---
_id: '44088'
abstract:
- lang: eng
text: 'Hole polarons and defect-bound exciton polarons in lithium niobate are investigated
by means of density-functional theory, where the localization of the holes is
achieved by applying the +U approach to the oxygen 2p orbitals. We find three
principal configurations of hole polarons: (i) self-trapped holes localized at
displaced regular oxygen atoms and (ii) two other configurations bound to a lithium
vacancy either at a threefold coordinated oxygen atom above or at a two-fold coordinated
oxygen atom below the defect. The latter is the most stable and is in excellent
quantitative agreement with measured g factors from electron paramagnetic resonance.
Due to the absence of mid-gap states, none of these hole polarons can explain
the broad optical absorption centered between 2.5 and 2.8 eV that is observed
in transient absorption spectroscopy, but such states appear if a free electron
polaron is trapped at the same lithium vacancy as the bound hole polaron, resulting
in an exciton polaron. The dielectric function calculated by solving the Bethe–Salpeter
equation indeed yields an optical peak at 2.6 eV in agreement with the two-photon
experiments. The coexistence of hole and exciton polarons, which are simultaneously
created in optical excitations, thus satisfactorily explains the reported experimental
data.'
article_number: '1586'
article_type: original
author:
- first_name: Falko
full_name: Schmidt, Falko
id: '35251'
last_name: Schmidt
orcid: 0000-0002-5071-5528
- first_name: Agnieszka L.
full_name: Kozub, Agnieszka L.
id: '77566'
last_name: Kozub
orcid: 0000-0001-6584-0201
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
citation:
ama: Schmidt F, Kozub AL, Gerstmann U, Schmidt WG, Schindlmayr A. A density-functional
theory study of hole and defect-bound exciton polarons in lithium niobate. Crystals.
2022;12(11). doi:10.3390/cryst12111586
apa: Schmidt, F., Kozub, A. L., Gerstmann, U., Schmidt, W. G., & Schindlmayr,
A. (2022). A density-functional theory study of hole and defect-bound exciton
polarons in lithium niobate. Crystals, 12(11), Article 1586. https://doi.org/10.3390/cryst12111586
bibtex: '@article{Schmidt_Kozub_Gerstmann_Schmidt_Schindlmayr_2022, title={A density-functional
theory study of hole and defect-bound exciton polarons in lithium niobate}, volume={12},
DOI={10.3390/cryst12111586},
number={111586}, journal={Crystals}, publisher={MDPI AG}, author={Schmidt, Falko
and Kozub, Agnieszka L. and Gerstmann, Uwe and Schmidt, Wolf Gero and Schindlmayr,
Arno}, year={2022} }'
chicago: Schmidt, Falko, Agnieszka L. Kozub, Uwe Gerstmann, Wolf Gero Schmidt, and
Arno Schindlmayr. “A Density-Functional Theory Study of Hole and Defect-Bound
Exciton Polarons in Lithium Niobate.” Crystals 12, no. 11 (2022). https://doi.org/10.3390/cryst12111586.
ieee: 'F. Schmidt, A. L. Kozub, U. Gerstmann, W. G. Schmidt, and A. Schindlmayr,
“A density-functional theory study of hole and defect-bound exciton polarons in
lithium niobate,” Crystals, vol. 12, no. 11, Art. no. 1586, 2022, doi:
10.3390/cryst12111586.'
mla: Schmidt, Falko, et al. “A Density-Functional Theory Study of Hole and Defect-Bound
Exciton Polarons in Lithium Niobate.” Crystals, vol. 12, no. 11, 1586,
MDPI AG, 2022, doi:10.3390/cryst12111586.
short: F. Schmidt, A.L. Kozub, U. Gerstmann, W.G. Schmidt, A. Schindlmayr, Crystals
12 (2022).
date_created: 2023-04-20T13:52:44Z
date_updated: 2025-09-18T13:28:05Z
ddc:
- '530'
department:
- _id: '15'
- _id: '296'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.3390/cryst12111586
external_id:
isi:
- '000895837200001'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2023-06-11T23:59:27Z
date_updated: 2023-06-12T00:22:51Z
description: Creative Commons Attribution 4.0 International Public License (CC BY
4.0)
file_id: '45570'
file_name: crystals-12-01586-v2.pdf
file_size: 1762554
relation: main_file
title: A density-functional theory study of hole and defect-bound exciton polarons
in lithium niobate
file_date_updated: 2023-06-12T00:22:51Z
has_accepted_license: '1'
intvolume: ' 12'
isi: '1'
issue: '11'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
oa: '1'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '69'
name: 'TRR 142 - B04: TRR 142 - Subproject B04'
- _id: '168'
name: 'TRR 142 - B07: TRR 142 - Subproject B07'
- _id: '166'
name: 'TRR 142 - A11: TRR 142 - Subproject A11'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Crystals
publication_identifier:
eissn:
- 2073-4352
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: A density-functional theory study of hole and defect-bound exciton polarons
in lithium niobate
type: journal_article
user_id: '16199'
volume: 12
year: '2022'
...
---
_id: '34230'
abstract:
- lang: eng
text: We present the design and experimental characterization of a silicon nitride
pulse interleaver based on coupled resonator optical waveguide filters. In order
to achieve a targeted free spectral range of 1.44 THz, which is large given the
reduced optical confinement of the silicon nitride platform, individual ring resonators
are designed with tapered waveguides. Its application to time-interleaved photonically-assisted
ADCs is analyzed by combining experimental characterization of the photonic integrated
circuit with a comprehensive model of the entire ADC. The impact of fundamental
signal distortion and noise sources affecting the converter is investigated and
suitable equalization techniques at the digital signal processing level are evaluated.
The novel application of a simple but powerful equalization filter in the DSP
domain allows for a significant improvement of the digitized signal SNR. An ENOB
of 5 over a 75 GHz bandwidth (150 GS/s) and an ENOB of 4.3 over a 100 GHz bandwidth
(200 GS/s) are expected to be achievable with compact and off-the-shelf single-section
semiconductor mode locked lasers, that can be further improved with lower noise
light sources.
article_number: '4444'
author:
- first_name: Andrea
full_name: Zazzi, Andrea
last_name: Zazzi
- first_name: Juliana
full_name: Müller, Juliana
last_name: Müller
- first_name: Ibrahim
full_name: Ghannam, Ibrahim
last_name: Ghannam
- first_name: Moritz
full_name: Battermann, Moritz
last_name: Battermann
- first_name: Gayatri Vasudevan
full_name: Rajeswari, Gayatri Vasudevan
last_name: Rajeswari
- first_name: Maxim
full_name: Weizel, Maxim
id: '44271'
last_name: Weizel
orcid: https://orcid.org/0000-0003-2699-9839
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: https://orcid.org/0000-0002-5950-6618
- first_name: Jeremy
full_name: Witzens, Jeremy
last_name: Witzens
citation:
ama: 'Zazzi A, Müller J, Ghannam I, et al. Wideband SiN pulse interleaver for optically-enabled
analog-to-digital conversion: a device-to-system analysis with cyclic equalization.
Optics Express. 2022;30(3). doi:10.1364/oe.441406'
apa: 'Zazzi, A., Müller, J., Ghannam, I., Battermann, M., Rajeswari, G. V., Weizel,
M., Scheytt, J. C., & Witzens, J. (2022). Wideband SiN pulse interleaver for
optically-enabled analog-to-digital conversion: a device-to-system analysis with
cyclic equalization. Optics Express, 30(3), Article 4444. https://doi.org/10.1364/oe.441406'
bibtex: '@article{Zazzi_Müller_Ghannam_Battermann_Rajeswari_Weizel_Scheytt_Witzens_2022,
title={Wideband SiN pulse interleaver for optically-enabled analog-to-digital
conversion: a device-to-system analysis with cyclic equalization}, volume={30},
DOI={10.1364/oe.441406}, number={34444},
journal={Optics Express}, publisher={Optica Publishing Group}, author={Zazzi,
Andrea and Müller, Juliana and Ghannam, Ibrahim and Battermann, Moritz and Rajeswari,
Gayatri Vasudevan and Weizel, Maxim and Scheytt, J. Christoph and Witzens, Jeremy},
year={2022} }'
chicago: 'Zazzi, Andrea, Juliana Müller, Ibrahim Ghannam, Moritz Battermann, Gayatri
Vasudevan Rajeswari, Maxim Weizel, J. Christoph Scheytt, and Jeremy Witzens. “Wideband
SiN Pulse Interleaver for Optically-Enabled Analog-to-Digital Conversion: A Device-to-System
Analysis with Cyclic Equalization.” Optics Express 30, no. 3 (2022). https://doi.org/10.1364/oe.441406.'
ieee: 'A. Zazzi et al., “Wideband SiN pulse interleaver for optically-enabled
analog-to-digital conversion: a device-to-system analysis with cyclic equalization,”
Optics Express, vol. 30, no. 3, Art. no. 4444, 2022, doi: 10.1364/oe.441406.'
mla: 'Zazzi, Andrea, et al. “Wideband SiN Pulse Interleaver for Optically-Enabled
Analog-to-Digital Conversion: A Device-to-System Analysis with Cyclic Equalization.”
Optics Express, vol. 30, no. 3, 4444, Optica Publishing Group, 2022, doi:10.1364/oe.441406.'
short: A. Zazzi, J. Müller, I. Ghannam, M. Battermann, G.V. Rajeswari, M. Weizel,
J.C. Scheytt, J. Witzens, Optics Express 30 (2022).
date_created: 2022-12-06T10:15:54Z
date_updated: 2025-10-30T09:12:01Z
department:
- _id: '58'
- _id: '230'
doi: 10.1364/oe.441406
intvolume: ' 30'
issue: '3'
language:
- iso: eng
project:
- _id: '303'
name: 'SPP 2111; TP: Ultrabreitbandiger Photonisch-Elektronischer Analog-Digital-Wandler
(PACE) - Phase 2'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: 'Wideband SiN pulse interleaver for optically-enabled analog-to-digital conversion:
a device-to-system analysis with cyclic equalization'
type: journal_article
user_id: '44271'
volume: 30
year: '2022'
...
---
_id: '34239'
author:
- first_name: Meysam
full_name: Bahmanian, Meysam
id: '69233'
last_name: Bahmanian
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: https://orcid.org/0000-0002-5950-6618
citation:
ama: Bahmanian M, Scheytt JC. Noise Processes and Nonlinear Mechanisms in Optoelectronic
Phase-Locked Loop Using a Balanced Optical Microwave Phase Detector. IEEE Transactions
on Microwave Theory and Techniques. 2022;70(10):4422-4435. doi:10.1109/tmtt.2022.3197621
apa: Bahmanian, M., & Scheytt, J. C. (2022). Noise Processes and Nonlinear Mechanisms
in Optoelectronic Phase-Locked Loop Using a Balanced Optical Microwave Phase Detector.
IEEE Transactions on Microwave Theory and Techniques, 70(10), 4422–4435.
https://doi.org/10.1109/tmtt.2022.3197621
bibtex: '@article{Bahmanian_Scheytt_2022, title={Noise Processes and Nonlinear Mechanisms
in Optoelectronic Phase-Locked Loop Using a Balanced Optical Microwave Phase Detector},
volume={70}, DOI={10.1109/tmtt.2022.3197621},
number={10}, journal={IEEE Transactions on Microwave Theory and Techniques}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Bahmanian, Meysam and
Scheytt, J. Christoph}, year={2022}, pages={4422–4435} }'
chicago: 'Bahmanian, Meysam, and J. Christoph Scheytt. “Noise Processes and Nonlinear
Mechanisms in Optoelectronic Phase-Locked Loop Using a Balanced Optical Microwave
Phase Detector.” IEEE Transactions on Microwave Theory and Techniques 70,
no. 10 (2022): 4422–35. https://doi.org/10.1109/tmtt.2022.3197621.'
ieee: 'M. Bahmanian and J. C. Scheytt, “Noise Processes and Nonlinear Mechanisms
in Optoelectronic Phase-Locked Loop Using a Balanced Optical Microwave Phase Detector,”
IEEE Transactions on Microwave Theory and Techniques, vol. 70, no. 10,
pp. 4422–4435, 2022, doi: 10.1109/tmtt.2022.3197621.'
mla: Bahmanian, Meysam, and J. Christoph Scheytt. “Noise Processes and Nonlinear
Mechanisms in Optoelectronic Phase-Locked Loop Using a Balanced Optical Microwave
Phase Detector.” IEEE Transactions on Microwave Theory and Techniques,
vol. 70, no. 10, Institute of Electrical and Electronics Engineers (IEEE), 2022,
pp. 4422–35, doi:10.1109/tmtt.2022.3197621.
short: M. Bahmanian, J.C. Scheytt, IEEE Transactions on Microwave Theory and Techniques
70 (2022) 4422–4435.
date_created: 2022-12-06T11:05:28Z
date_updated: 2025-10-30T09:21:12Z
department:
- _id: '58'
- _id: '230'
doi: 10.1109/tmtt.2022.3197621
intvolume: ' 70'
issue: '10'
language:
- iso: eng
page: 4422-4435
project:
- _id: '298'
name: 'FOR 2863: Metrologie für die THz Kommunikation (Meteracom)'
- _id: '314'
name: 'FOR 2863: Metrologie für die THz Kommunikation, TP B2: Rückführbare Terahertz
Transceiver'
publication: IEEE Transactions on Microwave Theory and Techniques
publication_identifier:
issn:
- 0018-9480
- 1557-9670
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Noise Processes and Nonlinear Mechanisms in Optoelectronic Phase-Locked Loop
Using a Balanced Optical Microwave Phase Detector
type: journal_article
user_id: '44271'
volume: 70
year: '2022'
...
---
_id: '34094'
article_number: '201103'
author:
- first_name: Ying
full_name: Gao, Ying
last_name: Gao
- first_name: Yao
full_name: Li, Yao
last_name: Li
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Meini
full_name: Gao, Meini
last_name: Gao
- first_name: Haitao
full_name: Dai, Haitao
last_name: Dai
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Tingge
full_name: Gao, Tingge
last_name: Gao
citation:
ama: Gao Y, Li Y, Ma X, et al. Tilting nondispersive bands in an empty microcavity.
Applied Physics Letters. 2022;121(20). doi:10.1063/5.0093908
apa: Gao, Y., Li, Y., Ma, X., Gao, M., Dai, H., Schumacher, S., & Gao, T. (2022).
Tilting nondispersive bands in an empty microcavity. Applied Physics Letters,
121(20), Article 201103. https://doi.org/10.1063/5.0093908
bibtex: '@article{Gao_Li_Ma_Gao_Dai_Schumacher_Gao_2022, title={Tilting nondispersive
bands in an empty microcavity}, volume={121}, DOI={10.1063/5.0093908},
number={20201103}, journal={Applied Physics Letters}, publisher={AIP Publishing},
author={Gao, Ying and Li, Yao and Ma, Xuekai and Gao, Meini and Dai, Haitao and
Schumacher, Stefan and Gao, Tingge}, year={2022} }'
chicago: Gao, Ying, Yao Li, Xuekai Ma, Meini Gao, Haitao Dai, Stefan Schumacher,
and Tingge Gao. “Tilting Nondispersive Bands in an Empty Microcavity.” Applied
Physics Letters 121, no. 20 (2022). https://doi.org/10.1063/5.0093908.
ieee: 'Y. Gao et al., “Tilting nondispersive bands in an empty microcavity,”
Applied Physics Letters, vol. 121, no. 20, Art. no. 201103, 2022, doi:
10.1063/5.0093908.'
mla: Gao, Ying, et al. “Tilting Nondispersive Bands in an Empty Microcavity.” Applied
Physics Letters, vol. 121, no. 20, 201103, AIP Publishing, 2022, doi:10.1063/5.0093908.
short: Y. Gao, Y. Li, X. Ma, M. Gao, H. Dai, S. Schumacher, T. Gao, Applied Physics
Letters 121 (2022).
date_created: 2022-11-16T12:29:11Z
date_updated: 2025-12-05T13:50:49Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1063/5.0093908
intvolume: ' 121'
issue: '20'
keyword:
- Physics and Astronomy (miscellaneous)
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
name: 'TRR 142 - A4: TRR 142 - Subproject A4'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
publisher: AIP Publishing
status: public
title: Tilting nondispersive bands in an empty microcavity
type: journal_article
user_id: '16199'
volume: 121
year: '2022'
...
---
_id: '31937'
author:
- first_name: Yao
full_name: Li, Yao
last_name: Li
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Zaharias
full_name: Hatzopoulos, Zaharias
last_name: Hatzopoulos
- first_name: Pavlos G.
full_name: Savvidis, Pavlos G.
last_name: Savvidis
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Tingge
full_name: Gao, Tingge
last_name: Gao
citation:
ama: Li Y, Ma X, Hatzopoulos Z, Savvidis PG, Schumacher S, Gao T. Switching Off
a Microcavity Polariton Condensate near the Exceptional Point. ACS Photonics.
2022;9(6):2079-2086. doi:10.1021/acsphotonics.2c00288
apa: Li, Y., Ma, X., Hatzopoulos, Z., Savvidis, P. G., Schumacher, S., & Gao,
T. (2022). Switching Off a Microcavity Polariton Condensate near the Exceptional
Point. ACS Photonics, 9(6), 2079–2086. https://doi.org/10.1021/acsphotonics.2c00288
bibtex: '@article{Li_Ma_Hatzopoulos_Savvidis_Schumacher_Gao_2022, title={Switching
Off a Microcavity Polariton Condensate near the Exceptional Point}, volume={9},
DOI={10.1021/acsphotonics.2c00288},
number={6}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)},
author={Li, Yao and Ma, Xuekai and Hatzopoulos, Zaharias and Savvidis, Pavlos
G. and Schumacher, Stefan and Gao, Tingge}, year={2022}, pages={2079–2086} }'
chicago: 'Li, Yao, Xuekai Ma, Zaharias Hatzopoulos, Pavlos G. Savvidis, Stefan Schumacher,
and Tingge Gao. “Switching Off a Microcavity Polariton Condensate near the Exceptional
Point.” ACS Photonics 9, no. 6 (2022): 2079–86. https://doi.org/10.1021/acsphotonics.2c00288.'
ieee: 'Y. Li, X. Ma, Z. Hatzopoulos, P. G. Savvidis, S. Schumacher, and T. Gao,
“Switching Off a Microcavity Polariton Condensate near the Exceptional Point,”
ACS Photonics, vol. 9, no. 6, pp. 2079–2086, 2022, doi: 10.1021/acsphotonics.2c00288.'
mla: Li, Yao, et al. “Switching Off a Microcavity Polariton Condensate near the
Exceptional Point.” ACS Photonics, vol. 9, no. 6, American Chemical Society
(ACS), 2022, pp. 2079–86, doi:10.1021/acsphotonics.2c00288.
short: Y. Li, X. Ma, Z. Hatzopoulos, P.G. Savvidis, S. Schumacher, T. Gao, ACS Photonics
9 (2022) 2079–2086.
date_created: 2022-06-19T19:26:12Z
date_updated: 2025-12-05T13:51:31Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1021/acsphotonics.2c00288
intvolume: ' 9'
issue: '6'
language:
- iso: eng
page: 2079-2086
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
name: 'TRR 142 - A4: TRR 142 - Subproject A4'
- _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)
status: public
title: Switching Off a Microcavity Polariton Condensate near the Exceptional Point
type: journal_article
user_id: '16199'
volume: 9
year: '2022'
...
---
_id: '37713'
author:
- first_name: Fadis F.
full_name: Murzakhanov, Fadis F.
last_name: Murzakhanov
- first_name: Georgy Vladimirovich
full_name: Mamin, Georgy Vladimirovich
last_name: Mamin
- first_name: Sergei Borisovich
full_name: Orlinskii, Sergei Borisovich
last_name: Orlinskii
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Timur
full_name: Biktagirov, Timur
id: '65612'
last_name: Biktagirov
- first_name: Igor
full_name: Aharonovich, Igor
last_name: Aharonovich
- first_name: Andreas
full_name: Gottscholl, Andreas
last_name: Gottscholl
- first_name: Andreas
full_name: Sperlich, Andreas
last_name: Sperlich
- first_name: Vladimir
full_name: Dyakonov, Vladimir
last_name: Dyakonov
- first_name: Victor A.
full_name: Soltamov, Victor A.
last_name: Soltamov
citation:
ama: Murzakhanov FF, Mamin GV, Orlinskii SB, et al. Electron–Nuclear Coherent Coupling
and Nuclear Spin Readout through Optically Polarized VB–
Spin States in hBN. Nano Letters. 2022;22(7):2718-2724. doi:10.1021/acs.nanolett.1c04610
apa: Murzakhanov, F. F., Mamin, G. V., Orlinskii, S. B., Gerstmann, U., Schmidt,
W. G., Biktagirov, T., Aharonovich, I., Gottscholl, A., Sperlich, A., Dyakonov,
V., & Soltamov, V. A. (2022). Electron–Nuclear Coherent Coupling and Nuclear
Spin Readout through Optically Polarized VB– Spin States
in hBN. Nano Letters, 22(7), 2718–2724. https://doi.org/10.1021/acs.nanolett.1c04610
bibtex: '@article{Murzakhanov_Mamin_Orlinskii_Gerstmann_Schmidt_Biktagirov_Aharonovich_Gottscholl_Sperlich_Dyakonov_et
al._2022, title={Electron–Nuclear Coherent Coupling and Nuclear Spin Readout through
Optically Polarized VB– Spin States in hBN}, volume={22},
DOI={10.1021/acs.nanolett.1c04610},
number={7}, journal={Nano Letters}, publisher={American Chemical Society (ACS)},
author={Murzakhanov, Fadis F. and Mamin, Georgy Vladimirovich and Orlinskii, Sergei
Borisovich and Gerstmann, Uwe and Schmidt, Wolf Gero and Biktagirov, Timur and
Aharonovich, Igor and Gottscholl, Andreas and Sperlich, Andreas and Dyakonov,
Vladimir and et al.}, year={2022}, pages={2718–2724} }'
chicago: 'Murzakhanov, Fadis F., Georgy Vladimirovich Mamin, Sergei Borisovich Orlinskii,
Uwe Gerstmann, Wolf Gero Schmidt, Timur Biktagirov, Igor Aharonovich, et al. “Electron–Nuclear
Coherent Coupling and Nuclear Spin Readout through Optically Polarized VB–
Spin States in HBN.” Nano Letters 22, no. 7 (2022): 2718–24. https://doi.org/10.1021/acs.nanolett.1c04610.'
ieee: 'F. F. Murzakhanov et al., “Electron–Nuclear Coherent Coupling and
Nuclear Spin Readout through Optically Polarized VB– Spin
States in hBN,” Nano Letters, vol. 22, no. 7, pp. 2718–2724, 2022, doi:
10.1021/acs.nanolett.1c04610.'
mla: Murzakhanov, Fadis F., et al. “Electron–Nuclear Coherent Coupling and Nuclear
Spin Readout through Optically Polarized VB– Spin States
in HBN.” Nano Letters, vol. 22, no. 7, American Chemical Society (ACS),
2022, pp. 2718–24, doi:10.1021/acs.nanolett.1c04610.
short: F.F. Murzakhanov, G.V. Mamin, S.B. Orlinskii, U. Gerstmann, W.G. Schmidt,
T. Biktagirov, I. Aharonovich, A. Gottscholl, A. Sperlich, V. Dyakonov, V.A. Soltamov,
Nano Letters 22 (2022) 2718–2724.
date_created: 2023-01-20T11:21:22Z
date_updated: 2025-12-05T13:57:24Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '790'
doi: 10.1021/acs.nanolett.1c04610
intvolume: ' 22'
issue: '7'
keyword:
- Mechanical Engineering
- Condensed Matter Physics
- General Materials Science
- General Chemistry
- Bioengineering
language:
- iso: eng
page: 2718-2724
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '166'
name: 'TRR 142 - A11: TRR 142 - Subproject A11'
- _id: '168'
name: 'TRR 142 - B07: TRR 142 - Subproject B07'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: Nano Letters
publication_identifier:
issn:
- 1530-6984
- 1530-6992
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Electron–Nuclear Coherent Coupling and Nuclear Spin Readout through Optically
Polarized VB– Spin States in hBN
type: journal_article
user_id: '16199'
volume: 22
year: '2022'
...
---
_id: '33080'
article_number: '2203588'
author:
- first_name: Teng
full_name: Long, Teng
last_name: Long
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Jiahuan
full_name: Ren, Jiahuan
last_name: Ren
- first_name: Feng
full_name: Li, Feng
last_name: Li
- first_name: Qing
full_name: Liao, Qing
last_name: Liao
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Guillaume
full_name: Malpuech, Guillaume
last_name: Malpuech
- first_name: Dmitry
full_name: Solnyshkov, Dmitry
last_name: Solnyshkov
- first_name: Hongbing
full_name: Fu, Hongbing
last_name: Fu
citation:
ama: Long T, Ma X, Ren J, et al. Helical Polariton Lasing from Topological Valleys
in an Organic Crystalline Microcavity. Advanced Science. 2022;9(29). doi:10.1002/advs.202203588
apa: Long, T., Ma, X., Ren, J., Li, F., Liao, Q., Schumacher, S., Malpuech, G.,
Solnyshkov, D., & Fu, H. (2022). Helical Polariton Lasing from Topological
Valleys in an Organic Crystalline Microcavity. Advanced Science, 9(29),
Article 2203588. https://doi.org/10.1002/advs.202203588
bibtex: '@article{Long_Ma_Ren_Li_Liao_Schumacher_Malpuech_Solnyshkov_Fu_2022, title={Helical
Polariton Lasing from Topological Valleys in an Organic Crystalline Microcavity},
volume={9}, DOI={10.1002/advs.202203588},
number={292203588}, journal={Advanced Science}, publisher={Wiley}, author={Long,
Teng and Ma, Xuekai and Ren, Jiahuan and Li, Feng and Liao, Qing and Schumacher,
Stefan and Malpuech, Guillaume and Solnyshkov, Dmitry and Fu, Hongbing}, year={2022}
}'
chicago: Long, Teng, Xuekai Ma, Jiahuan Ren, Feng Li, Qing Liao, Stefan Schumacher,
Guillaume Malpuech, Dmitry Solnyshkov, and Hongbing Fu. “Helical Polariton Lasing
from Topological Valleys in an Organic Crystalline Microcavity.” Advanced Science
9, no. 29 (2022). https://doi.org/10.1002/advs.202203588.
ieee: 'T. Long et al., “Helical Polariton Lasing from Topological Valleys
in an Organic Crystalline Microcavity,” Advanced Science, vol. 9, no. 29,
Art. no. 2203588, 2022, doi: 10.1002/advs.202203588.'
mla: Long, Teng, et al. “Helical Polariton Lasing from Topological Valleys in an
Organic Crystalline Microcavity.” Advanced Science, vol. 9, no. 29, 2203588,
Wiley, 2022, doi:10.1002/advs.202203588.
short: T. Long, X. Ma, J. Ren, F. Li, Q. Liao, S. Schumacher, G. Malpuech, D. Solnyshkov,
H. Fu, Advanced Science 9 (2022).
date_created: 2022-08-22T19:05:04Z
date_updated: 2025-12-05T13:56:26Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1002/advs.202203588
intvolume: ' 9'
issue: '29'
keyword:
- General Physics and Astronomy
- General Engineering
- Biochemistry
- Genetics and Molecular Biology (miscellaneous)
- General Materials Science
- General Chemical Engineering
- Medicine (miscellaneous)
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
name: 'TRR 142 - A4: TRR 142 - Subproject A4'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: Advanced Science
publication_identifier:
issn:
- 2198-3844
- 2198-3844
publication_status: published
publisher: Wiley
status: public
title: Helical Polariton Lasing from Topological Valleys in an Organic Crystalline
Microcavity
type: journal_article
user_id: '16199'
volume: 9
year: '2022'
...
---
_id: '32310'
article_number: '3785'
author:
- first_name: Yao
full_name: Li, Yao
last_name: Li
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Xiaokun
full_name: Zhai, Xiaokun
last_name: Zhai
- first_name: Meini
full_name: Gao, Meini
last_name: Gao
- first_name: Haitao
full_name: Dai, Haitao
last_name: Dai
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Tingge
full_name: Gao, Tingge
last_name: Gao
citation:
ama: Li Y, Ma X, Zhai X, et al. Manipulating polariton condensates by Rashba-Dresselhaus
coupling at room temperature. Nature Communications. 2022;13(1). doi:10.1038/s41467-022-31529-4
apa: Li, Y., Ma, X., Zhai, X., Gao, M., Dai, H., Schumacher, S., & Gao, T. (2022).
Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature.
Nature Communications, 13(1), Article 3785. https://doi.org/10.1038/s41467-022-31529-4
bibtex: '@article{Li_Ma_Zhai_Gao_Dai_Schumacher_Gao_2022, title={Manipulating polariton
condensates by Rashba-Dresselhaus coupling at room temperature}, volume={13},
DOI={10.1038/s41467-022-31529-4},
number={13785}, journal={Nature Communications}, publisher={Springer Science and
Business Media LLC}, author={Li, Yao and Ma, Xuekai and Zhai, Xiaokun and Gao,
Meini and Dai, Haitao and Schumacher, Stefan and Gao, Tingge}, year={2022} }'
chicago: Li, Yao, Xuekai Ma, Xiaokun Zhai, Meini Gao, Haitao Dai, Stefan Schumacher,
and Tingge Gao. “Manipulating Polariton Condensates by Rashba-Dresselhaus Coupling
at Room Temperature.” Nature Communications 13, no. 1 (2022). https://doi.org/10.1038/s41467-022-31529-4.
ieee: 'Y. Li et al., “Manipulating polariton condensates by Rashba-Dresselhaus
coupling at room temperature,” Nature Communications, vol. 13, no. 1, Art.
no. 3785, 2022, doi: 10.1038/s41467-022-31529-4.'
mla: Li, Yao, et al. “Manipulating Polariton Condensates by Rashba-Dresselhaus Coupling
at Room Temperature.” Nature Communications, vol. 13, no. 1, 3785, Springer
Science and Business Media LLC, 2022, doi:10.1038/s41467-022-31529-4.
short: Y. Li, X. Ma, X. Zhai, M. Gao, H. Dai, S. Schumacher, T. Gao, Nature Communications
13 (2022).
date_created: 2022-07-01T09:12:53Z
date_updated: 2025-12-05T13:54:19Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1038/s41467-022-31529-4
intvolume: ' 13'
issue: '1'
keyword:
- General Physics and Astronomy
- General Biochemistry
- Genetics and Molecular Biology
- General Chemistry
- Multidisciplinary
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
name: 'TRR 142 - A4: TRR 142 - Subproject A4'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature
type: journal_article
user_id: '16199'
volume: 13
year: '2022'
...
---
_id: '32148'
author:
- first_name: Xinghui
full_name: Gao, Xinghui
last_name: Gao
- first_name: Wei
full_name: Hu, Wei
last_name: Hu
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
citation:
ama: Gao X, Hu W, Schumacher S, Ma X. Unidirectional vortex waveguides and multistable
vortex pairs in polariton condensates. Optics Letters. 2022;47(13):3235-3238.
doi:10.1364/ol.457724
apa: Gao, X., Hu, W., Schumacher, S., & Ma, X. (2022). Unidirectional vortex
waveguides and multistable vortex pairs in polariton condensates. Optics Letters,
47(13), 3235–3238. https://doi.org/10.1364/ol.457724
bibtex: '@article{Gao_Hu_Schumacher_Ma_2022, title={Unidirectional vortex waveguides
and multistable vortex pairs in polariton condensates}, volume={47}, DOI={10.1364/ol.457724},
number={13}, journal={Optics Letters}, publisher={Optica Publishing Group}, author={Gao,
Xinghui and Hu, Wei and Schumacher, Stefan and Ma, Xuekai}, year={2022}, pages={3235–3238}
}'
chicago: 'Gao, Xinghui, Wei Hu, Stefan Schumacher, and Xuekai Ma. “Unidirectional
Vortex Waveguides and Multistable Vortex Pairs in Polariton Condensates.” Optics
Letters 47, no. 13 (2022): 3235–38. https://doi.org/10.1364/ol.457724.'
ieee: 'X. Gao, W. Hu, S. Schumacher, and X. Ma, “Unidirectional vortex waveguides
and multistable vortex pairs in polariton condensates,” Optics Letters,
vol. 47, no. 13, pp. 3235–3238, 2022, doi: 10.1364/ol.457724.'
mla: Gao, Xinghui, et al. “Unidirectional Vortex Waveguides and Multistable Vortex
Pairs in Polariton Condensates.” Optics Letters, vol. 47, no. 13, Optica
Publishing Group, 2022, pp. 3235–38, doi:10.1364/ol.457724.
short: X. Gao, W. Hu, S. Schumacher, X. Ma, Optics Letters 47 (2022) 3235–3238.
date_created: 2022-06-24T07:38:11Z
date_updated: 2025-12-05T13:55:22Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1364/ol.457724
intvolume: ' 47'
issue: '13'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
page: 3235-3238
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '61'
name: 'TRR 142 - A4: TRR 142 - Subproject A4'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: Optica Publishing Group
status: public
title: Unidirectional vortex waveguides and multistable vortex pairs in polariton
condensates
type: journal_article
user_id: '16199'
volume: 47
year: '2022'
...
---
_id: '30288'
abstract:
- lang: eng
text: Lithium niobate (LiNbO3), a material frequently used in optical applications,
hosts different kinds of polarons that significantly affect many of its physical
properties. In this study, a variety of electron polarons, namely free, bound,
and bipolarons, are analyzed using first-principles calculations. We perform a
full structural optimization based on density-functional theory for selected intrinsic
defects with special attention to the role of symmetry-breaking distortions that
lower the total energy. The cations hosting the various polarons relax to a different
degree, with a larger relaxation corresponding to a larger gap between the defect
level and the conduction-band edge. The projected density of states reveals that
the polaron states are formerly empty Nb 4d states lowered into the band gap.
Optical absorption spectra are derived within the independent-particle approximation,
corrected by the GW approximation that yields a wider band gap and by including
excitonic effects within the Bethe-Salpeter equation. Comparing the calculated
spectra with the density of states, we find that the defect peak observed in the
optical absorption stems from transitions between the defect level and a continuum
of empty Nb 4d states. Signatures of polarons are further analyzed in the reflectivity
and other experimentally measurable optical coefficients.
author:
- first_name: Falko
full_name: Schmidt, Falko
id: '35251'
last_name: Schmidt
orcid: 0000-0002-5071-5528
- first_name: Agnieszka L.
full_name: Kozub, Agnieszka L.
id: '77566'
last_name: Kozub
orcid: https://orcid.org/0000-0001-6584-0201
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
citation:
ama: 'Schmidt F, Kozub AL, Gerstmann U, Schmidt WG, Schindlmayr A. Electron polarons
in lithium niobate: Charge localization, lattice deformation, and optical response.
In: Corradi G, Kovács L, eds. New Trends in Lithium Niobate: From Bulk to Nanocrystals.
MDPI; 2022:231-248. doi:10.3390/books978-3-0365-3339-1'
apa: 'Schmidt, F., Kozub, A. L., Gerstmann, U., Schmidt, W. G., & Schindlmayr,
A. (2022). Electron polarons in lithium niobate: Charge localization, lattice
deformation, and optical response. In G. Corradi & L. Kovács (Eds.), New
Trends in Lithium Niobate: From Bulk to Nanocrystals (pp. 231–248). MDPI.
https://doi.org/10.3390/books978-3-0365-3339-1'
bibtex: '@inbook{Schmidt_Kozub_Gerstmann_Schmidt_Schindlmayr_2022, place={Basel},
title={Electron polarons in lithium niobate: Charge localization, lattice deformation,
and optical response}, DOI={10.3390/books978-3-0365-3339-1},
booktitle={New Trends in Lithium Niobate: From Bulk to Nanocrystals}, publisher={MDPI},
author={Schmidt, Falko and Kozub, Agnieszka L. and Gerstmann, Uwe and Schmidt,
Wolf Gero and Schindlmayr, Arno}, editor={Corradi, Gábor and Kovács, László},
year={2022}, pages={231–248} }'
chicago: 'Schmidt, Falko, Agnieszka L. Kozub, Uwe Gerstmann, Wolf Gero Schmidt,
and Arno Schindlmayr. “Electron Polarons in Lithium Niobate: Charge Localization,
Lattice Deformation, and Optical Response.” In New Trends in Lithium Niobate:
From Bulk to Nanocrystals, edited by Gábor Corradi and László Kovács, 231–48.
Basel: MDPI, 2022. https://doi.org/10.3390/books978-3-0365-3339-1.'
ieee: 'F. Schmidt, A. L. Kozub, U. Gerstmann, W. G. Schmidt, and A. Schindlmayr,
“Electron polarons in lithium niobate: Charge localization, lattice deformation,
and optical response,” in New Trends in Lithium Niobate: From Bulk to Nanocrystals,
G. Corradi and L. Kovács, Eds. Basel: MDPI, 2022, pp. 231–248.'
mla: 'Schmidt, Falko, et al. “Electron Polarons in Lithium Niobate: Charge Localization,
Lattice Deformation, and Optical Response.” New Trends in Lithium Niobate:
From Bulk to Nanocrystals, edited by Gábor Corradi and László Kovács, MDPI,
2022, pp. 231–48, doi:10.3390/books978-3-0365-3339-1.'
short: 'F. Schmidt, A.L. Kozub, U. Gerstmann, W.G. Schmidt, A. Schindlmayr, in:
G. Corradi, L. Kovács (Eds.), New Trends in Lithium Niobate: From Bulk to Nanocrystals,
MDPI, Basel, 2022, pp. 231–248.'
date_created: 2022-03-13T15:28:47Z
date_updated: 2025-12-05T14:00:04Z
ddc:
- '530'
department:
- _id: '296'
- _id: '230'
- _id: '429'
- _id: '295'
- _id: '15'
- _id: '170'
- _id: '35'
- _id: '790'
doi: 10.3390/books978-3-0365-3339-1
editor:
- first_name: Gábor
full_name: Corradi, Gábor
last_name: Corradi
- first_name: László
full_name: Kovács, László
last_name: Kovács
language:
- iso: eng
page: 231-248
place: Basel
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '69'
name: 'TRR 142 - B4: TRR 142 - Subproject B4'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '166'
name: 'TRR 142 - A11: TRR 142 - Subproject A11'
- _id: '168'
name: 'TRR 142 - B07: TRR 142 - Subproject B07'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: 'New Trends in Lithium Niobate: From Bulk to Nanocrystals'
publication_identifier:
eisbn:
- 978-3-0365-3339-1
isbn:
- 978-3-0365-3340-7
publication_status: published
publisher: MDPI
quality_controlled: '1'
status: public
title: 'Electron polarons in lithium niobate: Charge localization, lattice deformation,
and optical response'
type: book_chapter
user_id: '16199'
year: '2022'
...
---
_id: '40371'
abstract:
- lang: eng
text: Multimode integrated interferometers have great potential for both
spectral engineering and metrological applications. However, the material dispersion
of integrated platforms constitutes an obstacle that limits the performance and
precision of such interferometers. At the same time, two-colour nonlinear interferometers
present an important tool for metrological applications, when measurements in
a certain frequency range are difficult. In this manuscript, we theoretically
developed and investigated an integrated multimode two-colour SU(1,1) interferometer
operating in a supersensitive mode. By ensuring the proper design of the integrated
platform, we suppressed the dispersion, thereby significantly increasing the visibility
of the interference pattern. The use of a continuous wave pump laser provided
the symmetry between the spectral shapes of the signal and idler photons concerning
half the pump frequency, despite different photon colours. We demonstrate that
such an interferometer overcomes the classical phase sensitivity limit for wide
parametric gain ranges, when up to 3×104 photons are generated.
article_number: '552'
author:
- first_name: Alessandro
full_name: Ferreri, Alessandro
last_name: Ferreri
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
citation:
ama: Ferreri A, Sharapova PR. Two-Colour Spectrally Multimode Integrated SU(1,1)
Interferometer. Symmetry. 2022;14(3). doi:10.3390/sym14030552
apa: Ferreri, A., & Sharapova, P. R. (2022). Two-Colour Spectrally Multimode
Integrated SU(1,1) Interferometer. Symmetry, 14(3), Article 552.
https://doi.org/10.3390/sym14030552
bibtex: '@article{Ferreri_Sharapova_2022, title={Two-Colour Spectrally Multimode
Integrated SU(1,1) Interferometer}, volume={14}, DOI={10.3390/sym14030552},
number={3552}, journal={Symmetry}, publisher={MDPI AG}, author={Ferreri, Alessandro
and Sharapova, Polina R.}, year={2022} }'
chicago: Ferreri, Alessandro, and Polina R. Sharapova. “Two-Colour Spectrally Multimode
Integrated SU(1,1) Interferometer.” Symmetry 14, no. 3 (2022). https://doi.org/10.3390/sym14030552.
ieee: 'A. Ferreri and P. R. Sharapova, “Two-Colour Spectrally Multimode Integrated
SU(1,1) Interferometer,” Symmetry, vol. 14, no. 3, Art. no. 552, 2022,
doi: 10.3390/sym14030552.'
mla: Ferreri, Alessandro, and Polina R. Sharapova. “Two-Colour Spectrally Multimode
Integrated SU(1,1) Interferometer.” Symmetry, vol. 14, no. 3, 552, MDPI
AG, 2022, doi:10.3390/sym14030552.
short: A. Ferreri, P.R. Sharapova, Symmetry 14 (2022).
date_created: 2023-01-26T13:54:00Z
date_updated: 2025-12-16T11:27:11Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '429'
- _id: '230'
- _id: '9'
- _id: '27'
doi: 10.3390/sym14030552
intvolume: ' 14'
issue: '3'
keyword:
- Physics and Astronomy (miscellaneous)
- General Mathematics
- Chemistry (miscellaneous)
- Computer Science (miscellaneous)
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '72'
name: 'TRR 142 - C2: TRR 142 - Subproject C2'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Symmetry
publication_identifier:
issn:
- 2073-8994
publication_status: published
publisher: MDPI AG
status: public
title: Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer
type: journal_article
user_id: '16199'
volume: 14
year: '2022'
...
---
_id: '30210'
abstract:
- lang: eng
text: Lithium niobate on insulator (LNOI) has a great potential for photonic integrated
circuits, providing substantial versatility in design of various integrated components.
To properly use these components in the implementation of different quantum protocols,
photons with different properties are required. In this paper, we theoretically
demonstrate a flexible source of correlated photons built on the LNOI waveguide
of a special geometry. This source is based on the parametric down-conversion
(PDC) process, in which the signal and idler photons are generated at the telecom
wavelength and have different spatial profiles and polarizations, but the same
group velocities. Distinguishability in polarizations and spatial profiles facilitates
the routing and manipulating individual photons, while the equality of their group
velocities leads to the absence of temporal walk-off between photons. We show
how the spectral properties of the generated photons and the number of their frequency
modes can be controlled depending on the pump characteristics and the waveguide
length. Finally, we discuss special regimes, in which narrowband light with strong
frequency correlations and polarization-entangled Bell states are generated at
the telecom wavelength.
author:
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Alessandro
full_name: Ferreri, Alessandro
id: '65609'
last_name: Ferreri
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Maximilian
full_name: Albert, Maximilian
last_name: Albert
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- 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: 'Ebers L, Ferreri A, Hammer M, et al. Flexible source of correlated photons
based on LNOI rib waveguides. Journal of Physics: Photonics. 2022;4:025001.
doi:10.1088/2515-7647/ac5a5b'
apa: 'Ebers, L., Ferreri, A., Hammer, M., Albert, M., Meier, C., Förstner, J., &
Sharapova, P. R. (2022). Flexible source of correlated photons based on LNOI rib
waveguides. Journal of Physics: Photonics, 4, 025001. https://doi.org/10.1088/2515-7647/ac5a5b'
bibtex: '@article{Ebers_Ferreri_Hammer_Albert_Meier_Förstner_Sharapova_2022, title={Flexible
source of correlated photons based on LNOI rib waveguides}, volume={4}, DOI={10.1088/2515-7647/ac5a5b},
journal={Journal of Physics: Photonics}, publisher={IOP Publishing}, author={Ebers,
Lena and Ferreri, Alessandro and Hammer, Manfred and Albert, Maximilian and Meier,
Cedrik and Förstner, Jens and Sharapova, Polina R.}, year={2022}, pages={025001}
}'
chicago: 'Ebers, Lena, Alessandro Ferreri, Manfred Hammer, Maximilian Albert, Cedrik
Meier, Jens Förstner, and Polina R. Sharapova. “Flexible Source of Correlated
Photons Based on LNOI Rib Waveguides.” Journal of Physics: Photonics 4
(2022): 025001. https://doi.org/10.1088/2515-7647/ac5a5b.'
ieee: 'L. Ebers et al., “Flexible source of correlated photons based on LNOI
rib waveguides,” Journal of Physics: Photonics, vol. 4, p. 025001, 2022,
doi: 10.1088/2515-7647/ac5a5b.'
mla: 'Ebers, Lena, et al. “Flexible Source of Correlated Photons Based on LNOI Rib
Waveguides.” Journal of Physics: Photonics, vol. 4, IOP Publishing, 2022,
p. 025001, doi:10.1088/2515-7647/ac5a5b.'
short: 'L. Ebers, A. Ferreri, M. Hammer, M. Albert, C. Meier, J. Förstner, P.R.
Sharapova, Journal of Physics: Photonics 4 (2022) 025001.'
date_created: 2022-03-07T09:51:50Z
date_updated: 2025-12-16T11:31:04Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '287'
- _id: '35'
- _id: '34'
doi: 10.1088/2515-7647/ac5a5b
intvolume: ' 4'
keyword:
- tet_topic_waveguide
language:
- iso: eng
page: '025001'
project:
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '75'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
- _id: '72'
name: 'TRR 142 - C2: TRR 142 - Subproject C2'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
publication: 'Journal of Physics: Photonics'
publication_identifier:
issn:
- 2515-7647
publication_status: published
publisher: IOP Publishing
related_material:
link:
- description: Corrigendum for table C1
relation: erratum
url: https://doi.org/10.1088/2515-7647/acc70c
status: public
title: Flexible source of correlated photons based on LNOI rib waveguides
type: journal_article
user_id: '16199'
volume: 4
year: '2022'
...
---
_id: '33670'
article_number: '013701'
author:
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Schapeler T, Bartley T. Information extraction in photon-counting experiments.
Physical Review A. 2022;106(1). doi:10.1103/physreva.106.013701
apa: Schapeler, T., & Bartley, T. (2022). Information extraction in photon-counting
experiments. Physical Review A, 106(1), Article 013701. https://doi.org/10.1103/physreva.106.013701
bibtex: '@article{Schapeler_Bartley_2022, title={Information extraction in photon-counting
experiments}, volume={106}, DOI={10.1103/physreva.106.013701},
number={1013701}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Schapeler, Timon and Bartley, Tim}, year={2022} }'
chicago: Schapeler, Timon, and Tim Bartley. “Information Extraction in Photon-Counting
Experiments.” Physical Review A 106, no. 1 (2022). https://doi.org/10.1103/physreva.106.013701.
ieee: 'T. Schapeler and T. Bartley, “Information extraction in photon-counting experiments,”
Physical Review A, vol. 106, no. 1, Art. no. 013701, 2022, doi: 10.1103/physreva.106.013701.'
mla: Schapeler, Timon, and Tim Bartley. “Information Extraction in Photon-Counting
Experiments.” Physical Review A, vol. 106, no. 1, 013701, American Physical
Society (APS), 2022, doi:10.1103/physreva.106.013701.
short: T. Schapeler, T. Bartley, Physical Review A 106 (2022).
date_created: 2022-10-11T07:13:12Z
date_updated: 2025-12-18T17:07:12Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1103/physreva.106.013701
intvolume: ' 106'
issue: '1'
language:
- iso: eng
project:
- _id: '209'
name: 'ISOQC: Quantenkommunikation mit integrierter Optik im Zusammenhang mit supraleitender
Elektronik'
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Information extraction in photon-counting experiments
type: journal_article
user_id: '55629'
volume: 106
year: '2022'
...
---
_id: '63039'
abstract:
- lang: eng
text: We report on coherent transmission of beyond 100 GBd signaling based
on plasmonic technology. Using dual-drive plasmonic-organic-hybrid I/Q modulator
on silicon photonics platform, we demonstrate the successful transmission of 160-GBaud
QPSK and 140-GBaud 16QAM modulations.
author:
- first_name: Haïk
full_name: Mardoyan, Haïk
last_name: Mardoyan
- first_name: Filipe
full_name: Jorge, Filipe
last_name: Jorge
- first_name: Marcel
full_name: Destraz, Marcel
last_name: Destraz
- first_name: Bernadette
full_name: Duval, Bernadette
last_name: Duval
- first_name: Bertold
full_name: Bitachon, Bertold
last_name: Bitachon
- first_name: Yannik
full_name: Horst, Yannik
last_name: Horst
- first_name: Kaoutar
full_name: Benyahya, Kaoutar
last_name: Benyahya
- first_name: Fabrice
full_name: Blache, Fabrice
last_name: Blache
- first_name: Michel
full_name: Goix, Michel
last_name: Goix
- first_name: Eva
full_name: De Leo, Eva
last_name: De Leo
- first_name: Patrick
full_name: Habegger, Patrick
last_name: Habegger
- first_name: Norbert
full_name: Meier, Norbert
last_name: Meier
- first_name: Nino
full_name: Del Medico, Nino
last_name: Del Medico
- first_name: Valentino
full_name: Tedaldi, Valentino
last_name: Tedaldi
- first_name: Christian
full_name: Funck, Christian
last_name: Funck
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
- first_name: Juerg
full_name: Leuthold, Juerg
last_name: Leuthold
- first_name: Jéremie
full_name: Renaudier, Jéremie
last_name: Renaudier
- first_name: Claudia
full_name: Hoessbacher, Claudia
last_name: Hoessbacher
- first_name: Wolfgang
full_name: Heni, Wolfgang
last_name: Heni
- first_name: Benedikt
full_name: Baeuerle, Benedikt
last_name: Baeuerle
citation:
ama: 'Mardoyan H, Jorge F, Destraz M, et al. Generation and transmission of 160-Gbaud
QPSK Coherent Signals using a Dual-Drive Plasmonic-Organic Hybrid I/Q modulator
on Silicon Photonics. In: Optical Fiber Communication Conference (OFC) 2022.
Optica Publishing Group; 2022. doi:10.1364/ofc.2022.th1j.5'
apa: Mardoyan, H., Jorge, F., Destraz, M., Duval, B., Bitachon, B., Horst, Y., Benyahya,
K., Blache, F., Goix, M., De Leo, E., Habegger, P., Meier, N., Del Medico, N.,
Tedaldi, V., Funck, C., Güsken, N. A., Leuthold, J., Renaudier, J., Hoessbacher,
C., … Baeuerle, B. (2022). Generation and transmission of 160-Gbaud QPSK Coherent
Signals using a Dual-Drive Plasmonic-Organic Hybrid I/Q modulator on Silicon Photonics.
Optical Fiber Communication Conference (OFC) 2022. https://doi.org/10.1364/ofc.2022.th1j.5
bibtex: '@inproceedings{Mardoyan_Jorge_Destraz_Duval_Bitachon_Horst_Benyahya_Blache_Goix_De
Leo_et al._2022, title={Generation and transmission of 160-Gbaud QPSK Coherent
Signals using a Dual-Drive Plasmonic-Organic Hybrid I/Q modulator on Silicon Photonics},
DOI={10.1364/ofc.2022.th1j.5},
booktitle={Optical Fiber Communication Conference (OFC) 2022}, publisher={Optica
Publishing Group}, author={Mardoyan, Haïk and Jorge, Filipe and Destraz, Marcel
and Duval, Bernadette and Bitachon, Bertold and Horst, Yannik and Benyahya, Kaoutar
and Blache, Fabrice and Goix, Michel and De Leo, Eva and et al.}, year={2022}
}'
chicago: Mardoyan, Haïk, Filipe Jorge, Marcel Destraz, Bernadette Duval, Bertold
Bitachon, Yannik Horst, Kaoutar Benyahya, et al. “Generation and Transmission
of 160-Gbaud QPSK Coherent Signals Using a Dual-Drive Plasmonic-Organic Hybrid
I/Q Modulator on Silicon Photonics.” In Optical Fiber Communication Conference
(OFC) 2022. Optica Publishing Group, 2022. https://doi.org/10.1364/ofc.2022.th1j.5.
ieee: 'H. Mardoyan et al., “Generation and transmission of 160-Gbaud QPSK
Coherent Signals using a Dual-Drive Plasmonic-Organic Hybrid I/Q modulator on
Silicon Photonics,” 2022, doi: 10.1364/ofc.2022.th1j.5.'
mla: Mardoyan, Haïk, et al. “Generation and Transmission of 160-Gbaud QPSK Coherent
Signals Using a Dual-Drive Plasmonic-Organic Hybrid I/Q Modulator on Silicon Photonics.”
Optical Fiber Communication Conference (OFC) 2022, Optica Publishing Group,
2022, doi:10.1364/ofc.2022.th1j.5.
short: 'H. Mardoyan, F. Jorge, M. Destraz, B. Duval, B. Bitachon, Y. Horst, K. Benyahya,
F. Blache, M. Goix, E. De Leo, P. Habegger, N. Meier, N. Del Medico, V. Tedaldi,
C. Funck, N.A. Güsken, J. Leuthold, J. Renaudier, C. Hoessbacher, W. Heni, B.
Baeuerle, in: Optical Fiber Communication Conference (OFC) 2022, Optica Publishing
Group, 2022.'
date_created: 2025-12-11T20:32:06Z
date_updated: 2026-01-08T13:22:48Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: 10.1364/ofc.2022.th1j.5
language:
- iso: eng
publication: Optical Fiber Communication Conference (OFC) 2022
publication_status: published
publisher: Optica Publishing Group
status: public
title: Generation and transmission of 160-Gbaud QPSK Coherent Signals using a Dual-Drive
Plasmonic-Organic Hybrid I/Q modulator on Silicon Photonics
type: conference
user_id: '112030'
year: '2022'
...
---
_id: '63041'
author:
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
citation:
ama: 'Güsken NA. Plasmonic PICs—Terabit Modulation on the Micrometer Scale. In:
Optica Publishing Group; 2022. doi:https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3'
apa: Güsken, N. A. (2022). Plasmonic PICs—Terabit Modulation on the Micrometer
Scale. European Conference and Exhibition on Optical Communication. https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3
bibtex: '@inproceedings{Güsken_2022, title={Plasmonic PICs—Terabit Modulation on
the Micrometer Scale}, DOI={https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3},
publisher={Optica Publishing Group}, author={Güsken, Nicholas Alexander}, year={2022}
}'
chicago: Güsken, Nicholas Alexander. “Plasmonic PICs—Terabit Modulation on the Micrometer
Scale.” Optica Publishing Group, 2022. https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3.
ieee: 'N. A. Güsken, “Plasmonic PICs—Terabit Modulation on the Micrometer Scale,”
presented at the European Conference and Exhibition on Optical Communication,
2022, doi: https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3.'
mla: Güsken, Nicholas Alexander. Plasmonic PICs—Terabit Modulation on the Micrometer
Scale. Optica Publishing Group, 2022, doi:https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3.
short: 'N.A. Güsken, in: Optica Publishing Group, 2022.'
conference:
name: European Conference and Exhibition on Optical Communication
date_created: 2025-12-11T20:35:30Z
date_updated: 2026-01-08T16:08:47Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: https://opg.optica.org/abstract.cfm?URI=ECEOC-2022-Tu4E.3
language:
- iso: eng
publisher: Optica Publishing Group
status: public
title: Plasmonic PICs—Terabit Modulation on the Micrometer Scale
type: conference
user_id: '112030'
year: '2022'
...
---
_id: '30921'
abstract:
- lang: eng
text: Quantum walks function as essential means to implement quantum simulators,
allowing one to study complex and often directly inaccessible quantum processes
in controllable systems. In this contribution, the notion of a driven Gaussian
quantum walk is introduced. In contrast to typically considered quantum walks
in optical settings, we describe the operation of the walk in terms of a nonlinear
map rather than a unitary operation, e.g., by replacing a beam-splitter-type coin
with a two-mode squeezer, being a process that is controlled and driven by a pump
field. This opens previously unattainable possibilities for quantum walks that
include nonlinear elements as core components of their operation, vastly extending
their range of applications. A full framework for driven Gaussian quantum walks
is developed, including methods to dynamically characterize nonlinear, quantum,
and quantum-nonlinear effects. Moreover, driven Gaussian quantum walks are compared
with their classically interfering and linear counterparts, which are based on
classical coherence of light rather than quantum superpositions. In particular,
the generation and boost of highly multimode entanglement, squeezing, and other
quantum effects are studied over the duration of the nonlinear walk. Importantly,
we prove the quantumness of the evolution itself, regardless of the input state.
A scheme for an experimental realization is proposed. Furthermore, nonlinear properties
of driven Gaussian quantum walks are explored, such as amplification that leads
to an ever increasing number of correlated quantum particles, constituting a source
of new walkers during the walk. Therefore, a concept for quantum walks is proposed
that leads to—and even produces—directly accessible quantum phenomena, and that
renders the quantum simulation of nonlinear processes possible.
article_number: '042210'
article_type: original
author:
- first_name: Philip
full_name: Held, Philip
id: '68236'
last_name: Held
- first_name: Melanie
full_name: Engelkemeier, Melanie
last_name: Engelkemeier
- first_name: Syamsundar
full_name: De, Syamsundar
last_name: De
- first_name: Sonja
full_name: Barkhofen, Sonja
id: '48188'
last_name: Barkhofen
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Held P, Engelkemeier M, De S, Barkhofen S, Sperling J, Silberhorn C. Driven
Gaussian quantum walks. Physical Review A. 2022;105(4). doi:10.1103/physreva.105.042210
apa: Held, P., Engelkemeier, M., De, S., Barkhofen, S., Sperling, J., & Silberhorn,
C. (2022). Driven Gaussian quantum walks. Physical Review A, 105(4),
Article 042210. https://doi.org/10.1103/physreva.105.042210
bibtex: '@article{Held_Engelkemeier_De_Barkhofen_Sperling_Silberhorn_2022, title={Driven
Gaussian quantum walks}, volume={105}, DOI={10.1103/physreva.105.042210},
number={4042210}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Held, Philip and Engelkemeier, Melanie and De, Syamsundar and
Barkhofen, Sonja and Sperling, Jan and Silberhorn, Christine}, year={2022} }'
chicago: Held, Philip, Melanie Engelkemeier, Syamsundar De, Sonja Barkhofen, Jan
Sperling, and Christine Silberhorn. “Driven Gaussian Quantum Walks.” Physical
Review A 105, no. 4 (2022). https://doi.org/10.1103/physreva.105.042210.
ieee: 'P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, and C. Silberhorn,
“Driven Gaussian quantum walks,” Physical Review A, vol. 105, no. 4, Art.
no. 042210, 2022, doi: 10.1103/physreva.105.042210.'
mla: Held, Philip, et al. “Driven Gaussian Quantum Walks.” Physical Review A,
vol. 105, no. 4, 042210, American Physical Society (APS), 2022, doi:10.1103/physreva.105.042210.
short: P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, C. Silberhorn,
Physical Review A 105 (2022).
date_created: 2022-04-20T06:38:07Z
date_updated: 2026-01-09T09:50:22Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '288'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1103/physreva.105.042210
intvolume: ' 105'
issue: '4'
language:
- iso: eng
main_file_link:
- url: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.105.042210
project:
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '53'
name: 'TRR 142: TRR 142'
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Driven Gaussian quantum walks
type: journal_article
user_id: '68236'
volume: 105
year: '2022'
...
---
_id: '25605'
abstract:
- lang: eng
text: The nonlinear process of second harmonic generation (SHG) in monolayer (1L)
transition metal dichalcogenides (TMD), like WS2, strongly depends on the polarization
state of the excitation light. By combination of plasmonic nanostructures with
1L-WS2 by transferring it onto a plasmonic nanoantenna array, a hybrid metasurface
is realized impacting the polarization dependency of its SHG. Here, we investigate
how plasmonic dipole resonances affect the process of SHG in plasmonic–TMD hybrid
metasurfaces by nonlinear spectroscopy. We show that the polarization dependency
is affected by the lattice structure of plasmonic nanoantenna arrays as well as
by the relative orientation between the 1L-WS2 and the individual plasmonic nanoantennas.
In addition, such hybrid metasurfaces show SHG in polarization states, where SHG
is usually forbidden for either 1L-WS2 or plasmonic nanoantennas. By comparing
the SHG in these channels with the SHG generated by the hybrid metasurface components,
we detect an enhancement of the SHG signal by a factor of more than 40. Meanwhile,
an attenuation of the SHG signal in usually allowed polarization states is observed.
Our study provides valuable insight into hybrid systems where symmetries strongly
affect the SHG and enable tailored SHG in 1L-WS2 for future applications.
article_type: original
author:
- first_name: Florian
full_name: Spreyer, Florian
last_name: Spreyer
- first_name: Claudia
full_name: Ruppert, Claudia
last_name: Ruppert
- first_name: Philip
full_name: Georgi, Philip
last_name: Georgi
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: Spreyer F, Ruppert C, Georgi P, Zentgraf T. Influence of Plasmon Resonances
and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces.
ACS Nano. 2021;15(10):16719-16728. doi:10.1021/acsnano.1c06693
apa: Spreyer, F., Ruppert, C., Georgi, P., & Zentgraf, T. (2021). Influence
of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic
Hybrid Metasurfaces. ACS Nano, 15(10), 16719–16728. https://doi.org/10.1021/acsnano.1c06693
bibtex: '@article{Spreyer_Ruppert_Georgi_Zentgraf_2021, title={Influence of Plasmon
Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic
Hybrid Metasurfaces}, volume={15}, DOI={10.1021/acsnano.1c06693},
number={10}, journal={ACS Nano}, author={Spreyer, Florian and Ruppert, Claudia
and Georgi, Philip and Zentgraf, Thomas}, year={2021}, pages={16719–16728} }'
chicago: 'Spreyer, Florian, Claudia Ruppert, Philip Georgi, and Thomas Zentgraf.
“Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation
in WS2–Plasmonic Hybrid Metasurfaces.” ACS Nano 15, no. 10 (2021): 16719–28.
https://doi.org/10.1021/acsnano.1c06693.'
ieee: 'F. Spreyer, C. Ruppert, P. Georgi, and T. Zentgraf, “Influence of Plasmon
Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic
Hybrid Metasurfaces,” ACS Nano, vol. 15, no. 10, pp. 16719–16728, 2021,
doi: 10.1021/acsnano.1c06693.'
mla: Spreyer, Florian, et al. “Influence of Plasmon Resonances and Symmetry Effects
on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces.” ACS Nano,
vol. 15, no. 10, 2021, pp. 16719–28, doi:10.1021/acsnano.1c06693.
short: F. Spreyer, C. Ruppert, P. Georgi, T. Zentgraf, ACS Nano 15 (2021) 16719–16728.
date_created: 2021-10-07T07:39:27Z
date_updated: 2022-01-06T06:57:07Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1021/acsnano.1c06693
funded_apc: '1'
intvolume: ' 15'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://pubs.acs.org/doi/10.1021/acsnano.1c06693
oa: '1'
page: 16719-16728
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '64'
name: TRR 142 - Subproject A7
- _id: '65'
name: TRR 142 - Subproject A8
publication: ACS Nano
publication_identifier:
issn:
- 1936-0851
- 1936-086X
publication_status: published
quality_controlled: '1'
status: public
title: Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation
in WS2–Plasmonic Hybrid Metasurfaces
type: journal_article
user_id: '30525'
volume: 15
year: '2021'
...
---
_id: '21631'
abstract:
- lang: eng
text: Secret sharing is a well-established cryptographic primitive for storing
highly sensitive information like encryption keys for encoded data. It describes
the problem of splitting a secret into different shares, without revealing any
information to its shareholders. Here, we demonstrate an all-optical solution
for secret sharing based on metasurface holography. In our concept, metasurface
holograms are used as spatially separable shares that carry encrypted messages
in the form of holographic images. Two of these shares can be recombined by bringing
them close together. Light passing through this stack of metasurfaces accumulates
the phase shift of both holograms and optically reconstructs the secret with high
fidelity. In addition, the hologram generated by each single metasurface can uniquely
identify its shareholder. Furthermore, we demonstrate that the inherent translational
alignment sensitivity between two stacked metasurface holograms can be used for
spatial multiplexing, which can be further extended to realize optical rulers.
article_number: eabf9718
article_type: original
author:
- first_name: Philip
full_name: Georgi, Philip
last_name: Georgi
- first_name: Qunshuo
full_name: Wei, Qunshuo
last_name: Wei
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Christian
full_name: Schlickriede, Christian
id: '59792'
last_name: Schlickriede
- first_name: Yongtian
full_name: Wang, Yongtian
last_name: Wang
- 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: Georgi P, Wei Q, Sain B, et al. Optical secret sharing with cascaded metasurface
holography. Science Advances. 2021;7(16). doi:10.1126/sciadv.abf9718
apa: Georgi, P., Wei, Q., Sain, B., Schlickriede, C., Wang, Y., Huang, L., &
Zentgraf, T. (2021). Optical secret sharing with cascaded metasurface holography.
Science Advances, 7(16). https://doi.org/10.1126/sciadv.abf9718
bibtex: '@article{Georgi_Wei_Sain_Schlickriede_Wang_Huang_Zentgraf_2021, title={Optical
secret sharing with cascaded metasurface holography}, volume={7}, DOI={10.1126/sciadv.abf9718},
number={16eabf9718}, journal={Science Advances}, author={Georgi, Philip and Wei,
Qunshuo and Sain, Basudeb and Schlickriede, Christian and Wang, Yongtian and Huang,
Lingling and Zentgraf, Thomas}, year={2021} }'
chicago: Georgi, Philip, Qunshuo Wei, Basudeb Sain, Christian Schlickriede, Yongtian
Wang, Lingling Huang, and Thomas Zentgraf. “Optical Secret Sharing with Cascaded
Metasurface Holography.” Science Advances 7, no. 16 (2021). https://doi.org/10.1126/sciadv.abf9718.
ieee: P. Georgi et al., “Optical secret sharing with cascaded metasurface
holography,” Science Advances, vol. 7, no. 16, 2021.
mla: Georgi, Philip, et al. “Optical Secret Sharing with Cascaded Metasurface Holography.”
Science Advances, vol. 7, no. 16, eabf9718, 2021, doi:10.1126/sciadv.abf9718.
short: P. Georgi, Q. Wei, B. Sain, C. Schlickriede, Y. Wang, L. Huang, T. Zentgraf,
Science Advances 7 (2021).
date_created: 2021-04-16T08:08:49Z
date_updated: 2022-01-06T06:55:08Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1126/sciadv.abf9718
intvolume: ' 7'
issue: '16'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://advances.sciencemag.org/content/7/16/eabf9718
oa: '1'
publication: Science Advances
publication_identifier:
issn:
- 2375-2548
publication_status: published
quality_controlled: '1'
status: public
title: Optical secret sharing with cascaded metasurface holography
type: journal_article
user_id: '30525'
volume: 7
year: '2021'
...
---
_id: '23842'
article_number: '025101'
author:
- first_name: Elias
full_name: Baron, Elias
last_name: Baron
- first_name: Martin
full_name: Feneberg, Martin
last_name: Feneberg
- first_name: Rüdiger
full_name: Goldhahn, Rüdiger
last_name: Goldhahn
- first_name: Michael
full_name: Deppe, Michael
last_name: Deppe
- first_name: Fabian
full_name: Tacken, Fabian
last_name: Tacken
- first_name: Donat Josef
full_name: As, Donat Josef
id: '14'
last_name: As
orcid: 0000-0003-1121-3565
citation:
ama: 'Baron E, Feneberg M, Goldhahn R, Deppe M, Tacken F, As DJ. Optical evidence
of many-body effects in the zincblende Al$_\mathrm{x}$Ga$_\mathrm{1-x}$N alloy
system. Journal of Physics D: Applied Physics. 2021. doi:10.1088/1361-6463/abb97a'
apa: 'Baron, E., Feneberg, M., Goldhahn, R., Deppe, M., Tacken, F., & As, D.
J. (2021). Optical evidence of many-body effects in the zincblende Al$_\mathrm{x}$Ga$_\mathrm{1-x}$N
alloy system. Journal of Physics D: Applied Physics. https://doi.org/10.1088/1361-6463/abb97a'
bibtex: '@article{Baron_Feneberg_Goldhahn_Deppe_Tacken_As_2021, title={Optical evidence
of many-body effects in the zincblende Al$_\mathrm{x}$Ga$_\mathrm{1-x}$N alloy
system}, DOI={10.1088/1361-6463/abb97a},
number={025101}, journal={Journal of Physics D: Applied Physics}, author={Baron,
Elias and Feneberg, Martin and Goldhahn, Rüdiger and Deppe, Michael and Tacken,
Fabian and As, Donat Josef}, year={2021} }'
chicago: 'Baron, Elias, Martin Feneberg, Rüdiger Goldhahn, Michael Deppe, Fabian
Tacken, and Donat Josef As. “Optical Evidence of Many-Body Effects in the Zincblende
Al$_\mathrm{x}$Ga$_\mathrm{1-X}$N Alloy System.” Journal of Physics D: Applied
Physics, 2021. https://doi.org/10.1088/1361-6463/abb97a.'
ieee: 'E. Baron, M. Feneberg, R. Goldhahn, M. Deppe, F. Tacken, and D. J. As, “Optical
evidence of many-body effects in the zincblende Al$_\mathrm{x}$Ga$_\mathrm{1-x}$N
alloy system,” Journal of Physics D: Applied Physics, 2021.'
mla: 'Baron, Elias, et al. “Optical Evidence of Many-Body Effects in the Zincblende
Al$_\mathrm{x}$Ga$_\mathrm{1-X}$N Alloy System.” Journal of Physics D: Applied
Physics, 025101, 2021, doi:10.1088/1361-6463/abb97a.'
short: 'E. Baron, M. Feneberg, R. Goldhahn, M. Deppe, F. Tacken, D.J. As, Journal
of Physics D: Applied Physics (2021).'
date_created: 2021-09-07T09:19:46Z
date_updated: 2022-01-06T06:56:01Z
department:
- _id: '230'
- _id: '429'
doi: 10.1088/1361-6463/abb97a
language:
- iso: eng
publication: 'Journal of Physics D: Applied Physics'
publication_identifier:
issn:
- 0022-3727
- 1361-6463
publication_status: published
status: public
title: Optical evidence of many-body effects in the zincblende Al$_\mathrm{x}$Ga$_\mathrm{1-x}$N
alloy system
type: journal_article
user_id: '14'
year: '2021'
...
---
_id: '20592'
abstract:
- lang: eng
text: GaAs-(111)-nanostructures exhibiting second harmonic generation are new building
blocks in nonlinear optics. Such structures can be fabricated through epitaxial
lift-off using selective etching of Al-containing layers and subsequent transfer
to glass substrates. Herein, the selective etching of (111)B-oriented AlxGa1−xAs
sacrificial layers (10–50 nm thick) with different aluminum concentrations (x
= 0.5–1.0) in 10\% hydrofluoric acid is investigated and compared with standard
(100)-oriented structures. The thinner the sacrificial layer and the lower the
aluminum content, the lower the lateral etch rate. For both orientations, the
lateral etch rates are in the same order of magnitude, but some quantitative differences
exist. Furthermore, the epitaxial lift-off, the transfer, and the nanopatterning
of thin (111)B-oriented GaAs membranes are demonstrated. Atomic force microscopy
and high-resolution X-ray diffraction measurements reveal the high structural
quality of the transferred GaAs-(111) films.
article_type: original
author:
- first_name: Tobias
full_name: Henksmeier, Tobias
last_name: Henksmeier
- first_name: Martin
full_name: Eppinger, Martin
last_name: Eppinger
- first_name: Bernhard
full_name: Reineke, Bernhard
last_name: Reineke
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
citation:
ama: Henksmeier T, Eppinger M, Reineke B, Zentgraf T, Meier C, Reuter D. Selective
Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off. physica
status solidi (a). 2021;218(3):2000408. doi:https://doi.org/10.1002/pssa.202000408
apa: Henksmeier, T., Eppinger, M., Reineke, B., Zentgraf, T., Meier, C., & Reuter,
D. (2021). Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial
Lift-Off. Physica Status Solidi (A), 218(3), 2000408. https://doi.org/10.1002/pssa.202000408
bibtex: '@article{Henksmeier_Eppinger_Reineke_Zentgraf_Meier_Reuter_2021, title={Selective
Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off}, volume={218},
DOI={https://doi.org/10.1002/pssa.202000408},
number={3}, journal={physica status solidi (a)}, author={Henksmeier, Tobias and
Eppinger, Martin and Reineke, Bernhard and Zentgraf, Thomas and Meier, Cedrik
and Reuter, Dirk}, year={2021}, pages={2000408} }'
chicago: 'Henksmeier, Tobias, Martin Eppinger, Bernhard Reineke, Thomas Zentgraf,
Cedrik Meier, and Dirk Reuter. “Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers
for Epitaxial Lift-Off.” Physica Status Solidi (A) 218, no. 3 (2021): 2000408.
https://doi.org/10.1002/pssa.202000408.'
ieee: T. Henksmeier, M. Eppinger, B. Reineke, T. Zentgraf, C. Meier, and D. Reuter,
“Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off,”
physica status solidi (a), vol. 218, no. 3, p. 2000408, 2021.
mla: Henksmeier, Tobias, et al. “Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers
for Epitaxial Lift-Off.” Physica Status Solidi (A), vol. 218, no. 3, 2021,
p. 2000408, doi:https://doi.org/10.1002/pssa.202000408.
short: T. Henksmeier, M. Eppinger, B. Reineke, T. Zentgraf, C. Meier, D. Reuter,
Physica Status Solidi (A) 218 (2021) 2000408.
date_created: 2020-12-02T09:50:10Z
date_updated: 2022-01-06T06:54:30Z
department:
- _id: '230'
- _id: '429'
doi: https://doi.org/10.1002/pssa.202000408
intvolume: ' 218'
issue: '3'
keyword:
- epitaxial lift-off
- GaAs/AlxGa1−xAs heterostructures
- selective etching
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/full/10.1002/pssa.202000408
oa: '1'
page: '2000408'
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '63'
name: TRR 142 - Subproject A6
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
name: TRR 142 - Subproject C5
publication: physica status solidi (a)
publication_status: published
status: public
title: Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off
type: journal_article
user_id: '30525'
volume: 218
year: '2021'
...