taylor
& Francis, 2023, pp. 1193–203, doi:10.1080/02678292.2023.2171146.
short: R. Geromel, R. Rennerich, T. Zentgraf, H.-S. Kitzerow, Liquid Crystals 50
(2023) 1193–1203.
date_created: 2023-01-27T12:42:16Z
date_updated: 2025-05-23T05:52:46Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
- _id: '15'
- _id: '623'
doi: 10.1080/02678292.2023.2171146
intvolume: ' 50'
issue: 7-10
language:
- iso: eng
page: 1193-1203
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
grant_number: '231447078'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
publication: Liquid Crystals
publisher: Taylor & Francis
quality_controlled: '1'
status: public
title: Geometric-phase metalens to be used for tunable optical tweezers in microfluidics
type: journal_article
user_id: '30525'
volume: 50
year: '2023'
...
---
_id: '55900'
article_number: '043158'
author:
- first_name: Dennis
full_name: Scharwald, Dennis
id: '55907'
last_name: Scharwald
orcid: 0009-0007-5654-5412
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Polina
full_name: Sharapova, Polina
last_name: Sharapova
citation:
ama: Scharwald D, Meier T, Sharapova P. Phase sensitivity of spatially broadband
high-gain SU(1,1) interferometers. Physical Review Research. 2023;5(4).
doi:10.1103/physrevresearch.5.043158
apa: Scharwald, D., Meier, T., & Sharapova, P. (2023). Phase sensitivity of
spatially broadband high-gain SU(1,1) interferometers. Physical Review Research,
5(4), Article 043158. https://doi.org/10.1103/physrevresearch.5.043158
bibtex: '@article{Scharwald_Meier_Sharapova_2023, title={Phase sensitivity of spatially
broadband high-gain SU(1,1) interferometers}, volume={5}, DOI={10.1103/physrevresearch.5.043158},
number={4043158}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Scharwald, Dennis and Meier, Torsten and Sharapova, Polina},
year={2023} }'
chicago: Scharwald, Dennis, Torsten Meier, and Polina Sharapova. “Phase Sensitivity
of Spatially Broadband High-Gain SU(1,1) Interferometers.” Physical Review
Research 5, no. 4 (2023). https://doi.org/10.1103/physrevresearch.5.043158.
ieee: 'D. Scharwald, T. Meier, and P. Sharapova, “Phase sensitivity of spatially
broadband high-gain SU(1,1) interferometers,” Physical Review Research,
vol. 5, no. 4, Art. no. 043158, 2023, doi: 10.1103/physrevresearch.5.043158.'
mla: Scharwald, Dennis, et al. “Phase Sensitivity of Spatially Broadband High-Gain
SU(1,1) Interferometers.” Physical Review Research, vol. 5, no. 4, 043158,
American Physical Society (APS), 2023, doi:10.1103/physrevresearch.5.043158.
short: D. Scharwald, T. Meier, P. Sharapova, Physical Review Research 5 (2023).
date_created: 2024-08-30T04:48:05Z
date_updated: 2026-02-01T13:21:22Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '27'
doi: 10.1103/physrevresearch.5.043158
intvolume: ' 5'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://journals.aps.org/prresearch/pdf/10.1103/PhysRevResearch.5.043158
oa: '1'
project:
- _id: '53'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '174'
name: 'TRR 142 - C10: TRR 142 - Erzeugung und Charakterisierung von Quantenlicht
in nichtlinearen Systemen: Eine theoretische Analyse (C10*)'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers
type: journal_article
user_id: '55907'
volume: 5
year: '2023'
...
---
_id: '31059'
abstract:
- lang: eng
text: In this article we prove meromorphic continuation of weighted zeta functions
in the framework of open hyperbolic systems by using the meromorphically continued
restricted resolvent of Dyatlov and Guillarmou (2016). We obtain a residue formula
proving equality between residues of weighted zetas and invariant Ruelle distributions.
We combine this equality with results of Guillarmou, Hilgert and Weich (2021)
in order to relate the residues to Patterson-Sullivan distributions. Finally we
provide proof-of-principle results concerning the numerical calculation of invariant
Ruelle distributions for 3-disc scattering systems.
author:
- first_name: Philipp
full_name: Schütte, Philipp
id: '50168'
last_name: Schütte
- first_name: Tobias
full_name: Weich, Tobias
id: '49178'
last_name: Weich
orcid: 0000-0002-9648-6919
- first_name: Sonja
full_name: Barkhofen, Sonja
id: '48188'
last_name: Barkhofen
citation:
ama: Schütte P, Weich T, Barkhofen S. Meromorphic Continuation of Weighted Zeta
Functions on Open Hyperbolic Systems. Communications in Mathematical Physics.
2023;398:655-678. doi:https://doi.org/10.1007/s00220-022-04538-z
apa: Schütte, P., Weich, T., & Barkhofen, S. (2023). Meromorphic Continuation
of Weighted Zeta Functions on Open Hyperbolic Systems. Communications in Mathematical
Physics, 398, 655–678. https://doi.org/10.1007/s00220-022-04538-z
bibtex: '@article{Schütte_Weich_Barkhofen_2023, title={Meromorphic Continuation
of Weighted Zeta Functions on Open Hyperbolic Systems}, volume={398}, DOI={https://doi.org/10.1007/s00220-022-04538-z},
journal={Communications in Mathematical Physics}, author={Schütte, Philipp and
Weich, Tobias and Barkhofen, Sonja}, year={2023}, pages={655–678} }'
chicago: 'Schütte, Philipp, Tobias Weich, and Sonja Barkhofen. “Meromorphic Continuation
of Weighted Zeta Functions on Open Hyperbolic Systems.” Communications in Mathematical
Physics 398 (2023): 655–78. https://doi.org/10.1007/s00220-022-04538-z.'
ieee: 'P. Schütte, T. Weich, and S. Barkhofen, “Meromorphic Continuation of Weighted
Zeta Functions on Open Hyperbolic Systems,” Communications in Mathematical
Physics, vol. 398, pp. 655–678, 2023, doi: https://doi.org/10.1007/s00220-022-04538-z.'
mla: Schütte, Philipp, et al. “Meromorphic Continuation of Weighted Zeta Functions
on Open Hyperbolic Systems.” Communications in Mathematical Physics, vol.
398, 2023, pp. 655–78, doi:https://doi.org/10.1007/s00220-022-04538-z.
short: P. Schütte, T. Weich, S. Barkhofen, Communications in Mathematical Physics
398 (2023) 655–678.
date_created: 2022-05-04T12:27:46Z
date_updated: 2026-02-18T10:41:07Z
department:
- _id: '10'
- _id: '548'
- _id: '623'
- _id: '15'
doi: https://doi.org/10.1007/s00220-022-04538-z
external_id:
arxiv:
- '2112.05791'
intvolume: ' 398'
language:
- iso: eng
page: 655-678
publication: Communications in Mathematical Physics
status: public
title: Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems
type: journal_article
user_id: '49178'
volume: 398
year: '2023'
...
---
_id: '61252'
abstract:
- lang: eng
text: AbstractThe biexciton‐exciton emission cascade
commonly used in quantum‐dot systems to generate polarization entanglement yields
photons with intrinsically limited indistinguishability. In the present work,
it focuses on the generation of pairs of photons with high degrees of polarization
entanglement and simultaneously high indistinguishability. It achieves this goal
by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates
that a suitably tailored circular Bragg reflector fulfills the requirements of
sufficient selective Purcell enhancement of biexciton emission paired with spectrally
broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical
study combines (i) the optimization of realistic photonic structures solving Maxwell's
equations from which model parameters are extracted as input for (ii) microscopic
simulations of quantum‐dot cavity excitation dynamics with full access to photon
properties. It reports non‐trivial dependencies on system parameters and use the
predictive power of the combined theoretical approach to determine the optimal
range of Purcell enhancement that maximizes indistinguishability and entanglement
to near unity values, here specifically for the telecom C‐band at 1550 nm.
article_number: '2300142'
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Klaus D.
full_name: Jöns, Klaus D.
id: '85353'
last_name: Jöns
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Siebert D, Jöns KD, Förstner J, Schumacher S. On‐Demand Indistinguishable
and Entangled Photons Using Tailored Cavity Designs. Advanced Quantum Technologies.
2023;7(1). doi:10.1002/qute.202300142
apa: Bauch, D., Siebert, D., Jöns, K. D., Förstner, J., & Schumacher, S. (2023).
On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.
Advanced Quantum Technologies, 7(1), Article 2300142. https://doi.org/10.1002/qute.202300142
bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, volume={7},
DOI={10.1002/qute.202300142},
number={12300142}, journal={Advanced Quantum Technologies}, publisher={Wiley},
author={Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens
and Schumacher, Stefan}, year={2023} }'
chicago: Bauch, David, Dustin Siebert, Klaus D. Jöns, Jens Förstner, and Stefan
Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored
Cavity Designs.” Advanced Quantum Technologies 7, no. 1 (2023). https://doi.org/10.1002/qute.202300142.
ieee: 'D. Bauch, D. Siebert, K. D. Jöns, J. Förstner, and S. Schumacher, “On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” Advanced
Quantum Technologies, vol. 7, no. 1, Art. no. 2300142, 2023, doi: 10.1002/qute.202300142.'
mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using
Tailored Cavity Designs.” Advanced Quantum Technologies, vol. 7, no. 1,
2300142, Wiley, 2023, doi:10.1002/qute.202300142.
short: D. Bauch, D. Siebert, K.D. Jöns, J. Förstner, S. Schumacher, Advanced Quantum
Technologies 7 (2023).
date_created: 2025-09-12T11:11:56Z
date_updated: 2025-09-12T11:16:12Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '642'
- _id: '61'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '429'
- _id: '27'
- _id: '623'
doi: 10.1002/qute.202300142
intvolume: ' 7'
issue: '1'
language:
- iso: eng
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: '55'
name: TRR 142 - Project Area B
- _id: '56'
name: TRR 142 - Project Area C
- _id: '167'
name: 'TRR 142; TP B06: Ultraschnelle kohärente opto-elektronische Kontrolle eines
photonischen Quantensystems'
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: Advanced Quantum Technologies
publication_identifier:
issn:
- 2511-9044
- 2511-9044
publication_status: published
publisher: Wiley
status: public
title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs
type: journal_article
user_id: '16199'
volume: 7
year: '2023'
...
---
_id: '61266'
abstract:
- lang: eng
text: This review examines the use of continuous-variable spectroscopy techniques
for investigating quantum coherence and light-matter interactions in semiconductor
systems with ultrafast dynamics. Special emphasis is placed on multichannel homodyne
detection as a powerful tool to measure the quantum coherence and the full density
matrix of a polariton system. Observations, such as coherence times that exceed
the nanosecond scale obtained by monitoring the temporal decay of quantum coherence
in a polariton condensate, are discussed. Proof-of-concept experiments and numerical
simulations that demonstrate the enhanced resourcefulness of the produced system
states for modern quantum protocols are assessed. The combination of tailored
resource quantifiers and ultrafast spectroscopy techniques that have recently
been demonstrated paves the way for future applications of quantum information
technologies.
article_number: '2997'
author:
- first_name: Carolin
full_name: Lüders, Carolin
last_name: Lüders
- first_name: Franziska
full_name: Barkhausen, Franziska
id: '63631'
last_name: Barkhausen
- first_name: Matthias
full_name: Pukrop, Matthias
last_name: Pukrop
- first_name: Elena
full_name: Rozas, Elena
last_name: Rozas
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Marc
full_name: Aßmann, Marc
last_name: Aßmann
citation:
ama: Lüders C, Barkhausen F, Pukrop M, et al. Continuous-variable quantum optics
and resource theory for ultrafast semiconductor spectroscopy [Invited]. Optical
Materials Express. 2023;13(11). doi:10.1364/ome.497006
apa: Lüders, C., Barkhausen, F., Pukrop, M., Rozas, E., Sperling, J., Schumacher,
S., & Aßmann, M. (2023). Continuous-variable quantum optics and resource theory
for ultrafast semiconductor spectroscopy [Invited]. Optical Materials Express,
13(11), Article 2997. https://doi.org/10.1364/ome.497006
bibtex: '@article{Lüders_Barkhausen_Pukrop_Rozas_Sperling_Schumacher_Aßmann_2023,
title={Continuous-variable quantum optics and resource theory for ultrafast semiconductor
spectroscopy [Invited]}, volume={13}, DOI={10.1364/ome.497006},
number={112997}, journal={Optical Materials Express}, publisher={Optica Publishing
Group}, author={Lüders, Carolin and Barkhausen, Franziska and Pukrop, Matthias
and Rozas, Elena and Sperling, Jan and Schumacher, Stefan and Aßmann, Marc}, year={2023}
}'
chicago: Lüders, Carolin, Franziska Barkhausen, Matthias Pukrop, Elena Rozas, Jan
Sperling, Stefan Schumacher, and Marc Aßmann. “Continuous-Variable Quantum Optics
and Resource Theory for Ultrafast Semiconductor Spectroscopy [Invited].” Optical
Materials Express 13, no. 11 (2023). https://doi.org/10.1364/ome.497006.
ieee: 'C. Lüders et al., “Continuous-variable quantum optics and resource
theory for ultrafast semiconductor spectroscopy [Invited],” Optical Materials
Express, vol. 13, no. 11, Art. no. 2997, 2023, doi: 10.1364/ome.497006.'
mla: Lüders, Carolin, et al. “Continuous-Variable Quantum Optics and Resource Theory
for Ultrafast Semiconductor Spectroscopy [Invited].” Optical Materials Express,
vol. 13, no. 11, 2997, Optica Publishing Group, 2023, doi:10.1364/ome.497006.
short: C. Lüders, F. Barkhausen, M. Pukrop, E. Rozas, J. Sperling, S. Schumacher,
M. Aßmann, Optical Materials Express 13 (2023).
date_created: 2025-09-12T11:40:26Z
date_updated: 2025-09-12T11:41:42Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '706'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '623'
doi: 10.1364/ome.497006
intvolume: ' 13'
issue: '11'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: Optical Materials Express
publication_identifier:
issn:
- 2159-3930
publication_status: published
publisher: Optica Publishing Group
status: public
title: Continuous-variable quantum optics and resource theory for ultrafast semiconductor
spectroscopy [Invited]
type: journal_article
user_id: '16199'
volume: 13
year: '2023'
...
---
_id: '38541'
author:
- first_name: Sonja
full_name: Barkhofen, Sonja
id: '48188'
last_name: Barkhofen
- 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: Barkhofen S, Brecht B, Silberhorn C. Verschränkung wie am Fließband. Physik
in unserer Zeit. 2023;54(1):10-11. doi:https://doi.org/10.1002/piuz.202370107
apa: Barkhofen, S., Brecht, B., & Silberhorn, C. (2023). Verschränkung wie am
Fließband. Physik in unserer Zeit, 54(1), 10–11. https://doi.org/10.1002/piuz.202370107
bibtex: '@article{Barkhofen_Brecht_Silberhorn_2023, title={Verschränkung wie am
Fließband}, volume={54}, DOI={https://doi.org/10.1002/piuz.202370107},
number={1}, journal={Physik in unserer Zeit}, publisher={Wiley}, author={Barkhofen,
Sonja and Brecht, Benjamin and Silberhorn, Christine}, year={2023}, pages={10–11}
}'
chicago: 'Barkhofen, Sonja, Benjamin Brecht, and Christine Silberhorn. “Verschränkung
wie am Fließband.” Physik in unserer Zeit 54, no. 1 (2023): 10–11. https://doi.org/10.1002/piuz.202370107.'
ieee: 'S. Barkhofen, B. Brecht, and C. Silberhorn, “Verschränkung wie am Fließband,”
Physik in unserer Zeit, vol. 54, no. 1, pp. 10–11, 2023, doi: https://doi.org/10.1002/piuz.202370107.'
mla: Barkhofen, Sonja, et al. “Verschränkung wie am Fließband.” Physik in unserer
Zeit, vol. 54, no. 1, Wiley, 2023, pp. 10–11, doi:https://doi.org/10.1002/piuz.202370107.
short: S. Barkhofen, B. Brecht, C. Silberhorn, Physik in unserer Zeit 54 (2023)
10–11.
date_created: 2023-01-24T08:04:47Z
date_updated: 2025-12-04T13:36:42Z
department:
- _id: '623'
- _id: '15'
doi: https://doi.org/10.1002/piuz.202370107
intvolume: ' 54'
issue: '1'
language:
- iso: ger
page: 10-11
publication: Physik in unserer Zeit
publication_status: published
publisher: Wiley
status: public
title: Verschränkung wie am Fließband
type: journal_article
user_id: '48188'
volume: 54
year: '2023'
...
---
_id: '36471'
abstract:
- lang: eng
text: Superconducting nanowire single-photon detectors (SNSPDs) show near
unity efficiency, low dark count rate, and short recovery time. Combining these
characteristics with temporal control of SNSPDs broadens their applications as
in active de-latching for higher dynamic range counting or temporal filtering
for pump-probe spectroscopy or LiDAR. To that end, we demonstrate active gating
of an SNSPD with a minimum off-to-on rise time of 2.4 ns and a total gate length
of 5.0 ns. We show how the rise time depends on the inductance of the detector
in combination with the control electronics. The gate window is demonstrated to
be fully and freely, electrically tunable up to 500 ns at a repetition rate of
1.0 MHz, as well as ungated, free-running operation. Control electronics to generate
the gating are mounted on the 2.3 K stage of a closed-cycle sorption cryostat,
while the detector is operated on the cold stage at 0.8 K. We show that the efficiency
and timing jitter of the detector is not altered during the on-time of the gating
window. We exploit gated operation to demonstrate a method to increase in the
photon counting dynamic range by a factor 11.2, as well as temporal filtering
of a strong pump in an emulated pump-probe experiment.
article_number: '610'
author:
- first_name: Thomas
full_name: Hummel, Thomas
id: '83846'
last_name: Hummel
orcid: 0000-0001-8627-2119
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Jin
full_name: Chang, Jin
last_name: Chang
- first_name: Andreas
full_name: Fognini, Andreas
last_name: Fognini
- first_name: Stephan
full_name: Steinhauer, Stephan
last_name: Steinhauer
- first_name: Val
full_name: Zwiller, Val
last_name: Zwiller
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Hummel T, Widhalm A, Höpker JP, et al. Nanosecond gating of superconducting
nanowire single-photon detectors using cryogenic bias circuitry. Optics Express.
2023;31(1). doi:10.1364/oe.472058
apa: Hummel, T., Widhalm, A., Höpker, J. P., Jöns, K., Chang, J., Fognini, A., Steinhauer,
S., Zwiller, V., Zrenner, A., & Bartley, T. (2023). Nanosecond gating of superconducting
nanowire single-photon detectors using cryogenic bias circuitry. Optics Express,
31(1), Article 610. https://doi.org/10.1364/oe.472058
bibtex: '@article{Hummel_Widhalm_Höpker_Jöns_Chang_Fognini_Steinhauer_Zwiller_Zrenner_Bartley_2023,
title={Nanosecond gating of superconducting nanowire single-photon detectors using
cryogenic bias circuitry}, volume={31}, DOI={10.1364/oe.472058},
number={1610}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Hummel, Thomas and Widhalm, Alex and Höpker, Jan Philipp and Jöns, Klaus
and Chang, Jin and Fognini, Andreas and Steinhauer, Stephan and Zwiller, Val and
Zrenner, Artur and Bartley, Tim}, year={2023} }'
chicago: Hummel, Thomas, Alex Widhalm, Jan Philipp Höpker, Klaus Jöns, Jin Chang,
Andreas Fognini, Stephan Steinhauer, Val Zwiller, Artur Zrenner, and Tim Bartley.
“Nanosecond Gating of Superconducting Nanowire Single-Photon Detectors Using Cryogenic
Bias Circuitry.” Optics Express 31, no. 1 (2023). https://doi.org/10.1364/oe.472058.
ieee: 'T. Hummel et al., “Nanosecond gating of superconducting nanowire single-photon
detectors using cryogenic bias circuitry,” Optics Express, vol. 31, no.
1, Art. no. 610, 2023, doi: 10.1364/oe.472058.'
mla: Hummel, Thomas, et al. “Nanosecond Gating of Superconducting Nanowire Single-Photon
Detectors Using Cryogenic Bias Circuitry.” Optics Express, vol. 31, no.
1, 610, Optica Publishing Group, 2023, doi:10.1364/oe.472058.
short: T. Hummel, A. Widhalm, J.P. Höpker, K. Jöns, J. Chang, A. Fognini, S. Steinhauer,
V. Zwiller, A. Zrenner, T. Bartley, Optics Express 31 (2023).
date_created: 2023-01-12T14:46:40Z
date_updated: 2025-12-11T13:05:14Z
department:
- _id: '15'
- _id: '623'
- _id: '230'
- _id: '429'
- _id: '642'
doi: 10.1364/oe.472058
intvolume: ' 31'
issue: '1'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Nanosecond gating of superconducting nanowire single-photon detectors using
cryogenic bias circuitry
type: journal_article
user_id: '48188'
volume: 31
year: '2023'
...
---
_id: '63043'
abstract:
- lang: eng
text: Spatial modes of light have become highly attractive to increase the dimension
and, thereby, security and information capacity in quantum key distribution (QKD).
So far, only transverse electric field components have been considered, while
longitudinal polarization components have remained neglected. Here, we present
an approach to include all three spatial dimensions of electric field oscillation
in QKD by implementing our tunable, on-a-chip vector beam decoder (VBD). This
inversely designed device pioneers the "preparation" and "measurement" of three-dimensionally
polarized mutually unbiased basis states for high-dimensional (HD) QKD and paves
the way for the integration of HD QKD with spatial modes in multifunctional on-a-chip
photonics platforms.
citation:
ama: Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes. Published online 2023. doi:10.48550/ARXIV.2304.12296
apa: Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes. (2023). https://doi.org/10.48550/ARXIV.2304.12296
bibtex: '@article{Tunable vector beam decoder by inverse design for high-dimensional
quantum key distribution with 3D polarized spatial modes_2023, DOI={10.48550/ARXIV.2304.12296},
year={2023} }'
chicago: “Tunable Vector Beam Decoder by Inverse Design for High-Dimensional Quantum
Key Distribution with 3D Polarized Spatial Modes,” 2023. https://doi.org/10.48550/ARXIV.2304.12296.
ieee: '“Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes,” 2023, doi: 10.48550/ARXIV.2304.12296.'
mla: Tunable Vector Beam Decoder by Inverse Design for High-Dimensional Quantum
Key Distribution with 3D Polarized Spatial Modes. 2023, doi:10.48550/ARXIV.2304.12296.
short: (2023).
date_created: 2025-12-11T20:37:08Z
date_updated: 2025-12-11T20:46:50Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: 10.48550/ARXIV.2304.12296
status: public
title: Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes
type: journal_article
user_id: '112030'
year: '2023'
...
---
_id: '45578'
abstract:
- lang: eng
text: A frequency-flexible Nyquist pulse synthesizer is presented with optical pulse
bandwidths up to fopt=100 GHz and repetition rates equal to fopt/9, fabricated
in an electronic-photonic co-integrated platform utilizing linear on-chip drivers.
author:
- first_name: Christian
full_name: Kress, Christian
id: '13256'
last_name: Kress
orcid: 0000-0002-4403-2237
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Kress C, Schwabe T, Silberhorn C, Scheytt JC. Generation of 100 GHz Periodic
Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic
Platform. In: Conference on Lasers and Electro-Optics (CLEO) 2023. Optica
Publishing Group; 2023. doi:https://doi.org/10.1364/CLEO_SI.2023.SF1P.6'
apa: Kress, C., Schwabe, T., Silberhorn, C., & Scheytt, J. C. (2023). Generation
of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a
Silicon Electronic-Photonic Platform. Conference on Lasers and Electro-Optics
(CLEO) 2023. Conference on Lasers and Electro-Optics (CLEO), San Jose, CA,
USA. https://doi.org/10.1364/CLEO_SI.2023.SF1P.6
bibtex: '@inproceedings{Kress_Schwabe_Silberhorn_Scheytt_2023, title={Generation
of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a
Silicon Electronic-Photonic Platform}, DOI={https://doi.org/10.1364/CLEO_SI.2023.SF1P.6},
booktitle={ Conference on Lasers and Electro-Optics (CLEO) 2023}, publisher={Optica
Publishing Group}, author={Kress, Christian and Schwabe, Tobias and Silberhorn,
Christine and Scheytt, J. Christoph}, year={2023} }'
chicago: Kress, Christian, Tobias Schwabe, Christine Silberhorn, and J. Christoph
Scheytt. “Generation of 100 GHz Periodic Nyquist Pulses Using Cascaded Mach-Zehnder
Modulators in a Silicon Electronic-Photonic Platform.” In Conference on Lasers
and Electro-Optics (CLEO) 2023. Optica Publishing Group, 2023. https://doi.org/10.1364/CLEO_SI.2023.SF1P.6.
ieee: 'C. Kress, T. Schwabe, C. Silberhorn, and J. C. Scheytt, “Generation of 100
GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon
Electronic-Photonic Platform,” presented at the Conference on Lasers and Electro-Optics
(CLEO), San Jose, CA, USA, 2023, doi: https://doi.org/10.1364/CLEO_SI.2023.SF1P.6.'
mla: Kress, Christian, et al. “Generation of 100 GHz Periodic Nyquist Pulses Using
Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic Platform.”
Conference on Lasers and Electro-Optics (CLEO) 2023, Optica Publishing Group,
2023, doi:https://doi.org/10.1364/CLEO_SI.2023.SF1P.6.
short: 'C. Kress, T. Schwabe, C. Silberhorn, J.C. Scheytt, in: Conference on Lasers
and Electro-Optics (CLEO) 2023, Optica Publishing Group, 2023.'
conference:
end_date: 2023-05-12
location: San Jose, CA, USA
name: ' Conference on Lasers and Electro-Optics (CLEO)'
start_date: 2023-05-08
date_created: 2023-06-12T10:25:25Z
date_updated: 2025-12-12T11:26:12Z
department:
- _id: '58'
- _id: '230'
- _id: '623'
doi: https://doi.org/10.1364/CLEO_SI.2023.SF1P.6
language:
- iso: eng
project:
- _id: '302'
name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC'
- _id: '175'
name: 'TRR 142; TP C11: Kompakte Photonenpaar-Quelle mit ultraschnellen Modulatoren
auf Basis von CMOS und LNOI'
publication: ' Conference on Lasers and Electro-Optics (CLEO) 2023'
publisher: Optica Publishing Group
status: public
title: Generation of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators
in a Silicon Electronic-Photonic Platform
type: conference
user_id: '13256'
year: '2023'
...
---
_id: '46468'
article_number: '023701'
author:
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Lange NA, Schapeler T, Höpker JP, Protte M, Bartley T. Degenerate photons from
a cryogenic spontaneous parametric down-conversion source. Physical Review
A. 2023;108(2). doi:10.1103/physreva.108.023701
apa: Lange, N. A., Schapeler, T., Höpker, J. P., Protte, M., & Bartley, T. (2023).
Degenerate photons from a cryogenic spontaneous parametric down-conversion source.
Physical Review A, 108(2), Article 023701. https://doi.org/10.1103/physreva.108.023701
bibtex: '@article{Lange_Schapeler_Höpker_Protte_Bartley_2023, title={Degenerate
photons from a cryogenic spontaneous parametric down-conversion source}, volume={108},
DOI={10.1103/physreva.108.023701},
number={2023701}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Lange, Nina Amelie and Schapeler, Timon and Höpker, Jan Philipp
and Protte, Maximilian and Bartley, Tim}, year={2023} }'
chicago: Lange, Nina Amelie, Timon Schapeler, Jan Philipp Höpker, Maximilian Protte,
and Tim Bartley. “Degenerate Photons from a Cryogenic Spontaneous Parametric Down-Conversion
Source.” Physical Review A 108, no. 2 (2023). https://doi.org/10.1103/physreva.108.023701.
ieee: 'N. A. Lange, T. Schapeler, J. P. Höpker, M. Protte, and T. Bartley, “Degenerate
photons from a cryogenic spontaneous parametric down-conversion source,” Physical
Review A, vol. 108, no. 2, Art. no. 023701, 2023, doi: 10.1103/physreva.108.023701.'
mla: Lange, Nina Amelie, et al. “Degenerate Photons from a Cryogenic Spontaneous
Parametric Down-Conversion Source.” Physical Review A, vol. 108, no. 2,
023701, American Physical Society (APS), 2023, doi:10.1103/physreva.108.023701.
short: N.A. Lange, T. Schapeler, J.P. Höpker, M. Protte, T. Bartley, Physical Review
A 108 (2023).
date_created: 2023-08-10T07:34:54Z
date_updated: 2025-12-15T09:24:16Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1103/physreva.108.023701
intvolume: ' 108'
issue: '2'
language:
- iso: eng
project:
- _id: '171'
name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Degenerate photons from a cryogenic spontaneous parametric down-conversion
source
type: journal_article
user_id: '56843'
volume: 108
year: '2023'
...