---
_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: '41800'
author:
- first_name: M
full_name: Sartison, M
last_name: Sartison
- first_name: O
full_name: ' Camacho Ibarra, O'
last_name: ' Camacho Ibarra'
- first_name: Klaus D.
full_name: Jöns, Klaus D.
id: '85353'
last_name: Jöns
- first_name: I
full_name: Caltzidis, I
last_name: Caltzidis
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
citation:
ama: Sartison M, Camacho Ibarra O, Jöns KD, Caltzidis I, Reuter D. Scalable integration
of quantum emitters into photonic integrated circuits. 2022;2. doi:https://doi.org/10.1088/2633-4356/ac6f3e
apa: Sartison, M., Camacho Ibarra, O., Jöns, K. D., Caltzidis, I., & Reuter,
D. (2022). Scalable integration of quantum emitters into photonic integrated
circuits (Vol. 2). https://doi.org/10.1088/2633-4356/ac6f3e
bibtex: '@article{Sartison_ Camacho Ibarra_Jöns_Caltzidis_Reuter_2022, series={Materials
for Quantum Technology}, title={Scalable integration of quantum emitters into
photonic integrated circuits}, volume={2}, DOI={https://doi.org/10.1088/2633-4356/ac6f3e},
author={Sartison, M and Camacho Ibarra, O and Jöns, Klaus D. and Caltzidis, I
and Reuter, Dirk}, year={2022}, collection={Materials for Quantum Technology}
}'
chicago: Sartison, M, O Camacho Ibarra, Klaus D. Jöns, I Caltzidis, and Dirk Reuter.
“Scalable integration of quantum emitters into photonic integrated circuits.”
Materials for Quantum Technology, 2022. https://doi.org/10.1088/2633-4356/ac6f3e.
ieee: 'M. Sartison, O. Camacho Ibarra, K. D. Jöns, I. Caltzidis, and D. Reuter,
“Scalable integration of quantum emitters into photonic integrated circuits,”
vol. 2. 2022, doi: https://doi.org/10.1088/2633-4356/ac6f3e.'
mla: Sartison, M., et al. Scalable integration of quantum emitters into photonic
integrated circuits. 2022, doi:https://doi.org/10.1088/2633-4356/ac6f3e.
short: M. Sartison, O. Camacho Ibarra, K.D. Jöns, I. Caltzidis, D. Reuter, 2 (2022).
date_created: 2023-02-06T02:30:08Z
date_updated: 2025-12-11T13:09:55Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
doi: https://doi.org/10.1088/2633-4356/ac6f3e
intvolume: ' 2'
language:
- iso: ger
publication_status: published
series_title: Materials for Quantum Technology
status: public
title: Scalable integration of quantum emitters into photonic integrated circuits
type: conference
user_id: '48188'
volume: 2
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: '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: '23815'
abstract:
- lang: eng
text: In this paper, silicon oxynitride films (SiON) grown by plasma-enhanced chemical
vapor deposition are investigated. As precursor gases silane (SiH4), nitrous oxide
(N2O), nitrogen (N2) and ammonia (NH3) are used with different compositions. We
find that for achieving high nitrogen content adding ammonia to the precursor
mix is most efficient. Moreover, we investigate the balance between adsorption
and desorption processes during film growth by investigating the film growth rate
as a function of the substrate temperature. From these data we are able to determine
an effective activation energy for the film growth, corresponding to the difference
between adsorption and desorption energy. Finally, we have thoroughly investigated
the optical properties of the films using spectroscopic ellipsometry. From these
measurements, we suggest a parametrized model for the refractive index and extinction
coefficient in a wide range of compositions based on a Cauchy- and a Lorentz-fit.
article_number: '138887'
article_type: original
author:
- first_name: R.
full_name: Aschwanden, R.
last_name: Aschwanden
- first_name: R.
full_name: Köthemann, R.
last_name: Köthemann
- first_name: M.
full_name: Albert, M.
last_name: Albert
- first_name: C.
full_name: Golla, C.
last_name: Golla
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Aschwanden R, Köthemann R, Albert M, Golla C, Meier C. Optical properties of
silicon oxynitride films grown by plasma-enhanced chemical vapor deposition. Thin
Solid Films. 2021;736. doi:10.1016/j.tsf.2021.138887
apa: Aschwanden, R., Köthemann, R., Albert, M., Golla, C., & Meier, C. (2021).
Optical properties of silicon oxynitride films grown by plasma-enhanced chemical
vapor deposition. Thin Solid Films, 736. https://doi.org/10.1016/j.tsf.2021.138887
bibtex: '@article{Aschwanden_Köthemann_Albert_Golla_Meier_2021, title={Optical properties
of silicon oxynitride films grown by plasma-enhanced chemical vapor deposition},
volume={736}, DOI={10.1016/j.tsf.2021.138887},
number={138887}, journal={Thin Solid Films}, author={Aschwanden, R. and Köthemann,
R. and Albert, M. and Golla, C. and Meier, Cedrik}, year={2021} }'
chicago: Aschwanden, R., R. Köthemann, M. Albert, C. Golla, and Cedrik Meier. “Optical
Properties of Silicon Oxynitride Films Grown by Plasma-Enhanced Chemical Vapor
Deposition.” Thin Solid Films 736 (2021). https://doi.org/10.1016/j.tsf.2021.138887.
ieee: R. Aschwanden, R. Köthemann, M. Albert, C. Golla, and C. Meier, “Optical properties
of silicon oxynitride films grown by plasma-enhanced chemical vapor deposition,”
Thin Solid Films, vol. 736, 2021.
mla: Aschwanden, R., et al. “Optical Properties of Silicon Oxynitride Films Grown
by Plasma-Enhanced Chemical Vapor Deposition.” Thin Solid Films, vol. 736,
138887, 2021, doi:10.1016/j.tsf.2021.138887.
short: R. Aschwanden, R. Köthemann, M. Albert, C. Golla, C. Meier, Thin Solid Films
736 (2021).
date_created: 2021-09-06T15:11:54Z
date_updated: 2022-01-06T06:56:00Z
department:
- _id: '15'
doi: 10.1016/j.tsf.2021.138887
intvolume: ' 736'
language:
- iso: eng
project:
- _id: '53'
name: TRR 142
- _id: '55'
name: TRR 142 - Project Area B
- _id: '66'
name: TRR 142 - Subproject B1
publication: Thin Solid Films
publication_identifier:
issn:
- 0040-6090
publication_status: published
status: public
title: Optical properties of silicon oxynitride films grown by plasma-enhanced chemical
vapor deposition
type: journal_article
user_id: '20798'
volume: 736
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'
...
---
_id: '20900'
article_number: '126009'
author:
- first_name: M.
full_name: Albert, M.
last_name: Albert
- first_name: C.
full_name: Golla, C.
last_name: Golla
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Albert M, Golla C, Meier C. Optical in-situ temperature management for high-quality
ZnO molecular beam epitaxy. Journal of Crystal Growth. 2021;557. doi:10.1016/j.jcrysgro.2020.126009
apa: Albert, M., Golla, C., & Meier, C. (2021). Optical in-situ temperature
management for high-quality ZnO molecular beam epitaxy. Journal of Crystal
Growth, 557. https://doi.org/10.1016/j.jcrysgro.2020.126009
bibtex: '@article{Albert_Golla_Meier_2021, title={Optical in-situ temperature management
for high-quality ZnO molecular beam epitaxy}, volume={557}, DOI={10.1016/j.jcrysgro.2020.126009},
number={126009}, journal={Journal of Crystal Growth}, author={Albert, M. and Golla,
C. and Meier, Cedrik}, year={2021} }'
chicago: Albert, M., C. Golla, and Cedrik Meier. “Optical In-Situ Temperature Management
for High-Quality ZnO Molecular Beam Epitaxy.” Journal of Crystal Growth
557 (2021). https://doi.org/10.1016/j.jcrysgro.2020.126009.
ieee: M. Albert, C. Golla, and C. Meier, “Optical in-situ temperature management
for high-quality ZnO molecular beam epitaxy,” Journal of Crystal Growth,
vol. 557, 2021.
mla: Albert, M., et al. “Optical In-Situ Temperature Management for High-Quality
ZnO Molecular Beam Epitaxy.” Journal of Crystal Growth, vol. 557, 126009,
2021, doi:10.1016/j.jcrysgro.2020.126009.
short: M. Albert, C. Golla, C. Meier, Journal of Crystal Growth 557 (2021).
date_created: 2021-01-12T13:52:31Z
date_updated: 2022-01-06T06:54:41Z
department:
- _id: '15'
- _id: '230'
- _id: '429'
doi: 10.1016/j.jcrysgro.2020.126009
intvolume: ' 557'
language:
- iso: eng
project:
- _id: '53'
name: TRR 142
- _id: '55'
name: TRR 142 - Project Area B
- _id: '66'
name: TRR 142 - Subproject B1
publication: Journal of Crystal Growth
publication_identifier:
issn:
- 0022-0248
publication_status: published
status: public
title: Optical in-situ temperature management for high-quality ZnO molecular beam
epitaxy
type: journal_article
user_id: '20798'
volume: 557
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: '21932'
abstract:
- lang: eng
text: Gaussian-beam-like bundles of semi-guided waves propagating in a dielectric
slab can excite modes with high-order optical angular momentum supported by a
circular fiber. We consider a multimode step-index fiber with a high-index coating,
where the waves in the slab are evanescently coupled to the modes of the fiber.
Conditions for effective resonant interaction are identified. Based on a hybrid
analytical–numerical coupled mode model, our simulations predict that substantial
fractions of the input power can be focused into waves with specific orbital angular
momentum, of excellent purity, with a clear distinction between degenerate modes
with opposite vorticity.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of guided waves
with high-order optical angular momentum. Journal of the Optical Society of
America B. 2021;38(5):1717. doi:10.1364/josab.422731
apa: Hammer, M., Ebers, L., & Förstner, J. (2021). Resonant evanescent excitation
of guided waves with high-order optical angular momentum. Journal of the Optical
Society of America B, 38(5), 1717. https://doi.org/10.1364/josab.422731
bibtex: '@article{Hammer_Ebers_Förstner_2021, title={Resonant evanescent excitation
of guided waves with high-order optical angular momentum}, volume={38}, DOI={10.1364/josab.422731}, number={5},
journal={Journal of the Optical Society of America B}, author={Hammer, Manfred
and Ebers, Lena and Förstner, Jens}, year={2021}, pages={1717} }'
chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation
of Guided Waves with High-Order Optical Angular Momentum.” Journal of the Optical
Society of America B 38, no. 5 (2021): 1717. https://doi.org/10.1364/josab.422731.'
ieee: M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of guided
waves with high-order optical angular momentum,” Journal of the Optical Society
of America B, vol. 38, no. 5, p. 1717, 2021.
mla: Hammer, Manfred, et al. “Resonant Evanescent Excitation of Guided Waves with
High-Order Optical Angular Momentum.” Journal of the Optical Society of America
B, vol. 38, no. 5, 2021, p. 1717, doi:10.1364/josab.422731.
short: M. Hammer, L. Ebers, J. Förstner, Journal of the Optical Society of America
B 38 (2021) 1717.
date_created: 2021-04-30T11:54:03Z
date_updated: 2022-01-06T06:55:20Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
doi: 10.1364/josab.422731
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-04-30T11:57:14Z
date_updated: 2021-04-30T11:57:14Z
file_id: '21933'
file_name: oamex.pdf
file_size: 1963211
relation: main_file
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2021-04-30T11:59:16Z
date_updated: 2021-04-30T11:59:16Z
embargo: 2022-05-01
embargo_to: open_access
file_id: '21934'
file_name: 2021-04 Hammer - JOSA B - Resonant evanescent excitation of guides waves
with high-order angular momentum.pdf
file_size: 7750006
relation: main_file
file_date_updated: 2021-04-30T11:59:16Z
has_accepted_license: '1'
intvolume: ' 38'
issue: '5'
keyword:
- tet_topic_waveguides
language:
- iso: eng
oa: '1'
page: '1717'
project:
- _id: '56'
name: TRR 142 - Project Area C
- _id: '53'
name: TRR 142
- _id: '75'
name: TRR 142 - Subproject C5
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
status: public
title: Resonant evanescent excitation of guided waves with high-order optical angular
momentum
type: journal_article
user_id: '158'
volume: 38
year: '2021'
...
---
_id: '28196'
abstract:
- lang: eng
text: We show that narrow trenches in a high-contrast silicon-photonics slab can
act as lossless power dividers for semi-guided waves. Reflectance and transmittance
can be easily configured by selecting the trench width. At sufficiently high angles
of incidence, the devices are lossless, apart from material attenuation and scattering
due to surface roughness. We numerically simulate a series of devices within the
full 0-to-1-range of splitting ratios, for semi-guided plane wave incidence as
well as for excitation by focused Gaussian wave bundles. Straightforward cascading
of the trenches leads to concepts for 1×M-power dividers and a polarization beam
splitter.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Ebers L, Förstner J. Configurable lossless broadband beam splitters
for semi-guided waves in integrated silicon photonics. OSA Continuum. 2021;4(12):3081.
doi:10.1364/osac.437549
apa: Hammer, M., Ebers, L., & Förstner, J. (2021). Configurable lossless broadband
beam splitters for semi-guided waves in integrated silicon photonics. OSA Continuum,
4(12), 3081. https://doi.org/10.1364/osac.437549
bibtex: '@article{Hammer_Ebers_Förstner_2021, title={Configurable lossless broadband
beam splitters for semi-guided waves in integrated silicon photonics}, volume={4},
DOI={10.1364/osac.437549}, number={12},
journal={OSA Continuum}, author={Hammer, Manfred and Ebers, Lena and Förstner,
Jens}, year={2021}, pages={3081} }'
chicago: 'Hammer, Manfred, Lena Ebers, and Jens Förstner. “Configurable Lossless
Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.”
OSA Continuum 4, no. 12 (2021): 3081. https://doi.org/10.1364/osac.437549.'
ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Configurable lossless broadband beam
splitters for semi-guided waves in integrated silicon photonics,” OSA Continuum,
vol. 4, no. 12, p. 3081, 2021, doi: 10.1364/osac.437549.'
mla: Hammer, Manfred, et al. “Configurable Lossless Broadband Beam Splitters for
Semi-Guided Waves in Integrated Silicon Photonics.” OSA Continuum, vol.
4, no. 12, 2021, p. 3081, doi:10.1364/osac.437549.
short: M. Hammer, L. Ebers, J. Förstner, OSA Continuum 4 (2021) 3081.
date_created: 2021-11-30T20:04:57Z
date_updated: 2022-11-18T09:58:03Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/osac.437549
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-11-30T20:07:53Z
date_updated: 2021-11-30T20:19:15Z
file_id: '28197'
file_name: 2021-11 Hammer - OSA Continuum - Trenches.pdf
file_size: 6618403
relation: main_file
file_date_updated: 2021-11-30T20:19:15Z
has_accepted_license: '1'
intvolume: ' 4'
issue: '12'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '3081'
project:
- _id: '53'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
publication: OSA Continuum
publication_identifier:
issn:
- 2578-7519
publication_status: published
status: public
title: Configurable lossless broadband beam splitters for semi-guided waves in integrated
silicon photonics
type: journal_article
user_id: '477'
volume: 4
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: '23728'
abstract:
- lang: eng
text: We demonstrate the integration of amorphous tungsten silicide superconducting
nanowire single-photon detectors on titanium in-diffused lithium niobate waveguides.
We show proof-of-principle detection of evanescently coupled photons of 1550 nm
wavelength using bidirectional waveguide coupling for two orthogonal polarization
directions. We investigate the internal detection efficiency as well as detector
absorption using coupling-independent characterization measurements. Furthermore,
we describe strategies to improve the yield and efficiency of these devices.
article_type: original
author:
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Varun B
full_name: Verma, Varun B
last_name: Verma
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Lena
full_name: Ebers, Lena
id: '40428'
last_name: Ebers
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Richard P
full_name: Mirin, Richard P
last_name: Mirin
- first_name: Sae
full_name: Woo Nam, Sae
last_name: Woo Nam
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: 'Höpker JP, Verma VB, Protte M, et al. Integrated superconducting nanowire
single-photon detectors on titanium in-diffused lithium niobate waveguides. Journal
of Physics: Photonics. 2021;3:034022. doi:10.1088/2515-7647/ac105b'
apa: 'Höpker, J. P., Verma, V. B., Protte, M., Ricken, R., Quiring, V., Eigner,
C., Ebers, L., Hammer, M., Förstner, J., Silberhorn, C., Mirin, R. P., Woo Nam,
S., & Bartley, T. (2021). Integrated superconducting nanowire single-photon
detectors on titanium in-diffused lithium niobate waveguides. Journal of Physics:
Photonics, 3, 034022. https://doi.org/10.1088/2515-7647/ac105b'
bibtex: '@article{Höpker_Verma_Protte_Ricken_Quiring_Eigner_Ebers_Hammer_Förstner_Silberhorn_et
al._2021, title={Integrated superconducting nanowire single-photon detectors on
titanium in-diffused lithium niobate waveguides}, volume={3}, DOI={10.1088/2515-7647/ac105b},
journal={Journal of Physics: Photonics}, author={Höpker, Jan Philipp and Verma,
Varun B and Protte, Maximilian and Ricken, Raimund and Quiring, Viktor and Eigner,
Christof and Ebers, Lena and Hammer, Manfred and Förstner, Jens and Silberhorn,
Christine and et al.}, year={2021}, pages={034022} }'
chicago: 'Höpker, Jan Philipp, Varun B Verma, Maximilian Protte, Raimund Ricken,
Viktor Quiring, Christof Eigner, Lena Ebers, et al. “Integrated Superconducting
Nanowire Single-Photon Detectors on Titanium in-Diffused Lithium Niobate Waveguides.”
Journal of Physics: Photonics 3 (2021): 034022. https://doi.org/10.1088/2515-7647/ac105b.'
ieee: 'J. P. Höpker et al., “Integrated superconducting nanowire single-photon
detectors on titanium in-diffused lithium niobate waveguides,” Journal of Physics:
Photonics, vol. 3, p. 034022, 2021, doi: 10.1088/2515-7647/ac105b.'
mla: 'Höpker, Jan Philipp, et al. “Integrated Superconducting Nanowire Single-Photon
Detectors on Titanium in-Diffused Lithium Niobate Waveguides.” Journal of Physics:
Photonics, vol. 3, 2021, p. 034022, doi:10.1088/2515-7647/ac105b.'
short: 'J.P. Höpker, V.B. Verma, M. Protte, R. Ricken, V. Quiring, C. Eigner, L.
Ebers, M. Hammer, J. Förstner, C. Silberhorn, R.P. Mirin, S. Woo Nam, T. Bartley,
Journal of Physics: Photonics 3 (2021) 034022.'
date_created: 2021-09-03T08:04:06Z
date_updated: 2022-10-25T07:34:42Z
ddc:
- '530'
department:
- _id: '15'
- _id: '61'
- _id: '230'
doi: 10.1088/2515-7647/ac105b
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-09-07T07:41:04Z
date_updated: 2021-09-07T07:41:04Z
file_id: '23825'
file_name: 2021-07 Höpker J._Phys._Photonics_3_034022.pdf
file_size: 1097820
relation: main_file
file_date_updated: 2021-09-07T07:41:04Z
has_accepted_license: '1'
intvolume: ' 3'
language:
- iso: eng
oa: '1'
page: '034022'
project:
- _id: '53'
name: TRR 142
publication: 'Journal of Physics: Photonics'
publication_identifier:
issn:
- 2515-7647
publication_status: published
status: public
title: Integrated superconducting nanowire single-photon detectors on titanium in-diffused
lithium niobate waveguides
type: journal_article
user_id: '49683'
volume: 3
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'
...