---
_id: '31254'
author:
- first_name: Adriana
full_name: Bocchini, Adriana
id: '58349'
last_name: Bocchini
orcid: 0000-0002-2134-3075
- 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
citation:
ama: 'Bocchini A, Gerstmann U, Schmidt WG. Oxygen vacancies in KTiOPO_4: Optical
absorption from hybrid DFT. Phys Rev B. 2022;105:205118. doi:10.1103/PhysRevB.105.205118'
apa: 'Bocchini, A., Gerstmann, U., & Schmidt, W. G. (2022). Oxygen vacancies
in KTiOPO_4: Optical absorption from hybrid DFT. Phys. Rev. B, 105,
205118. https://doi.org/10.1103/PhysRevB.105.205118'
bibtex: '@article{Bocchini_Gerstmann_Schmidt_2022, title={Oxygen vacancies in KTiOPO_4:
Optical absorption from hybrid DFT}, volume={105}, DOI={10.1103/PhysRevB.105.205118},
journal={Phys. Rev. B}, publisher={American Physical Society}, author={Bocchini,
Adriana and Gerstmann, Uwe and Schmidt, Wolf Gero}, year={2022}, pages={205118}
}'
chicago: 'Bocchini, Adriana, Uwe Gerstmann, and Wolf Gero Schmidt. “Oxygen Vacancies
in KTiOPO_4: Optical Absorption from Hybrid DFT.” Phys. Rev. B 105 (2022):
205118. https://doi.org/10.1103/PhysRevB.105.205118.'
ieee: 'A. Bocchini, U. Gerstmann, and W. G. Schmidt, “Oxygen vacancies in KTiOPO_4:
Optical absorption from hybrid DFT,” Phys. Rev. B, vol. 105, p. 205118,
2022, doi: 10.1103/PhysRevB.105.205118.'
mla: 'Bocchini, Adriana, et al. “Oxygen Vacancies in KTiOPO_4: Optical Absorption
from Hybrid DFT.” Phys. Rev. B, vol. 105, American Physical Society, 2022,
p. 205118, doi:10.1103/PhysRevB.105.205118.'
short: A. Bocchini, U. Gerstmann, W.G. Schmidt, Phys. Rev. B 105 (2022) 205118.
date_created: 2022-05-16T14:41:02Z
date_updated: 2023-04-21T11:29:05Z
department:
- _id: '15'
- _id: '295'
- _id: '170'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '790'
doi: 10.1103/PhysRevB.105.205118
intvolume: ' 105'
language:
- iso: eng
page: '205118'
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: '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'
publication: Phys. Rev. B
publisher: American Physical Society
status: public
title: 'Oxygen vacancies in KTiOPO_4: Optical absorption from hybrid DFT'
type: journal_article
user_id: '171'
volume: 105
year: '2022'
...
---
_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
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: '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: '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: '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'
...
---
_id: '22450'
abstract:
- lang: eng
text: We realize and investigate a nonlinear metasurface taking advantage of intersubband
transitions in ultranarrow GaN/AlN multi-quantum well heterostructures. Owing
to huge band offsets, the structures offer resonant transitions in the telecom
window around 1.55 µm. These heterostructures are functionalized with an array
of plasmonic antennas featuring cross-polarized resonances at these near-infrared
wavelengths and their second harmonic. This kind of nonlinear metasurface allows
for substantial second-harmonic generation at normal incidence which is completely
absent for an antenna array without the multi-quantum well structure underneath.
While the second harmonic is originally radiated only into the plane of the quantum
wells, a proper geometrical arrangement of the plasmonic elements permits the
redirection of the second-harmonic light to free-space radiation, which is emitted
perpendicular to the surface.
article_number: '2134'
article_type: original
author:
- first_name: Jan
full_name: Mundry, Jan
last_name: Mundry
- first_name: Florian
full_name: Spreyer, Florian
last_name: Spreyer
- first_name: Valentin
full_name: Jmerik, Valentin
last_name: Jmerik
- first_name: Sergey
full_name: Ivanov, Sergey
last_name: Ivanov
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
citation:
ama: Mundry J, Spreyer F, Jmerik V, Ivanov S, Zentgraf T, Betz M. Nonlinear metasurface
combining telecom-range intersubband transitions in GaN/AlN quantum wells with
resonant plasmonic antenna arrays. Optical Materials Express. 2021;11(7).
doi:10.1364/ome.426236
apa: Mundry, J., Spreyer, F., Jmerik, V., Ivanov, S., Zentgraf, T., & Betz,
M. (2021). Nonlinear metasurface combining telecom-range intersubband transitions
in GaN/AlN quantum wells with resonant plasmonic antenna arrays. Optical Materials
Express, 11(7). https://doi.org/10.1364/ome.426236
bibtex: '@article{Mundry_Spreyer_Jmerik_Ivanov_Zentgraf_Betz_2021, title={Nonlinear
metasurface combining telecom-range intersubband transitions in GaN/AlN quantum
wells with resonant plasmonic antenna arrays}, volume={11}, DOI={10.1364/ome.426236},
number={72134}, journal={Optical Materials Express}, publisher={OSA}, author={Mundry,
Jan and Spreyer, Florian and Jmerik, Valentin and Ivanov, Sergey and Zentgraf,
Thomas and Betz, Markus}, year={2021} }'
chicago: Mundry, Jan, Florian Spreyer, Valentin Jmerik, Sergey Ivanov, Thomas Zentgraf,
and Markus Betz. “Nonlinear Metasurface Combining Telecom-Range Intersubband Transitions
in GaN/AlN Quantum Wells with Resonant Plasmonic Antenna Arrays.” Optical Materials
Express 11, no. 7 (2021). https://doi.org/10.1364/ome.426236.
ieee: J. Mundry, F. Spreyer, V. Jmerik, S. Ivanov, T. Zentgraf, and M. Betz, “Nonlinear
metasurface combining telecom-range intersubband transitions in GaN/AlN quantum
wells with resonant plasmonic antenna arrays,” Optical Materials Express,
vol. 11, no. 7, 2021.
mla: Mundry, Jan, et al. “Nonlinear Metasurface Combining Telecom-Range Intersubband
Transitions in GaN/AlN Quantum Wells with Resonant Plasmonic Antenna Arrays.”
Optical Materials Express, vol. 11, no. 7, 2134, OSA, 2021, doi:10.1364/ome.426236.
short: J. Mundry, F. Spreyer, V. Jmerik, S. Ivanov, T. Zentgraf, M. Betz, Optical
Materials Express 11 (2021).
date_created: 2021-06-16T05:52:21Z
date_updated: 2022-01-06T06:55:33Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '429'
doi: 10.1364/ome.426236
intvolume: ' 11'
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-11-7-2134&id=452008
oa: '1'
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '65'
name: TRR 142 - Subproject A8
publication: Optical Materials Express
publication_identifier:
issn:
- 2159-3930
publication_status: published
publisher: OSA
quality_controlled: '1'
status: public
title: Nonlinear metasurface combining telecom-range intersubband transitions in GaN/AlN
quantum wells with resonant plasmonic antenna arrays
type: journal_article
user_id: '30525'
volume: 11
year: '2021'
...
---
_id: '26987'
abstract:
- lang: eng
text: Optical metasurfaces are perfect candidates for the phase and amplitude modulation
of light, featuring an excellent basis for holographic applications. In this work,
we present a dual amplitude holographic scheme based on the photon sieve principle,
which is then combined with a phase hologram by utilizing the Pancharatnam–Berry
phase. We demonstrate that two types of apertures, rectangular and square shapes
in a gold film filled with silicon nanoantennas are sufficient to create two amplitude
holograms at two different wavelengths in the visible, multiplexed with an additional
phase-only hologram. The nanoantennas are tailored to adjust the spectral transmittance
of the apertures, enabling the wavelength sensitivity. The phase-only hologram
is implemented by utilizing the anisotropic rectangular structure. Interestingly,
such three holograms have quantitative mathematical correlations with each other.
Thus, the flexibility of polarization and wavelength channels can be utilized
with custom-tailored features to achieve such amplitude and phase holography simultaneously
without sacrificing any space-bandwidth product. The present scheme has the potential
to store different pieces of information which can be displayed separately by
switching the wavelength or the polarization state of the reading light beam.
author:
- first_name: Daniel
full_name: Frese, Daniel
last_name: Frese
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Hongqiang
full_name: Zhou, Hongqiang
last_name: Zhou
- 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: Frese D, Sain B, Zhou H, Wang Y, Huang L, Zentgraf T. A wavelength and polarization
selective photon sieve for holographic applications. Nanophotonics. 2021;10(18):4543-4550.
doi:10.1515/nanoph-2021-0440
apa: Frese, D., Sain, B., Zhou, H., Wang, Y., Huang, L., & Zentgraf, T. (2021).
A wavelength and polarization selective photon sieve for holographic applications.
Nanophotonics, 10(18), 4543–4550. https://doi.org/10.1515/nanoph-2021-0440
bibtex: '@article{Frese_Sain_Zhou_Wang_Huang_Zentgraf_2021, title={A wavelength
and polarization selective photon sieve for holographic applications}, volume={10},
DOI={10.1515/nanoph-2021-0440},
number={18}, journal={Nanophotonics}, publisher={De Gruyter}, author={Frese, Daniel
and Sain, Basudeb and Zhou, Hongqiang and Wang, Yongtian and Huang, Lingling and
Zentgraf, Thomas}, year={2021}, pages={4543–4550} }'
chicago: 'Frese, Daniel, Basudeb Sain, Hongqiang Zhou, Yongtian Wang, Lingling Huang,
and Thomas Zentgraf. “A Wavelength and Polarization Selective Photon Sieve for
Holographic Applications.” Nanophotonics 10, no. 18 (2021): 4543–50. https://doi.org/10.1515/nanoph-2021-0440.'
ieee: 'D. Frese, B. Sain, H. Zhou, Y. Wang, L. Huang, and T. Zentgraf, “A wavelength
and polarization selective photon sieve for holographic applications,” Nanophotonics,
vol. 10, no. 18, pp. 4543–4550, 2021, doi: 10.1515/nanoph-2021-0440.'
mla: Frese, Daniel, et al. “A Wavelength and Polarization Selective Photon Sieve
for Holographic Applications.” Nanophotonics, vol. 10, no. 18, De Gruyter,
2021, pp. 4543–50, doi:10.1515/nanoph-2021-0440.
short: D. Frese, B. Sain, H. Zhou, Y. Wang, L. Huang, T. Zentgraf, Nanophotonics
10 (2021) 4543–4550.
date_created: 2021-10-28T07:15:52Z
date_updated: 2022-01-20T07:33:16Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1515/nanoph-2021-0440
funded_apc: '1'
intvolume: ' 10'
issue: '18'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0440/html
oa: '1'
page: 4543-4550
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '65'
name: TRR 142 - Subproject A8
publication: Nanophotonics
publication_identifier:
issn:
- 2192-8614
- 2192-8606
publication_status: published
publisher: De Gruyter
quality_controlled: '1'
status: public
title: A wavelength and polarization selective photon sieve for holographic applications
type: journal_article
user_id: '30525'
volume: 10
year: '2021'
...
---
_id: '25227'
abstract:
- lang: eng
text: AbstractQuantum well (QW) heterostructures
have been extensively used for the realization of a wide range of optical and
electronic devices. Exploiting their potential for further improvement and development
requires a fundamental understanding of their electronic structure. So far, the
most commonly used experimental techniques for this purpose have been all-optical
spectroscopy methods that, however, are generally averaging in momentum space.
Additional information can be gained by angle-resolved photoelectron spectroscopy
(ARPES), which measures the electronic structure with momentum resolution. Here
we report on the use of extremely low-energy ARPES (photon energy ~ 7 eV) to increase
depth sensitivity and access buried QW states, located at 3 nm and 6 nm below
the surface of cubic-GaN/AlN and GaAs/AlGaAs heterostructures, respectively. We
find that the QW states in cubic-GaN/AlN can indeed be observed, but not their
energy dispersion, because of the high surface roughness. The GaAs/AlGaAs QW states,
on the other hand, are buried too deep to be detected by extremely low-energy
ARPES. Since the sample surface is much flatter, the ARPES spectra of the GaAs/AlGaAs
show distinct features in momentum space, which can be reconducted to the band
structure of the topmost surface layer of the QW structure. Our results provide
important information about the samples’ properties required to perform extremely
low-energy ARPES experiments on electronic states buried in semiconductor heterostructures.
article_number: '19081'
article_type: original
author:
- first_name: Mahdi
full_name: Hajlaoui, Mahdi
last_name: Hajlaoui
- first_name: Stefano
full_name: Ponzoni, Stefano
last_name: Ponzoni
- first_name: Michael
full_name: Deppe, Michael
last_name: Deppe
- first_name: Tobias
full_name: Henksmeier, Tobias
last_name: Henksmeier
- first_name: Donat Josef
full_name: As, Donat Josef
id: '14'
last_name: As
orcid: 0000-0003-1121-3565
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Gunther
full_name: Springholz, Gunther
last_name: Springholz
- first_name: Claus Michael
full_name: Schneider, Claus Michael
last_name: Schneider
- first_name: Stefan
full_name: Cramm, Stefan
last_name: Cramm
- first_name: Mirko
full_name: Cinchetti, Mirko
last_name: Cinchetti
citation:
ama: Hajlaoui M, Ponzoni S, Deppe M, et al. Extremely low-energy ARPES of quantum
well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures. Scientific Reports.
2021;11. doi:10.1038/s41598-021-98569-6
apa: Hajlaoui, M., Ponzoni, S., Deppe, M., Henksmeier, T., As, D. J., Reuter, D.,
Zentgraf, T., Springholz, G., Schneider, C. M., Cramm, S., & Cinchetti, M.
(2021). Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and
GaAs/AlGaAs heterostructures. Scientific Reports, 11, Article 19081.
https://doi.org/10.1038/s41598-021-98569-6
bibtex: '@article{Hajlaoui_Ponzoni_Deppe_Henksmeier_As_Reuter_Zentgraf_Springholz_Schneider_Cramm_et
al._2021, title={Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN
and GaAs/AlGaAs heterostructures}, volume={11}, DOI={10.1038/s41598-021-98569-6},
number={19081}, journal={Scientific Reports}, author={Hajlaoui, Mahdi and Ponzoni,
Stefano and Deppe, Michael and Henksmeier, Tobias and As, Donat Josef and Reuter,
Dirk and Zentgraf, Thomas and Springholz, Gunther and Schneider, Claus Michael
and Cramm, Stefan and et al.}, year={2021} }'
chicago: Hajlaoui, Mahdi, Stefano Ponzoni, Michael Deppe, Tobias Henksmeier, Donat
Josef As, Dirk Reuter, Thomas Zentgraf, et al. “Extremely Low-Energy ARPES of
Quantum Well States in Cubic-GaN/AlN and GaAs/AlGaAs Heterostructures.” Scientific
Reports 11 (2021). https://doi.org/10.1038/s41598-021-98569-6.
ieee: 'M. Hajlaoui et al., “Extremely low-energy ARPES of quantum well states
in cubic-GaN/AlN and GaAs/AlGaAs heterostructures,” Scientific Reports,
vol. 11, Art. no. 19081, 2021, doi: 10.1038/s41598-021-98569-6.'
mla: Hajlaoui, Mahdi, et al. “Extremely Low-Energy ARPES of Quantum Well States
in Cubic-GaN/AlN and GaAs/AlGaAs Heterostructures.” Scientific Reports,
vol. 11, 19081, 2021, doi:10.1038/s41598-021-98569-6.
short: M. Hajlaoui, S. Ponzoni, M. Deppe, T. Henksmeier, D.J. As, D. Reuter, T.
Zentgraf, G. Springholz, C.M. Schneider, S. Cramm, M. Cinchetti, Scientific Reports
11 (2021).
date_created: 2021-10-01T07:29:15Z
date_updated: 2023-10-09T09:15:12Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
doi: 10.1038/s41598-021-98569-6
intvolume: ' 11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.nature.com/articles/s41598-021-98569-6
oa: '1'
project:
- _id: '53'
grant_number: '231447078'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '65'
grant_number: '231447078'
name: TRR 142 - Subproject A8
- _id: '55'
name: TRR 142 - Project Area B
- _id: '67'
name: TRR 142 - Subproject B2
- _id: '63'
grant_number: '231447078'
name: TRR 142 - Subproject A6
publication: Scientific Reports
publication_identifier:
issn:
- 2045-2322
publication_status: published
quality_controlled: '1'
status: public
title: Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs
heterostructures
type: journal_article
user_id: '14931'
volume: 11
year: '2021'
...
---
_id: '54402'
abstract:
- lang: eng
text: 'Dataset of the publication “Nondegenerate two-photon absorption in ZnSe:
Experiment and theory“, L. Krauss-Kodytek, W.-R. Hannes, T. Meier, C. Ruppert,
and M. Betz, Phys. Rev. B 104, 085201 (2021). ( https://doi.org/10.1103/PhysRevB.104.085201
). The zip file includes the data on which the plots shown in figures 3, 4, and
5 are based.'
author:
- first_name: Laura
full_name: Krauss-Kodytek, Laura
last_name: Krauss-Kodytek
- first_name: Wolf-Rüdiger
full_name: Hannes, Wolf-Rüdiger
last_name: Hannes
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Claudia
full_name: Ruppert, Claudia
last_name: Ruppert
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
citation:
ama: 'Krauss-Kodytek L, Hannes W-R, Meier T, Ruppert C, Betz M. Nondegenerate
Two-Photon Absorption in ZnSe: Experiment and Theory. LibreCat University;
2021. doi:10.5281/ZENODO.5195116'
apa: 'Krauss-Kodytek, L., Hannes, W.-R., Meier, T., Ruppert, C., & Betz, M.
(2021). Nondegenerate two-photon absorption in ZnSe: Experiment and theory.
LibreCat University. https://doi.org/10.5281/ZENODO.5195116'
bibtex: '@book{Krauss-Kodytek_Hannes_Meier_Ruppert_Betz_2021, title={Nondegenerate
two-photon absorption in ZnSe: Experiment and theory}, DOI={10.5281/ZENODO.5195116},
publisher={LibreCat University}, author={Krauss-Kodytek, Laura and Hannes, Wolf-Rüdiger
and Meier, Torsten and Ruppert, Claudia and Betz, Markus}, year={2021} }'
chicago: 'Krauss-Kodytek, Laura, Wolf-Rüdiger Hannes, Torsten Meier, Claudia Ruppert,
and Markus Betz. Nondegenerate Two-Photon Absorption in ZnSe: Experiment and
Theory. LibreCat University, 2021. https://doi.org/10.5281/ZENODO.5195116.'
ieee: 'L. Krauss-Kodytek, W.-R. Hannes, T. Meier, C. Ruppert, and M. Betz, Nondegenerate
two-photon absorption in ZnSe: Experiment and theory. LibreCat University,
2021.'
mla: 'Krauss-Kodytek, Laura, et al. Nondegenerate Two-Photon Absorption in ZnSe:
Experiment and Theory. LibreCat University, 2021, doi:10.5281/ZENODO.5195116.'
short: 'L. Krauss-Kodytek, W.-R. Hannes, T. Meier, C. Ruppert, M. Betz, Nondegenerate
Two-Photon Absorption in ZnSe: Experiment and Theory, LibreCat University, 2021.'
date_created: 2024-05-21T14:28:08Z
date_updated: 2024-07-15T09:34:10Z
department:
- _id: '15'
- _id: '293'
- _id: '35'
- _id: '170'
- _id: '230'
- _id: '429'
doi: 10.5281/ZENODO.5195116
project:
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
publisher: LibreCat University
status: public
title: 'Nondegenerate two-photon absorption in ZnSe: Experiment and theory'
type: research_data
user_id: '16199'
year: '2021'
...
---
_id: '54401'
abstract:
- lang: eng
text: Dataset of the publication “Controlling the emission time of photon echoes
by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles“,
Proc. SPIE 11684,116840X (2021) ( https://doi.org/10.1117/12.2576887 ). The zip
file includes the data on which the figures are based, the gnuplot files for the
figures, and an explaining readme.txt.
author:
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: Alexander N.
full_name: Kosarev, Alexander N.
last_name: Kosarev
- first_name: Sergey V.
full_name: Poltavtsev, Sergey V.
last_name: Poltavtsev
- first_name: Manfred
full_name: Bayer, Manfred
last_name: Bayer
- first_name: Ilya A.
full_name: Akimov, Ilya A.
last_name: Akimov
- first_name: Christian
full_name: Schneider, Christian
last_name: Schneider
- first_name: Martin
full_name: Kamp, Martin
last_name: Kamp
- first_name: Sven
full_name: Höfling, Sven
last_name: Höfling
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Reichelt M, Rose H, Kosarev AN, et al. Controlling the Emission Time of
Photon Echoes by Optical Freezing of Exciton Dephasing and Rephasing in Quantum-Dot
Ensembles. LibreCat University; 2021. doi:10.5281/ZENODO.5226911
apa: Reichelt, M., Rose, H., Kosarev, A. N., Poltavtsev, S. V., Bayer, M., Akimov,
I. A., Schneider, C., Kamp, M., Höfling, S., & Meier, T. (2021). Controlling
the emission time of photon echoes by optical freezing of exciton dephasing and
rephasing in quantum-dot ensembles. LibreCat University. https://doi.org/10.5281/ZENODO.5226911
bibtex: '@book{Reichelt_Rose_Kosarev_Poltavtsev_Bayer_Akimov_Schneider_Kamp_Höfling_Meier_2021,
title={Controlling the emission time of photon echoes by optical freezing of exciton
dephasing and rephasing in quantum-dot ensembles}, DOI={10.5281/ZENODO.5226911},
publisher={LibreCat University}, author={Reichelt, Matthias and Rose, Hendrik
and Kosarev, Alexander N. and Poltavtsev, Sergey V. and Bayer, Manfred and Akimov,
Ilya A. and Schneider, Christian and Kamp, Martin and Höfling, Sven and Meier,
Torsten}, year={2021} }'
chicago: Reichelt, Matthias, Hendrik Rose, Alexander N. Kosarev, Sergey V. Poltavtsev,
Manfred Bayer, Ilya A. Akimov, Christian Schneider, Martin Kamp, Sven Höfling,
and Torsten Meier. Controlling the Emission Time of Photon Echoes by Optical
Freezing of Exciton Dephasing and Rephasing in Quantum-Dot Ensembles. LibreCat
University, 2021. https://doi.org/10.5281/ZENODO.5226911.
ieee: M. Reichelt et al., Controlling the emission time of photon echoes
by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles.
LibreCat University, 2021.
mla: Reichelt, Matthias, et al. Controlling the Emission Time of Photon Echoes
by Optical Freezing of Exciton Dephasing and Rephasing in Quantum-Dot Ensembles.
LibreCat University, 2021, doi:10.5281/ZENODO.5226911.
short: M. Reichelt, H. Rose, A.N. Kosarev, S.V. Poltavtsev, M. Bayer, I.A. Akimov,
C. Schneider, M. Kamp, S. Höfling, T. Meier, Controlling the Emission Time of
Photon Echoes by Optical Freezing of Exciton Dephasing and Rephasing in Quantum-Dot
Ensembles, LibreCat University, 2021.
date_created: 2024-05-21T14:25:20Z
date_updated: 2024-07-15T09:36:00Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '230'
- _id: '429'
doi: 10.5281/ZENODO.5226911
project:
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
publisher: LibreCat University
status: public
title: Controlling the emission time of photon echoes by optical freezing of exciton
dephasing and rephasing in quantum-dot ensembles
type: research_data
user_id: '16199'
year: '2021'
...
---
_id: '26283'
author:
- first_name: Carolin
full_name: Lüders, Carolin
last_name: Lüders
- first_name: Matthias
full_name: Pukrop, Matthias
id: '64535'
last_name: Pukrop
- first_name: Elena
full_name: Rozas, Elena
last_name: Rozas
- first_name: Christian
full_name: Schneider, Christian
last_name: Schneider
- first_name: Sven
full_name: Höfling, Sven
last_name: Höfling
- 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, Pukrop M, Rozas E, et al. Quantifying Quantum Coherence in Polariton
Condensates. PRX Quantum. Published online 2021. doi:10.1103/prxquantum.2.030320
apa: Lüders, C., Pukrop, M., Rozas, E., Schneider, C., Höfling, S., Sperling, J.,
Schumacher, S., & Aßmann, M. (2021). Quantifying Quantum Coherence in Polariton
Condensates. PRX Quantum. https://doi.org/10.1103/prxquantum.2.030320
bibtex: '@article{Lüders_Pukrop_Rozas_Schneider_Höfling_Sperling_Schumacher_Aßmann_2021,
title={Quantifying Quantum Coherence in Polariton Condensates}, DOI={10.1103/prxquantum.2.030320},
journal={PRX Quantum}, author={Lüders, Carolin and Pukrop, Matthias and Rozas,
Elena and Schneider, Christian and Höfling, Sven and Sperling, Jan and Schumacher,
Stefan and Aßmann, Marc}, year={2021} }'
chicago: Lüders, Carolin, Matthias Pukrop, Elena Rozas, Christian Schneider, Sven
Höfling, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Quantifying Quantum
Coherence in Polariton Condensates.” PRX Quantum, 2021. https://doi.org/10.1103/prxquantum.2.030320.
ieee: 'C. Lüders et al., “Quantifying Quantum Coherence in Polariton Condensates,”
PRX Quantum, 2021, doi: 10.1103/prxquantum.2.030320.'
mla: Lüders, Carolin, et al. “Quantifying Quantum Coherence in Polariton Condensates.”
PRX Quantum, 2021, doi:10.1103/prxquantum.2.030320.
short: C. Lüders, M. Pukrop, E. Rozas, C. Schneider, S. Höfling, J. Sperling, S.
Schumacher, M. Aßmann, PRX Quantum (2021).
date_created: 2021-10-15T16:00:39Z
date_updated: 2023-04-20T15:11:36Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '706'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/prxquantum.2.030320
language:
- iso: eng
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'
publication: PRX Quantum
publication_identifier:
issn:
- 2691-3399
publication_status: published
status: public
title: Quantifying Quantum Coherence in Polariton Condensates
type: journal_article
user_id: '16199'
year: '2021'
...
---
_id: '37331'
abstract:
- lang: eng
text: High harmonic generation (HHG) from solids shows great application
prospects in compact short-wavelength light sources and as a tool for imaging
the dynamics in crystals with subnanometer spatial and attosecond temporal resolution.
However, the underlying collision dynamics behind solid HHG is still intensively
debated and no direct mapping relationship between the collision dynamics with
band structure has been built. Here, we show that the electron and its associated
hole can be elastically scattered by neighboring atoms when their wavelength approaches
the atomic size. We reveal that the elastic scattering of electron/hole from neighboring
atoms can dramatically influence the electron recombination with its left-behind
hole, which turns out to be the fundamental reason for the anisotropic interband
HHG observed recently in bulk crystals. Our findings link the electron/hole backward
scattering with Van Hove singularities and forward scattering with critical lines
in the band structure and thus build a clear mapping between the band structure
and the harmonic spectrum. Our work provides a unifying picture for several seemingly
unrelated experimental observations and theoretical predictions, including the
anisotropic harmonic emission in MgO, the atomic-like recollision mechanism of
solid HHG, and the delocalization of HHG in ZnO. This strongly improved understanding
will pave the way for controlling the solid-state HHG and visualizing the structure-dependent
electron dynamics in solids.
author:
- first_name: Ruixin
full_name: Zuo, Ruixin
last_name: Zuo
- first_name: Alexander
full_name: Trautmann, Alexander
id: '38163'
last_name: Trautmann
- first_name: Guifang
full_name: Wang, Guifang
last_name: Wang
- first_name: Wolf-Rüdiger
full_name: Hannes, Wolf-Rüdiger
last_name: Hannes
- first_name: Shidong
full_name: Yang, Shidong
last_name: Yang
- first_name: Xiaohong
full_name: Song, Xiaohong
last_name: Song
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Marcelo
full_name: Ciappina, Marcelo
last_name: Ciappina
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Weifeng
full_name: Yang, Weifeng
last_name: Yang
citation:
ama: Zuo R, Trautmann A, Wang G, et al. Neighboring Atom Collisions in Solid-State
High Harmonic Generation. Ultrafast Science. 2021;2021. doi:10.34133/2021/9861923
apa: Zuo, R., Trautmann, A., Wang, G., Hannes, W.-R., Yang, S., Song, X., Meier,
T., Ciappina, M., Duc, H. T., & Yang, W. (2021). Neighboring Atom Collisions
in Solid-State High Harmonic Generation. Ultrafast Science, 2021.
https://doi.org/10.34133/2021/9861923
bibtex: '@article{Zuo_Trautmann_Wang_Hannes_Yang_Song_Meier_Ciappina_Duc_Yang_2021,
title={Neighboring Atom Collisions in Solid-State High Harmonic Generation}, volume={2021},
DOI={10.34133/2021/9861923},
journal={Ultrafast Science}, publisher={American Association for the Advancement
of Science (AAAS)}, author={Zuo, Ruixin and Trautmann, Alexander and Wang, Guifang
and Hannes, Wolf-Rüdiger and Yang, Shidong and Song, Xiaohong and Meier, Torsten
and Ciappina, Marcelo and Duc, Huynh Thanh and Yang, Weifeng}, year={2021} }'
chicago: Zuo, Ruixin, Alexander Trautmann, Guifang Wang, Wolf-Rüdiger Hannes, Shidong
Yang, Xiaohong Song, Torsten Meier, Marcelo Ciappina, Huynh Thanh Duc, and Weifeng
Yang. “Neighboring Atom Collisions in Solid-State High Harmonic Generation.” Ultrafast
Science 2021 (2021). https://doi.org/10.34133/2021/9861923.
ieee: 'R. Zuo et al., “Neighboring Atom Collisions in Solid-State High Harmonic
Generation,” Ultrafast Science, vol. 2021, 2021, doi: 10.34133/2021/9861923.'
mla: Zuo, Ruixin, et al. “Neighboring Atom Collisions in Solid-State High Harmonic
Generation.” Ultrafast Science, vol. 2021, American Association for the
Advancement of Science (AAAS), 2021, doi:10.34133/2021/9861923.
short: R. Zuo, A. Trautmann, G. Wang, W.-R. Hannes, S. Yang, X. Song, T. Meier,
M. Ciappina, H.T. Duc, W. Yang, Ultrafast Science 2021 (2021).
date_created: 2023-01-18T11:25:42Z
date_updated: 2023-04-21T11:11:08Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '35'
doi: 10.34133/2021/9861923
intvolume: ' 2021'
language:
- iso: eng
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: '64'
name: 'TRR 142 - A7: TRR 142 - Subproject A7'
publication: Ultrafast Science
publication_identifier:
issn:
- 2765-8791
publication_status: published
publisher: American Association for the Advancement of Science (AAAS)
status: public
title: Neighboring Atom Collisions in Solid-State High Harmonic Generation
type: journal_article
user_id: '16199'
volume: 2021
year: '2021'
...
---
_id: '37338'
abstract:
- lang: eng
text: AbstractMethylammonium lead iodide perovskite
(MAPbI3) is renowned for an impressive power conversion efficiency
rise and cost-effective fabrication for photovoltaics. In this work, we demonstrate
that polycrystalline MAPbI3s undergo drastic changes in optical
properties at moderate field strengths with an ultrafast response time, via transient
Wannier Stark localization. The distinct band structure of this material - the
large lattice periodicity, the narrow electronic energy bandwidths, and the coincidence
of these two along the same high-symmetry direction – enables relatively weak
fields to bring this material into the Wannier Stark regime. Its polycrystalline
nature is not detrimental to the optical switching performance of the material,
since the least dispersive direction of the band structure dominates the contribution
to the optical response, which favors low-cost fabrication. Together with the
outstanding photophysical properties of MAPbI3, this finding
highlights the great potential of this material in ultrafast light modulation
and novel photonic applications.
article_number: '5719'
author:
- first_name: Daniel
full_name: Berghoff, Daniel
id: '38175'
last_name: Berghoff
- first_name: Johannes
full_name: Bühler, Johannes
last_name: Bühler
- first_name: Mischa
full_name: Bonn, Mischa
last_name: Bonn
- first_name: Alfred
full_name: Leitenstorfer, Alfred
last_name: Leitenstorfer
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Heejae
full_name: Kim, Heejae
last_name: Kim
citation:
ama: Berghoff D, Bühler J, Bonn M, Leitenstorfer A, Meier T, Kim H. Low-field onset
of Wannier-Stark localization in a polycrystalline hybrid organic inorganic perovskite.
Nature Communications. 2021;12(1). doi:10.1038/s41467-021-26021-4
apa: Berghoff, D., Bühler, J., Bonn, M., Leitenstorfer, A., Meier, T., & Kim,
H. (2021). Low-field onset of Wannier-Stark localization in a polycrystalline
hybrid organic inorganic perovskite. Nature Communications, 12(1),
Article 5719. https://doi.org/10.1038/s41467-021-26021-4
bibtex: '@article{Berghoff_Bühler_Bonn_Leitenstorfer_Meier_Kim_2021, title={Low-field
onset of Wannier-Stark localization in a polycrystalline hybrid organic inorganic
perovskite}, volume={12}, DOI={10.1038/s41467-021-26021-4},
number={15719}, journal={Nature Communications}, publisher={Springer Science and
Business Media LLC}, author={Berghoff, Daniel and Bühler, Johannes and Bonn, Mischa
and Leitenstorfer, Alfred and Meier, Torsten and Kim, Heejae}, year={2021} }'
chicago: Berghoff, Daniel, Johannes Bühler, Mischa Bonn, Alfred Leitenstorfer, Torsten
Meier, and Heejae Kim. “Low-Field Onset of Wannier-Stark Localization in a Polycrystalline
Hybrid Organic Inorganic Perovskite.” Nature Communications 12, no. 1 (2021).
https://doi.org/10.1038/s41467-021-26021-4.
ieee: 'D. Berghoff, J. Bühler, M. Bonn, A. Leitenstorfer, T. Meier, and H. Kim,
“Low-field onset of Wannier-Stark localization in a polycrystalline hybrid organic
inorganic perovskite,” Nature Communications, vol. 12, no. 1, Art. no.
5719, 2021, doi: 10.1038/s41467-021-26021-4.'
mla: Berghoff, Daniel, et al. “Low-Field Onset of Wannier-Stark Localization in
a Polycrystalline Hybrid Organic Inorganic Perovskite.” Nature Communications,
vol. 12, no. 1, 5719, Springer Science and Business Media LLC, 2021, doi:10.1038/s41467-021-26021-4.
short: D. Berghoff, J. Bühler, M. Bonn, A. Leitenstorfer, T. Meier, H. Kim, Nature
Communications 12 (2021).
date_created: 2023-01-18T11:47:55Z
date_updated: 2023-04-21T11:14:19Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '35'
doi: 10.1038/s41467-021-26021-4
intvolume: ' 12'
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: '59'
name: 'TRR 142 - A2: TRR 142 - Subproject A2'
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Low-field onset of Wannier-Stark localization in a polycrystalline hybrid organic
inorganic perovskite
type: journal_article
user_id: '16199'
volume: 12
year: '2021'
...
---
_id: '23474'
article_number: 116840X
author:
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: Alexander N.
full_name: Kosarev, Alexander N.
last_name: Kosarev
- first_name: Sergey V.
full_name: Poltavtsev, Sergey V.
last_name: Poltavtsev
- first_name: Manfred
full_name: Bayer, Manfred
last_name: Bayer
- first_name: Ilya A.
full_name: Akimov, Ilya A.
last_name: Akimov
- first_name: Christian
full_name: Schneider, Christian
last_name: Schneider
- first_name: Martin
full_name: Kamp, Martin
last_name: Kamp
- first_name: Sven
full_name: Höfling, Sven
last_name: Höfling
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Reichelt M, Rose H, Kosarev AN, et al. Controlling the emission time of photon
echoes by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles.
In: Betz M, Elezzabi AY, eds. Ultrafast Phenomena and Nanophotonics XXV.
Vol 11684. SPIE Proceedings. ; 2021. doi:10.1117/12.2576887'
apa: Reichelt, M., Rose, H., Kosarev, A. N., Poltavtsev, S. V., Bayer, M., Akimov,
I. A., Schneider, C., Kamp, M., Höfling, S., & Meier, T. (2021). Controlling
the emission time of photon echoes by optical freezing of exciton dephasing and
rephasing in quantum-dot ensembles. In M. Betz & A. Y. Elezzabi (Eds.), Ultrafast
Phenomena and Nanophotonics XXV (No. 116840X; Vol. 11684). https://doi.org/10.1117/12.2576887
bibtex: '@inproceedings{Reichelt_Rose_Kosarev_Poltavtsev_Bayer_Akimov_Schneider_Kamp_Höfling_Meier_2021,
series={SPIE Proceedings}, title={Controlling the emission time of photon echoes
by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles},
volume={11684}, DOI={10.1117/12.2576887},
number={116840X}, booktitle={Ultrafast Phenomena and Nanophotonics XXV}, author={Reichelt,
Matthias and Rose, Hendrik and Kosarev, Alexander N. and Poltavtsev, Sergey V.
and Bayer, Manfred and Akimov, Ilya A. and Schneider, Christian and Kamp, Martin
and Höfling, Sven and Meier, Torsten}, editor={Betz, Markus and Elezzabi, Abdulhakem
Y.}, year={2021}, collection={SPIE Proceedings} }'
chicago: Reichelt, Matthias, Hendrik Rose, Alexander N. Kosarev, Sergey V. Poltavtsev,
Manfred Bayer, Ilya A. Akimov, Christian Schneider, Martin Kamp, Sven Höfling,
and Torsten Meier. “Controlling the Emission Time of Photon Echoes by Optical
Freezing of Exciton Dephasing and Rephasing in Quantum-Dot Ensembles.” In Ultrafast
Phenomena and Nanophotonics XXV, edited by Markus Betz and Abdulhakem Y. Elezzabi,
Vol. 11684. SPIE Proceedings, 2021. https://doi.org/10.1117/12.2576887.
ieee: 'M. Reichelt et al., “Controlling the emission time of photon echoes
by optical freezing of exciton dephasing and rephasing in quantum-dot ensembles,”
in Ultrafast Phenomena and Nanophotonics XXV, 2021, vol. 11684, doi: 10.1117/12.2576887.'
mla: Reichelt, Matthias, et al. “Controlling the Emission Time of Photon Echoes
by Optical Freezing of Exciton Dephasing and Rephasing in Quantum-Dot Ensembles.”
Ultrafast Phenomena and Nanophotonics XXV, edited by Markus Betz and Abdulhakem
Y. Elezzabi, vol. 11684, 116840X, 2021, doi:10.1117/12.2576887.
short: 'M. Reichelt, H. Rose, A.N. Kosarev, S.V. Poltavtsev, M. Bayer, I.A. Akimov,
C. Schneider, M. Kamp, S. Höfling, T. Meier, in: M. Betz, A.Y. Elezzabi (Eds.),
Ultrafast Phenomena and Nanophotonics XXV, 2021.'
date_created: 2021-08-24T08:46:40Z
date_updated: 2023-04-21T11:20:10Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '35'
doi: 10.1117/12.2576887
editor:
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 11684'
language:
- iso: eng
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '59'
name: TRR 142 - Subproject A2
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Ultrafast Phenomena and Nanophotonics XXV
publication_status: published
series_title: SPIE Proceedings
status: public
title: Controlling the emission time of photon echoes by optical freezing of exciton
dephasing and rephasing in quantum-dot ensembles
type: conference
user_id: '16199'
volume: 11684
year: '2021'
...