---
_id: '40513'
abstract:
- lang: eng
text: Geometric-phase dielectric meta-lenses made of silicon with high numerical
aperture and short focal lengths are fabricated and characterised. For circularly
polarised light, the same meta-lens can act as a converging or diverging lens,
depending on the handedness of the circular polarisation. This effect enables
application for optical tweezers that trap or release µm-size polymer beads floating
in a microfluidic channel on demand. An electrically addressable polarisation
converter based on liquid crystals may be used to switch between the two states
of polarisation, at which the light transmitted through the meta-lens is focused
(trapping) or defocussed (releasing), respectively.
author:
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Roman
full_name: Rennerich, Roman
last_name: Rennerich
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Geromel R, Rennerich R, Zentgraf T, Kitzerow H-S. Geometric-phase metalens
to be used for tunable optical tweezers in microfluidics. Liquid Crystals.
2023;50(7-10):1193-1203. doi:10.1080/02678292.2023.2171146
apa: Geromel, R., Rennerich, R., Zentgraf, T., & Kitzerow, H.-S. (2023). Geometric-phase
metalens to be used for tunable optical tweezers in microfluidics. Liquid Crystals,
50(7–10), 1193–1203. https://doi.org/10.1080/02678292.2023.2171146
bibtex: '@article{Geromel_Rennerich_Zentgraf_Kitzerow_2023, title={Geometric-phase
metalens to be used for tunable optical tweezers in microfluidics}, volume={50},
DOI={10.1080/02678292.2023.2171146},
number={7–10}, journal={Liquid Crystals}, publisher={Taylor & Francis}, author={Geromel,
René and Rennerich, Roman and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried},
year={2023}, pages={1193–1203} }'
chicago: 'Geromel, René, Roman Rennerich, Thomas Zentgraf, and Heinz-Siegfried Kitzerow.
“Geometric-Phase Metalens to Be Used for Tunable Optical Tweezers in Microfluidics.”
Liquid Crystals 50, no. 7–10 (2023): 1193–1203. https://doi.org/10.1080/02678292.2023.2171146.'
ieee: 'R. Geromel, R. Rennerich, T. Zentgraf, and H.-S. Kitzerow, “Geometric-phase
metalens to be used for tunable optical tweezers in microfluidics,” Liquid
Crystals, vol. 50, no. 7–10, pp. 1193–1203, 2023, doi: 10.1080/02678292.2023.2171146.'
mla: Geromel, René, et al. “Geometric-Phase Metalens to Be Used for Tunable Optical
Tweezers in Microfluidics.” Liquid Crystals, vol. 50, no. 7–10, Taylor
& Francis, 2023, pp. 1193–203, doi:10.1080/02678292.2023.2171146.
short: R. Geromel, R. Rennerich, T. Zentgraf, H.-S. Kitzerow, Liquid Crystals 50
(2023) 1193–1203.
date_created: 2023-01-27T12:42:16Z
date_updated: 2025-05-23T05:52:46Z
department:
- _id: '313'
- _id: '230'
- _id: '638'
- _id: '15'
- _id: '623'
doi: 10.1080/02678292.2023.2171146
intvolume: ' 50'
issue: 7-10
language:
- iso: eng
page: 1193-1203
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
grant_number: '231447078'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
publication: Liquid Crystals
publisher: Taylor & Francis
quality_controlled: '1'
status: public
title: Geometric-phase metalens to be used for tunable optical tweezers in microfluidics
type: journal_article
user_id: '30525'
volume: 50
year: '2023'
...
---
_id: '55900'
article_number: '043158'
author:
- first_name: Dennis
full_name: Scharwald, Dennis
id: '55907'
last_name: Scharwald
orcid: 0009-0007-5654-5412
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Polina
full_name: Sharapova, Polina
last_name: Sharapova
citation:
ama: Scharwald D, Meier T, Sharapova P. Phase sensitivity of spatially broadband
high-gain SU(1,1) interferometers. Physical Review Research. 2023;5(4).
doi:10.1103/physrevresearch.5.043158
apa: Scharwald, D., Meier, T., & Sharapova, P. (2023). Phase sensitivity of
spatially broadband high-gain SU(1,1) interferometers. Physical Review Research,
5(4), Article 043158. https://doi.org/10.1103/physrevresearch.5.043158
bibtex: '@article{Scharwald_Meier_Sharapova_2023, title={Phase sensitivity of spatially
broadband high-gain SU(1,1) interferometers}, volume={5}, DOI={10.1103/physrevresearch.5.043158},
number={4043158}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Scharwald, Dennis and Meier, Torsten and Sharapova, Polina},
year={2023} }'
chicago: Scharwald, Dennis, Torsten Meier, and Polina Sharapova. “Phase Sensitivity
of Spatially Broadband High-Gain SU(1,1) Interferometers.” Physical Review
Research 5, no. 4 (2023). https://doi.org/10.1103/physrevresearch.5.043158.
ieee: 'D. Scharwald, T. Meier, and P. Sharapova, “Phase sensitivity of spatially
broadband high-gain SU(1,1) interferometers,” Physical Review Research,
vol. 5, no. 4, Art. no. 043158, 2023, doi: 10.1103/physrevresearch.5.043158.'
mla: Scharwald, Dennis, et al. “Phase Sensitivity of Spatially Broadband High-Gain
SU(1,1) Interferometers.” Physical Review Research, vol. 5, no. 4, 043158,
American Physical Society (APS), 2023, doi:10.1103/physrevresearch.5.043158.
short: D. Scharwald, T. Meier, P. Sharapova, Physical Review Research 5 (2023).
date_created: 2024-08-30T04:48:05Z
date_updated: 2026-02-01T13:21:22Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '27'
doi: 10.1103/physrevresearch.5.043158
intvolume: ' 5'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://journals.aps.org/prresearch/pdf/10.1103/PhysRevResearch.5.043158
oa: '1'
project:
- _id: '53'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '174'
name: 'TRR 142 - C10: TRR 142 - Erzeugung und Charakterisierung von Quantenlicht
in nichtlinearen Systemen: Eine theoretische Analyse (C10*)'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Phase sensitivity of spatially broadband high-gain SU(1,1) interferometers
type: journal_article
user_id: '55907'
volume: 5
year: '2023'
...
---
_id: '61252'
abstract:
- lang: eng
text: AbstractThe biexciton‐exciton emission cascade
commonly used in quantum‐dot systems to generate polarization entanglement yields
photons with intrinsically limited indistinguishability. In the present work,
it focuses on the generation of pairs of photons with high degrees of polarization
entanglement and simultaneously high indistinguishability. It achieves this goal
by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates
that a suitably tailored circular Bragg reflector fulfills the requirements of
sufficient selective Purcell enhancement of biexciton emission paired with spectrally
broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical
study combines (i) the optimization of realistic photonic structures solving Maxwell's
equations from which model parameters are extracted as input for (ii) microscopic
simulations of quantum‐dot cavity excitation dynamics with full access to photon
properties. It reports non‐trivial dependencies on system parameters and use the
predictive power of the combined theoretical approach to determine the optimal
range of Purcell enhancement that maximizes indistinguishability and entanglement
to near unity values, here specifically for the telecom C‐band at 1550 nm.
article_number: '2300142'
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Klaus D.
full_name: Jöns, Klaus D.
id: '85353'
last_name: Jöns
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Siebert D, Jöns KD, Förstner J, Schumacher S. On‐Demand Indistinguishable
and Entangled Photons Using Tailored Cavity Designs. Advanced Quantum Technologies.
2023;7(1). doi:10.1002/qute.202300142
apa: Bauch, D., Siebert, D., Jöns, K. D., Förstner, J., & Schumacher, S. (2023).
On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.
Advanced Quantum Technologies, 7(1), Article 2300142. https://doi.org/10.1002/qute.202300142
bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, volume={7},
DOI={10.1002/qute.202300142},
number={12300142}, journal={Advanced Quantum Technologies}, publisher={Wiley},
author={Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens
and Schumacher, Stefan}, year={2023} }'
chicago: Bauch, David, Dustin Siebert, Klaus D. Jöns, Jens Förstner, and Stefan
Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored
Cavity Designs.” Advanced Quantum Technologies 7, no. 1 (2023). https://doi.org/10.1002/qute.202300142.
ieee: 'D. Bauch, D. Siebert, K. D. Jöns, J. Förstner, and S. Schumacher, “On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” Advanced
Quantum Technologies, vol. 7, no. 1, Art. no. 2300142, 2023, doi: 10.1002/qute.202300142.'
mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using
Tailored Cavity Designs.” Advanced Quantum Technologies, vol. 7, no. 1,
2300142, Wiley, 2023, doi:10.1002/qute.202300142.
short: D. Bauch, D. Siebert, K.D. Jöns, J. Förstner, S. Schumacher, Advanced Quantum
Technologies 7 (2023).
date_created: 2025-09-12T11:11:56Z
date_updated: 2025-09-12T11:16:12Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '642'
- _id: '61'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '429'
- _id: '27'
- _id: '623'
doi: 10.1002/qute.202300142
intvolume: ' 7'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '55'
name: TRR 142 - Project Area B
- _id: '56'
name: TRR 142 - Project Area C
- _id: '167'
name: 'TRR 142; TP B06: Ultraschnelle kohärente opto-elektronische Kontrolle eines
photonischen Quantensystems'
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: Advanced Quantum Technologies
publication_identifier:
issn:
- 2511-9044
- 2511-9044
publication_status: published
publisher: Wiley
status: public
title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs
type: journal_article
user_id: '16199'
volume: 7
year: '2023'
...
---
_id: '61362'
abstract:
- lang: eng
text: We study the interaction of gray tracking and DC ionic conductivity
in Potassium Titanyl Phosphate (KTiOPO4, KTP) and present
a novel way to reduce conductivity via a potassium nitrate treatment improving
the device quality.
author:
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Adriana
full_name: Bocchini, Adriana
id: '58349'
last_name: Bocchini
orcid: 0000-0002-2134-3075
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- 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: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: 'Eigner C, Padberg L, Quiring V, et al. Potassium Titanyl Phosphate Material
Engineering Boosting Integrated Optical Source Performance. In: CLEO 2023.
Optica Publishing Group; 2023. doi:10.1364/cleo_at.2023.jw2a.57'
apa: Eigner, C., Padberg, L., Quiring, V., Bocchini, A., Santandrea, M., Gerstmann,
U., Schmidt, W. G., & Silberhorn, C. (2023). Potassium Titanyl Phosphate Material
Engineering Boosting Integrated Optical Source Performance. CLEO 2023.
https://doi.org/10.1364/cleo_at.2023.jw2a.57
bibtex: '@inproceedings{Eigner_Padberg_Quiring_Bocchini_Santandrea_Gerstmann_Schmidt_Silberhorn_2023,
title={Potassium Titanyl Phosphate Material Engineering Boosting Integrated Optical
Source Performance}, DOI={10.1364/cleo_at.2023.jw2a.57},
booktitle={CLEO 2023}, publisher={Optica Publishing Group}, author={Eigner, Christof
and Padberg, Laura and Quiring, Viktor and Bocchini, Adriana and Santandrea, Matteo
and Gerstmann, Uwe and Schmidt, Wolf Gero and Silberhorn, Christine}, year={2023}
}'
chicago: Eigner, Christof, Laura Padberg, Viktor Quiring, Adriana Bocchini, Matteo
Santandrea, Uwe Gerstmann, Wolf Gero Schmidt, and Christine Silberhorn. “Potassium
Titanyl Phosphate Material Engineering Boosting Integrated Optical Source Performance.”
In CLEO 2023. Optica Publishing Group, 2023. https://doi.org/10.1364/cleo_at.2023.jw2a.57.
ieee: 'C. Eigner et al., “Potassium Titanyl Phosphate Material Engineering
Boosting Integrated Optical Source Performance,” 2023, doi: 10.1364/cleo_at.2023.jw2a.57.'
mla: Eigner, Christof, et al. “Potassium Titanyl Phosphate Material Engineering
Boosting Integrated Optical Source Performance.” CLEO 2023, Optica Publishing
Group, 2023, doi:10.1364/cleo_at.2023.jw2a.57.
short: 'C. Eigner, L. Padberg, V. Quiring, A. Bocchini, M. Santandrea, U. Gerstmann,
W.G. Schmidt, C. Silberhorn, in: CLEO 2023, Optica Publishing Group, 2023.'
date_created: 2025-09-18T12:06:19Z
date_updated: 2025-09-18T12:08:56Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '790'
- _id: '288'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '27'
doi: 10.1364/cleo_at.2023.jw2a.57
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '54'
name: TRR 142 - Project Area A
- _id: '55'
name: TRR 142 - Project Area B
- _id: '168'
name: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat
(B07*)
- _id: '166'
name: TRR 142 - Subproject A11
publication: CLEO 2023
publication_status: published
publisher: Optica Publishing Group
status: public
title: Potassium Titanyl Phosphate Material Engineering Boosting Integrated Optical
Source Performance
type: conference
user_id: '16199'
year: '2023'
...
---
_id: '36416'
author:
- first_name: Jianbo
full_name: De, Jianbo
last_name: De
- first_name: Xuekai
full_name: Ma, Xuekai
id: '59416'
last_name: Ma
- first_name: Fan
full_name: Yin, Fan
last_name: Yin
- first_name: Jiahuan
full_name: Ren, Jiahuan
last_name: Ren
- first_name: Jiannian
full_name: Yao, Jiannian
last_name: Yao
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Qing
full_name: Liao, Qing
last_name: Liao
- first_name: Hongbing
full_name: Fu, Hongbing
last_name: Fu
- first_name: Guillaume
full_name: Malpuech, Guillaume
last_name: Malpuech
- first_name: Dmitry
full_name: Solnyshkov, Dmitry
last_name: Solnyshkov
citation:
ama: De J, Ma X, Yin F, et al. Room-Temperature Electrical Field-Enhanced Ultrafast
Switch in Organic Microcavity Polariton Condensates. Journal of the American
Chemical Society (JACS). 2023;145(3):1557-1563. doi:10.1021/jacs.2c07557
apa: De, J., Ma, X., Yin, F., Ren, J., Yao, J., Schumacher, S., Liao, Q., Fu, H.,
Malpuech, G., & Solnyshkov, D. (2023). Room-Temperature Electrical Field-Enhanced
Ultrafast Switch in Organic Microcavity Polariton Condensates. Journal of the
American Chemical Society (JACS), 145(3), 1557–1563. https://doi.org/10.1021/jacs.2c07557
bibtex: '@article{De_Ma_Yin_Ren_Yao_Schumacher_Liao_Fu_Malpuech_Solnyshkov_2023,
title={Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic
Microcavity Polariton Condensates}, volume={145}, DOI={10.1021/jacs.2c07557},
number={3}, journal={Journal of the American Chemical Society (JACS)}, publisher={American
Chemical Society (ACS)}, author={De, Jianbo and Ma, Xuekai and Yin, Fan and Ren,
Jiahuan and Yao, Jiannian and Schumacher, Stefan and Liao, Qing and Fu, Hongbing
and Malpuech, Guillaume and Solnyshkov, Dmitry}, year={2023}, pages={1557–1563}
}'
chicago: 'De, Jianbo, Xuekai Ma, Fan Yin, Jiahuan Ren, Jiannian Yao, Stefan Schumacher,
Qing Liao, Hongbing Fu, Guillaume Malpuech, and Dmitry Solnyshkov. “Room-Temperature
Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity Polariton Condensates.”
Journal of the American Chemical Society (JACS) 145, no. 3 (2023): 1557–63.
https://doi.org/10.1021/jacs.2c07557.'
ieee: 'J. De et al., “Room-Temperature Electrical Field-Enhanced Ultrafast
Switch in Organic Microcavity Polariton Condensates,” Journal of the American
Chemical Society (JACS), vol. 145, no. 3, pp. 1557–1563, 2023, doi: 10.1021/jacs.2c07557.'
mla: De, Jianbo, et al. “Room-Temperature Electrical Field-Enhanced Ultrafast Switch
in Organic Microcavity Polariton Condensates.” Journal of the American Chemical
Society (JACS), vol. 145, no. 3, American Chemical Society (ACS), 2023, pp.
1557–63, doi:10.1021/jacs.2c07557.
short: J. De, X. Ma, F. Yin, J. Ren, J. Yao, S. Schumacher, Q. Liao, H. Fu, G. Malpuech,
D. Solnyshkov, Journal of the American Chemical Society (JACS) 145 (2023) 1557–1563.
date_created: 2023-01-12T12:07:52Z
date_updated: 2025-12-05T13:50:32Z
department:
- _id: '15'
- _id: '170'
- _id: '705'
- _id: '297'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1021/jacs.2c07557
intvolume: ' 145'
issue: '3'
keyword:
- Colloid and Surface Chemistry
- Biochemistry
- General Chemistry
- Catalysis
language:
- iso: eng
page: 1557-1563
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: Journal of the American Chemical Society (JACS)
publication_identifier:
issn:
- 0002-7863
- 1520-5126
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Room-Temperature Electrical Field-Enhanced Ultrafast Switch in Organic Microcavity
Polariton Condensates
type: journal_article
user_id: '16199'
volume: 145
year: '2023'
...
---
_id: '29716'
article_number: '4867'
author:
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Christian
full_name: Golla, Christian
last_name: Golla
- first_name: Nils
full_name: Weber, Nils
last_name: Weber
- first_name: Peter
full_name: Mackwitz, Peter
last_name: Mackwitz
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Widhalm A, Golla C, Weber N, Mackwitz P, Zrenner A, Meier C. Electric-field-induced
second harmonic generation in silicon dioxide. Optics Express. 2022;30(4).
doi:10.1364/oe.443489
apa: Widhalm, A., Golla, C., Weber, N., Mackwitz, P., Zrenner, A., & Meier,
C. (2022). Electric-field-induced second harmonic generation in silicon dioxide.
Optics Express, 30(4), Article 4867. https://doi.org/10.1364/oe.443489
bibtex: '@article{Widhalm_Golla_Weber_Mackwitz_Zrenner_Meier_2022, title={Electric-field-induced
second harmonic generation in silicon dioxide}, volume={30}, DOI={10.1364/oe.443489},
number={44867}, journal={Optics Express}, publisher={The Optical Society}, author={Widhalm,
Alex and Golla, Christian and Weber, Nils and Mackwitz, Peter and Zrenner, Artur
and Meier, Cedrik}, year={2022} }'
chicago: Widhalm, Alex, Christian Golla, Nils Weber, Peter Mackwitz, Artur Zrenner,
and Cedrik Meier. “Electric-Field-Induced Second Harmonic Generation in Silicon
Dioxide.” Optics Express 30, no. 4 (2022). https://doi.org/10.1364/oe.443489.
ieee: 'A. Widhalm, C. Golla, N. Weber, P. Mackwitz, A. Zrenner, and C. Meier, “Electric-field-induced
second harmonic generation in silicon dioxide,” Optics Express, vol. 30,
no. 4, Art. no. 4867, 2022, doi: 10.1364/oe.443489.'
mla: Widhalm, Alex, et al. “Electric-Field-Induced Second Harmonic Generation in
Silicon Dioxide.” Optics Express, vol. 30, no. 4, 4867, The Optical Society,
2022, doi:10.1364/oe.443489.
short: A. Widhalm, C. Golla, N. Weber, P. Mackwitz, A. Zrenner, C. Meier, Optics
Express 30 (2022).
date_created: 2022-02-01T15:36:34Z
date_updated: 2022-02-07T14:20:13Z
department:
- _id: '15'
doi: 10.1364/oe.443489
intvolume: ' 30'
issue: '4'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '75'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: The Optical Society
status: public
title: Electric-field-induced second harmonic generation in silicon dioxide
type: journal_article
user_id: '20798'
volume: 30
year: '2022'
...
---
_id: '30387'
abstract:
- lang: eng
text: Resonant evanescent coupling can be utilized to selectively excite orbital
angular momentum (OAM) modes of high angular order supported by a thin circular
dielectric rod. Our 2.5-D hybrid-analytical coupled mode model combines the vectorial
fields associated with the fundamental TE- and TM-modes of a standard silicon
photonics slab waveguide, propagating at oblique angles with respect to the rod
axis, and the hybrid modes supported by the rod. One observes an efficient resonant
interaction in cases where the common axial wavenumber of the waves in the slab
matches the propagation constant of one or more modes of the rod. For certain
modes of high angular order, the incident wave is able to transfer its directionality
to the field in the fiber, exciting effectively only one of a pair of degenerate
OAM modes
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 OAM modes
in a high-contrast circular step-index fiber. In: Andrews DL, Galvez EJ, Rubinsztein-Dunlop
H, eds. Complex Light and Optical Forces XVI. SPIE; 2022:120170F. doi:10.1117/12.2612179'
apa: Hammer, M., Ebers, L., & Förstner, J. (2022). Resonant evanescent excitation
of OAM modes in a high-contrast circular step-index fiber. In D. L. Andrews, E.
J. Galvez, & H. Rubinsztein-Dunlop (Eds.), Complex Light and Optical Forces
XVI (p. 120170F). SPIE. https://doi.org/10.1117/12.2612179
bibtex: '@inproceedings{Hammer_Ebers_Förstner_2022, title={Resonant evanescent excitation
of OAM modes in a high-contrast circular step-index fiber}, DOI={10.1117/12.2612179},
booktitle={Complex Light and Optical Forces XVI}, publisher={SPIE}, author={Hammer,
Manfred and Ebers, Lena and Förstner, Jens}, editor={Andrews, David L. and Galvez,
Enrique J. and Rubinsztein-Dunlop, Halina}, year={2022}, pages={120170F} }'
chicago: Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation
of OAM Modes in a High-Contrast Circular Step-Index Fiber.” In Complex Light
and Optical Forces XVI, edited by David L. Andrews, Enrique J. Galvez, and
Halina Rubinsztein-Dunlop, 120170F. SPIE, 2022. https://doi.org/10.1117/12.2612179.
ieee: 'M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of
OAM modes in a high-contrast circular step-index fiber,” in Complex Light and
Optical Forces XVI, 2022, p. 120170F, doi: 10.1117/12.2612179.'
mla: Hammer, Manfred, et al. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast
Circular Step-Index Fiber.” Complex Light and Optical Forces XVI, edited
by David L. Andrews et al., SPIE, 2022, p. 120170F, doi:10.1117/12.2612179.
short: 'M. Hammer, L. Ebers, J. Förstner, in: D.L. Andrews, E.J. Galvez, H. Rubinsztein-Dunlop
(Eds.), Complex Light and Optical Forces XVI, SPIE, 2022, p. 120170F.'
date_created: 2022-03-21T10:12:58Z
date_updated: 2022-03-22T18:04:20Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1117/12.2612179
editor:
- first_name: David L.
full_name: Andrews, David L.
last_name: Andrews
- first_name: Enrique J.
full_name: Galvez, Enrique J.
last_name: Galvez
- first_name: Halina
full_name: Rubinsztein-Dunlop, Halina
last_name: Rubinsztein-Dunlop
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2022-03-22T18:03:50Z
date_updated: 2022-03-22T18:03:50Z
file_id: '30444'
file_name: 2022-03 Hammer - SPIE Photonics West 2022 - Resonant evanescent excitation
of OAM modes in a high-contrast circular (official version).pdf
file_size: 2015899
relation: main_file
file_date_updated: 2022-03-22T18:03:50Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: 120170F
project:
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '75'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
publication: Complex Light and Optical Forces XVI
publication_status: published
publisher: SPIE
status: public
title: Resonant evanescent excitation of OAM modes in a high-contrast circular step-index
fiber
type: conference
user_id: '158'
year: '2022'
...
---
_id: '29902'
article_number: '2104508'
article_type: original
author:
- first_name: Bernhard
full_name: Reineke Matsudo, Bernhard
last_name: Reineke Matsudo
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Luca
full_name: Carletti, Luca
last_name: Carletti
- first_name: Xue
full_name: Zhang, Xue
last_name: Zhang
- first_name: Wenlong
full_name: Gao, Wenlong
last_name: Gao
- first_name: Costantino
full_name: Angelis, Costantino
last_name: Angelis
- 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: Reineke Matsudo B, Sain B, Carletti L, et al. Efficient Frequency Conversion
with Geometric Phase Control in Optical Metasurfaces. Advanced Science.
2022;9(12). doi:10.1002/advs.202104508
apa: Reineke Matsudo, B., Sain, B., Carletti, L., Zhang, X., Gao, W., Angelis, C.,
Huang, L., & Zentgraf, T. (2022). Efficient Frequency Conversion with Geometric
Phase Control in Optical Metasurfaces. Advanced Science, 9(12),
Article 2104508. https://doi.org/10.1002/advs.202104508
bibtex: '@article{Reineke Matsudo_Sain_Carletti_Zhang_Gao_Angelis_Huang_Zentgraf_2022,
title={Efficient Frequency Conversion with Geometric Phase Control in Optical
Metasurfaces}, volume={9}, DOI={10.1002/advs.202104508},
number={122104508}, journal={Advanced Science}, publisher={Wiley}, author={Reineke
Matsudo, Bernhard and Sain, Basudeb and Carletti, Luca and Zhang, Xue and Gao,
Wenlong and Angelis, Costantino and Huang, Lingling and Zentgraf, Thomas}, year={2022}
}'
chicago: Reineke Matsudo, Bernhard, Basudeb Sain, Luca Carletti, Xue Zhang, Wenlong
Gao, Costantino Angelis, Lingling Huang, and Thomas Zentgraf. “Efficient Frequency
Conversion with Geometric Phase Control in Optical Metasurfaces.” Advanced
Science 9, no. 12 (2022). https://doi.org/10.1002/advs.202104508.
ieee: 'B. Reineke Matsudo et al., “Efficient Frequency Conversion with Geometric
Phase Control in Optical Metasurfaces,” Advanced Science, vol. 9, no. 12,
Art. no. 2104508, 2022, doi: 10.1002/advs.202104508.'
mla: Reineke Matsudo, Bernhard, et al. “Efficient Frequency Conversion with Geometric
Phase Control in Optical Metasurfaces.” Advanced Science, vol. 9, no. 12,
2104508, Wiley, 2022, doi:10.1002/advs.202104508.
short: B. Reineke Matsudo, B. Sain, L. Carletti, X. Zhang, W. Gao, C. Angelis, L.
Huang, T. Zentgraf, Advanced Science 9 (2022).
date_created: 2022-02-21T08:09:02Z
date_updated: 2022-04-25T13:04:44Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1002/advs.202104508
file:
- access_level: closed
content_type: application/pdf
creator: zentgraf
date_created: 2022-03-03T07:23:15Z
date_updated: 2022-03-03T07:23:15Z
file_id: '30196'
file_name: 2022_ACSPhotonics_NonlinearChiral_Arxiv.pdf
file_size: 1001422
relation: main_file
success: 1
file_date_updated: 2022-03-03T07:23:15Z
has_accepted_license: '1'
intvolume: ' 9'
issue: '12'
keyword:
- General Physics and Astronomy
- General Engineering
- Biochemistry
- Genetics and Molecular Biology (miscellaneous)
- General Materials Science
- General Chemical Engineering
- Medicine (miscellaneous)
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/advs.202104508
oa: '1'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '75'
name: 'TRR 142 - C5: TRR 142 - Subproject C5'
publication: Advanced Science
publication_identifier:
issn:
- 2198-3844
- 2198-3844
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces
type: journal_article
user_id: '30525'
volume: 9
year: '2022'
...
---
_id: '54849'
abstract:
- lang: eng
text: The third‐order susceptibility of lithium
niobate (LiNbO3) is calculated within a Berry‐phase formulation
of the dynamical polarization based on the electronic structure obtained within
density‐functional theory (DFT). Maximum values of the order of m V are calculated
for photon energies between 1.2 and 2 eV, i.e., in the lower half of the optical
bandgap of lithium niobate. Both free and bound electron (bi)polarons are found
to lead to a remarkable enhancement of the third‐order susceptibility for photon
energies below 1 eV.
author:
- first_name: Agnieszka L.
full_name: Kozub, Agnieszka L.
last_name: Kozub
- 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: 'Kozub AL, Gerstmann U, Schmidt WG. Third‐Order Susceptibility of Lithium Niobate:
Influence of Polarons and Bipolarons. physica status solidi (b). 2022;260(2).
doi:10.1002/pssb.202200453'
apa: 'Kozub, A. L., Gerstmann, U., & Schmidt, W. G. (2022). Third‐Order Susceptibility
of Lithium Niobate: Influence of Polarons and Bipolarons. Physica Status Solidi
(b), 260(2). https://doi.org/10.1002/pssb.202200453'
bibtex: '@article{Kozub_Gerstmann_Schmidt_2022, title={Third‐Order Susceptibility
of Lithium Niobate: Influence of Polarons and Bipolarons}, volume={260}, DOI={10.1002/pssb.202200453}, number={2},
journal={physica status solidi (b)}, publisher={Wiley}, author={Kozub, Agnieszka
L. and Gerstmann, Uwe and Schmidt, Wolf Gero}, year={2022} }'
chicago: 'Kozub, Agnieszka L., Uwe Gerstmann, and Wolf Gero Schmidt. “Third‐Order
Susceptibility of Lithium Niobate: Influence of Polarons and Bipolarons.” Physica
Status Solidi (b) 260, no. 2 (2022). https://doi.org/10.1002/pssb.202200453.'
ieee: 'A. L. Kozub, U. Gerstmann, and W. G. Schmidt, “Third‐Order Susceptibility
of Lithium Niobate: Influence of Polarons and Bipolarons,” physica status solidi
(b), vol. 260, no. 2, 2022, doi: 10.1002/pssb.202200453.'
mla: 'Kozub, Agnieszka L., et al. “Third‐Order Susceptibility of Lithium Niobate:
Influence of Polarons and Bipolarons.” Physica Status Solidi (b), vol.
260, no. 2, Wiley, 2022, doi:10.1002/pssb.202200453.'
short: A.L. Kozub, U. Gerstmann, W.G. Schmidt, Physica Status Solidi (b) 260 (2022).
date_created: 2024-06-24T05:59:11Z
date_updated: 2024-06-24T06:02:58Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '790'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.1002/pssb.202200453
intvolume: ' 260'
issue: '2'
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: physica status solidi (b)
publication_identifier:
issn:
- 0370-1972
- 1521-3951
publication_status: published
publisher: Wiley
status: public
title: 'Third‐Order Susceptibility of Lithium Niobate: Influence of Polarons and Bipolarons'
type: journal_article
user_id: '16199'
volume: 260
year: '2022'
...
---
_id: '28413'
abstract:
- lang: eng
text: Optical traveling wave antennas offer unique opportunities to control and
selectively guide light into a specific direction, which renders them excellent
candidates for optical communication and sensing. These applications require state-of-the-art
engineering to reach optimized functionalities such as high directivity and radiation
efficiency, low sidelobe levels, broadband and tunable capabilities, and compact
design. In this work, we report on the numerical optimization of the directivity
of optical traveling wave antennas made from low-loss dielectric materials using
full-wave numerical simulations in conjunction with the particle swarm optimization
algorithm. The antennas are composed of a reflector and a director deposited on
a glass substrate, and an emitter placed in the feed gap between them serves as
an internal source of excitation. In particular, we analyze antennas with rectangular-
and horn-shaped directors made of either hafnium dioxide or silicon. The optimized
antennas produce highly directional emissions due to the presence of two dominant
guided TE modes in the director in addition to leaky modes. These guided modes
dominate the far-field emission pattern and govern the direction of the main lobe
emission, which predominately originates from the end facet of the director. Our
work also provides a comprehensive analysis of the modes, radiation patterns,
parametric influences, and bandwidths of the antennas, which highlights their
robust nature.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Till
full_name: Leuteritz, Till
last_name: Leuteritz
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Farheen H, Leuteritz T, Linden S, Myroshnychenko V, Förstner J. Optimization
of optical waveguide antennas for directive emission of light. Journal of the
Optical Society of America B. 2022;39(1):83. doi:10.1364/josab.438514
apa: Farheen, H., Leuteritz, T., Linden, S., Myroshnychenko, V., & Förstner,
J. (2022). Optimization of optical waveguide antennas for directive emission of
light. Journal of the Optical Society of America B, 39(1), 83. https://doi.org/10.1364/josab.438514
bibtex: '@article{Farheen_Leuteritz_Linden_Myroshnychenko_Förstner_2022, title={Optimization
of optical waveguide antennas for directive emission of light}, volume={39}, DOI={10.1364/josab.438514}, number={1},
journal={Journal of the Optical Society of America B}, author={Farheen, Henna
and Leuteritz, Till and Linden, Stefan and Myroshnychenko, Viktor and Förstner,
Jens}, year={2022}, pages={83} }'
chicago: 'Farheen, Henna, Till Leuteritz, Stefan Linden, Viktor Myroshnychenko,
and Jens Förstner. “Optimization of Optical Waveguide Antennas for Directive Emission
of Light.” Journal of the Optical Society of America B 39, no. 1 (2022):
83. https://doi.org/10.1364/josab.438514.'
ieee: 'H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, and J. Förstner,
“Optimization of optical waveguide antennas for directive emission of light,”
Journal of the Optical Society of America B, vol. 39, no. 1, p. 83, 2022,
doi: 10.1364/josab.438514.'
mla: Farheen, Henna, et al. “Optimization of Optical Waveguide Antennas for Directive
Emission of Light.” Journal of the Optical Society of America B, vol. 39,
no. 1, 2022, p. 83, doi:10.1364/josab.438514.
short: H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, J. Förstner, Journal
of the Optical Society of America B 39 (2022) 83.
date_created: 2021-12-08T07:14:39Z
date_updated: 2024-07-22T07:45:12Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/josab.438514
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2021-12-08T08:26:57Z
date_updated: 2021-12-08T08:26:57Z
embargo: 2022-12-08
embargo_to: open_access
file_id: '28417'
file_name: 2021-12 Farheen - JOSA B - Optimization of optical nanoantennas.pdf
file_size: 14029741
relation: main_file
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2021-12-08T08:29:49Z
date_updated: 2021-12-08T08:29:49Z
file_id: '28418'
file_name: 2021-12 Farheen - JOSA B - Optimization of optical nanoantennas SUPPLEMENTARY
MATERIAL.pdf
file_size: 655495
relation: supplementary_material
file_date_updated: 2021-12-08T08:29:49Z
has_accepted_license: '1'
intvolume: ' 39'
issue: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
oa: '1'
page: '83'
project:
- _id: '53'
grant_number: '231447078'
name: TRR 142
- _id: '56'
name: TRR 142 - Project Area C
- _id: '75'
grant_number: '231447078'
name: TRR 142 - Subproject C5
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
status: public
title: Optimization of optical waveguide antennas for directive emission of light
type: journal_article
user_id: '158'
volume: 39
year: '2022'
...
---
_id: '37319'
article_number: '205408'
author:
- first_name: S.
full_name: Grisard, S.
last_name: Grisard
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: A. V.
full_name: Trifonov, A. V.
last_name: Trifonov
- first_name: R.
full_name: Reichhardt, R.
last_name: Reichhardt
- first_name: D. E.
full_name: Reiter, D. E.
last_name: Reiter
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: C.
full_name: Schneider, C.
last_name: Schneider
- first_name: M.
full_name: Kamp, M.
last_name: Kamp
- first_name: S.
full_name: Höfling, S.
last_name: Höfling
- first_name: M.
full_name: Bayer, M.
last_name: Bayer
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: I. A.
full_name: Akimov, I. A.
last_name: Akimov
citation:
ama: Grisard S, Rose H, Trifonov AV, et al. Multiple Rabi rotations of trions in
InGaAs quantum dots observed by photon echo spectroscopy with spatially shaped
laser pulses. Physical Review B. 2022;106(20). doi:10.1103/physrevb.106.205408
apa: Grisard, S., Rose, H., Trifonov, A. V., Reichhardt, R., Reiter, D. E., Reichelt,
M., Schneider, C., Kamp, M., Höfling, S., Bayer, M., Meier, T., & Akimov,
I. A. (2022). Multiple Rabi rotations of trions in InGaAs quantum dots observed
by photon echo spectroscopy with spatially shaped laser pulses. Physical Review
B, 106(20), Article 205408. https://doi.org/10.1103/physrevb.106.205408
bibtex: '@article{Grisard_Rose_Trifonov_Reichhardt_Reiter_Reichelt_Schneider_Kamp_Höfling_Bayer_et
al._2022, title={Multiple Rabi rotations of trions in InGaAs quantum dots observed
by photon echo spectroscopy with spatially shaped laser pulses}, volume={106},
DOI={10.1103/physrevb.106.205408},
number={20205408}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Grisard, S. and Rose, Hendrik and Trifonov, A. V. and Reichhardt,
R. and Reiter, D. E. and Reichelt, Matthias and Schneider, C. and Kamp, M. and
Höfling, S. and Bayer, M. and et al.}, year={2022} }'
chicago: Grisard, S., Hendrik Rose, A. V. Trifonov, R. Reichhardt, D. E. Reiter,
Matthias Reichelt, C. Schneider, et al. “Multiple Rabi Rotations of Trions in
InGaAs Quantum Dots Observed by Photon Echo Spectroscopy with Spatially Shaped
Laser Pulses.” Physical Review B 106, no. 20 (2022). https://doi.org/10.1103/physrevb.106.205408.
ieee: 'S. Grisard et al., “Multiple Rabi rotations of trions in InGaAs quantum
dots observed by photon echo spectroscopy with spatially shaped laser pulses,”
Physical Review B, vol. 106, no. 20, Art. no. 205408, 2022, doi: 10.1103/physrevb.106.205408.'
mla: Grisard, S., et al. “Multiple Rabi Rotations of Trions in InGaAs Quantum Dots
Observed by Photon Echo Spectroscopy with Spatially Shaped Laser Pulses.” Physical
Review B, vol. 106, no. 20, 205408, American Physical Society (APS), 2022,
doi:10.1103/physrevb.106.205408.
short: S. Grisard, H. Rose, A.V. Trifonov, R. Reichhardt, D.E. Reiter, M. Reichelt,
C. Schneider, M. Kamp, S. Höfling, M. Bayer, T. Meier, I.A. Akimov, Physical Review
B 106 (2022).
date_created: 2023-01-18T10:58:12Z
date_updated: 2023-04-20T14:53:19Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '623'
- _id: '35'
- _id: '429'
doi: 10.1103/physrevb.106.205408
intvolume: ' 106'
issue: '20'
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Multiple Rabi rotations of trions in InGaAs quantum dots observed by photon
echo spectroscopy with spatially shaped laser pulses
type: journal_article
user_id: '16199'
volume: 106
year: '2022'
...
---
_id: '37329'
author:
- first_name: Alexander
full_name: Trautmann, Alexander
id: '38163'
last_name: Trautmann
- first_name: Ruixin
full_name: Zuo, Ruixin
last_name: Zuo
- 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: Le Huu
full_name: Thong, Le Huu
last_name: Thong
- first_name: Cong
full_name: Ngo, Cong
last_name: Ngo
- first_name: Johannes
full_name: Steiner, Johannes
last_name: Steiner
- first_name: Marcelo
full_name: Ciappina, Marcelo
last_name: Ciappina
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Xiaohong
full_name: Song, Xiaohong
last_name: Song
- first_name: Weifeng
full_name: Yang, Weifeng
last_name: Yang
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Trautmann A, Zuo R, Wang G, et al. Microscopic simulations of high harmonic
generation from semiconductors. In: Betz M, Elezzabi AY, eds. Ultrafast Phenomena
and Nanophotonics XXVI. Vol 11999. SPIE Proceedings. ; 2022. doi:10.1117/12.2607447'
apa: Trautmann, A., Zuo, R., Wang, G., Hannes, W.-R., Yang, S., Thong, L. H., Ngo,
C., Steiner, J., Ciappina, M., Reichelt, M., Duc, H. T., Song, X., Yang, W., &
Meier, T. (2022). Microscopic simulations of high harmonic generation from semiconductors.
In M. Betz & A. Y. Elezzabi (Eds.), Ultrafast Phenomena and Nanophotonics
XXVI (Vol. 11999). https://doi.org/10.1117/12.2607447
bibtex: '@inproceedings{Trautmann_Zuo_Wang_Hannes_Yang_Thong_Ngo_Steiner_Ciappina_Reichelt_et
al._2022, series={SPIE Proceedings}, title={Microscopic simulations of high harmonic
generation from semiconductors}, volume={11999}, DOI={10.1117/12.2607447},
booktitle={Ultrafast Phenomena and Nanophotonics XXVI}, author={Trautmann, Alexander
and Zuo, Ruixin and Wang, Guifang and Hannes, Wolf-Rüdiger and Yang, Shidong and
Thong, Le Huu and Ngo, Cong and Steiner, Johannes and Ciappina, Marcelo and Reichelt,
Matthias and et al.}, editor={Betz, Markus and Elezzabi, Abdulhakem Y.}, year={2022},
collection={SPIE Proceedings} }'
chicago: Trautmann, Alexander, Ruixin Zuo, Guifang Wang, Wolf-Rüdiger Hannes, Shidong
Yang, Le Huu Thong, Cong Ngo, et al. “Microscopic Simulations of High Harmonic
Generation from Semiconductors.” In Ultrafast Phenomena and Nanophotonics XXVI,
edited by Markus Betz and Abdulhakem Y. Elezzabi, Vol. 11999. SPIE Proceedings,
2022. https://doi.org/10.1117/12.2607447.
ieee: 'A. Trautmann et al., “Microscopic simulations of high harmonic generation
from semiconductors,” in Ultrafast Phenomena and Nanophotonics XXVI, 2022,
vol. 11999, doi: 10.1117/12.2607447.'
mla: Trautmann, Alexander, et al. “Microscopic Simulations of High Harmonic Generation
from Semiconductors.” Ultrafast Phenomena and Nanophotonics XXVI, edited
by Markus Betz and Abdulhakem Y. Elezzabi, vol. 11999, 2022, doi:10.1117/12.2607447.
short: 'A. Trautmann, R. Zuo, G. Wang, W.-R. Hannes, S. Yang, L.H. Thong, C. Ngo,
J. Steiner, M. Ciappina, M. Reichelt, H.T. Duc, X. Song, W. Yang, T. Meier, in:
M. Betz, A.Y. Elezzabi (Eds.), Ultrafast Phenomena and Nanophotonics XXVI, 2022.'
date_created: 2023-01-18T11:22:45Z
date_updated: 2023-04-20T14:52:24Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1117/12.2607447
editor:
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 11999'
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 Phenomena and Nanophotonics XXVI
publication_status: published
series_title: SPIE Proceedings
status: public
title: Microscopic simulations of high harmonic generation from semiconductors
type: conference
user_id: '16199'
volume: 11999
year: '2022'
...
---
_id: '37323'
article_number: '115307'
author:
- first_name: J.
full_name: Paul, J.
last_name: Paul
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: E.
full_name: Swagel, E.
last_name: Swagel
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: J. K.
full_name: Wahlstrand, J. K.
last_name: Wahlstrand
- first_name: A. D.
full_name: Bristow, A. D.
last_name: Bristow
citation:
ama: Paul J, Rose H, Swagel E, Meier T, Wahlstrand JK, Bristow AD. Coherent contributions
to population dynamics in a semiconductor microcavity. Physical Review B.
2022;105(11). doi:10.1103/physrevb.105.115307
apa: Paul, J., Rose, H., Swagel, E., Meier, T., Wahlstrand, J. K., & Bristow,
A. D. (2022). Coherent contributions to population dynamics in a semiconductor
microcavity. Physical Review B, 105(11), Article 115307. https://doi.org/10.1103/physrevb.105.115307
bibtex: '@article{Paul_Rose_Swagel_Meier_Wahlstrand_Bristow_2022, title={Coherent
contributions to population dynamics in a semiconductor microcavity}, volume={105},
DOI={10.1103/physrevb.105.115307},
number={11115307}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Paul, J. and Rose, Hendrik and Swagel, E. and Meier, Torsten and
Wahlstrand, J. K. and Bristow, A. D.}, year={2022} }'
chicago: Paul, J., Hendrik Rose, E. Swagel, Torsten Meier, J. K. Wahlstrand, and
A. D. Bristow. “Coherent Contributions to Population Dynamics in a Semiconductor
Microcavity.” Physical Review B 105, no. 11 (2022). https://doi.org/10.1103/physrevb.105.115307.
ieee: 'J. Paul, H. Rose, E. Swagel, T. Meier, J. K. Wahlstrand, and A. D. Bristow,
“Coherent contributions to population dynamics in a semiconductor microcavity,”
Physical Review B, vol. 105, no. 11, Art. no. 115307, 2022, doi: 10.1103/physrevb.105.115307.'
mla: Paul, J., et al. “Coherent Contributions to Population Dynamics in a Semiconductor
Microcavity.” Physical Review B, vol. 105, no. 11, 115307, American Physical
Society (APS), 2022, doi:10.1103/physrevb.105.115307.
short: J. Paul, H. Rose, E. Swagel, T. Meier, J.K. Wahlstrand, A.D. Bristow, Physical
Review B 105 (2022).
date_created: 2023-01-18T11:10:42Z
date_updated: 2023-04-20T14:50:24Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1103/physrevb.105.115307
intvolume: ' 105'
issue: '11'
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '59'
name: 'TRR 142 - A02: TRR 142 - Subproject A02'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Coherent contributions to population dynamics in a semiconductor microcavity
type: journal_article
user_id: '16199'
volume: 105
year: '2022'
...
---
_id: '40523'
abstract:
- lang: eng
text: AbstractTailored nanoscale quantum light
sources, matching the specific needs of use cases, are crucial building blocks
for photonic quantum technologies. Several different approaches to realize solid-state
quantum emitters with high performance have been pursued and different concepts
for energy tuning have been established. However, the properties of the emitted
photons are always defined by the individual quantum emitter and can therefore
not be controlled with full flexibility. Here we introduce an all-optical nonlinear
method to tailor and control the single photon emission. We demonstrate a laser-controlled
down-conversion process from an excited state of a semiconductor quantum three-level
system. Based on this concept, we realize energy tuning and polarization control
of the single photon emission with a control-laser field. Our results mark an
important step towards tailored single photon emission from a photonic quantum
system based on quantum optical principles.
article_number: '1387'
author:
- first_name: B.
full_name: Jonas, B.
last_name: Jonas
- first_name: Dirk Florian
full_name: Heinze, Dirk Florian
id: '10904'
last_name: Heinze
- first_name: E.
full_name: Schöll, E.
last_name: Schöll
- first_name: P.
full_name: Kallert, P.
last_name: Kallert
- first_name: T.
full_name: Langer, T.
last_name: Langer
- first_name: S.
full_name: Krehs, S.
last_name: Krehs
- first_name: A.
full_name: Widhalm, A.
last_name: Widhalm
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Jonas B, Heinze DF, Schöll E, et al. Nonlinear down-conversion in a single
quantum dot. Nature Communications. 2022;13(1). doi:10.1038/s41467-022-28993-3
apa: Jonas, B., Heinze, D. F., Schöll, E., Kallert, P., Langer, T., Krehs, S., Widhalm,
A., Jöns, K., Reuter, D., Schumacher, S., & Zrenner, A. (2022). Nonlinear
down-conversion in a single quantum dot. Nature Communications, 13(1),
Article 1387. https://doi.org/10.1038/s41467-022-28993-3
bibtex: '@article{Jonas_Heinze_Schöll_Kallert_Langer_Krehs_Widhalm_Jöns_Reuter_Schumacher_et
al._2022, title={Nonlinear down-conversion in a single quantum dot}, volume={13},
DOI={10.1038/s41467-022-28993-3},
number={11387}, journal={Nature Communications}, publisher={Springer Science and
Business Media LLC}, author={Jonas, B. and Heinze, Dirk Florian and Schöll, E.
and Kallert, P. and Langer, T. and Krehs, S. and Widhalm, A. and Jöns, Klaus and
Reuter, Dirk and Schumacher, Stefan and et al.}, year={2022} }'
chicago: Jonas, B., Dirk Florian Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs,
A. Widhalm, et al. “Nonlinear Down-Conversion in a Single Quantum Dot.” Nature
Communications 13, no. 1 (2022). https://doi.org/10.1038/s41467-022-28993-3.
ieee: 'B. Jonas et al., “Nonlinear down-conversion in a single quantum dot,”
Nature Communications, vol. 13, no. 1, Art. no. 1387, 2022, doi: 10.1038/s41467-022-28993-3.'
mla: Jonas, B., et al. “Nonlinear Down-Conversion in a Single Quantum Dot.” Nature
Communications, vol. 13, no. 1, 1387, Springer Science and Business Media
LLC, 2022, doi:10.1038/s41467-022-28993-3.
short: B. Jonas, D.F. Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs, A. Widhalm,
K. Jöns, D. Reuter, S. Schumacher, A. Zrenner, Nature Communications 13 (2022).
date_created: 2023-01-27T13:41:42Z
date_updated: 2023-04-20T15:18:31Z
department:
- _id: '15'
- _id: '297'
- _id: '230'
- _id: '429'
- _id: '27'
- _id: '623'
- _id: '170'
- _id: '35'
doi: 10.1038/s41467-022-28993-3
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: '60'
name: 'TRR 142 - A03: TRR 142 - Subproject A03'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Nonlinear down-conversion in a single quantum dot
type: journal_article
user_id: '16199'
volume: 13
year: '2022'
...
---
_id: '40431'
article_number: '045302'
author:
- first_name: Tom
full_name: Praschan, Tom
last_name: Praschan
- first_name: Dirk
full_name: Heinze, Dirk
last_name: Heinze
- first_name: Dominik
full_name: Breddermann, Dominik
last_name: Breddermann
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Andrea
full_name: Walther, Andrea
last_name: Walther
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Praschan T, Heinze D, Breddermann D, Zrenner A, Walther A, Schumacher S. Pulse
shaping for on-demand emission of single Raman photons from a quantum-dot biexciton.
Physical Review B. 2022;105(4). doi:10.1103/physrevb.105.045302
apa: Praschan, T., Heinze, D., Breddermann, D., Zrenner, A., Walther, A., &
Schumacher, S. (2022). Pulse shaping for on-demand emission of single Raman photons
from a quantum-dot biexciton. Physical Review B, 105(4), Article
045302. https://doi.org/10.1103/physrevb.105.045302
bibtex: '@article{Praschan_Heinze_Breddermann_Zrenner_Walther_Schumacher_2022, title={Pulse
shaping for on-demand emission of single Raman photons from a quantum-dot biexciton},
volume={105}, DOI={10.1103/physrevb.105.045302},
number={4045302}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Praschan, Tom and Heinze, Dirk and Breddermann, Dominik and Zrenner,
Artur and Walther, Andrea and Schumacher, Stefan}, year={2022} }'
chicago: Praschan, Tom, Dirk Heinze, Dominik Breddermann, Artur Zrenner, Andrea
Walther, and Stefan Schumacher. “Pulse Shaping for On-Demand Emission of Single
Raman Photons from a Quantum-Dot Biexciton.” Physical Review B 105, no.
4 (2022). https://doi.org/10.1103/physrevb.105.045302.
ieee: 'T. Praschan, D. Heinze, D. Breddermann, A. Zrenner, A. Walther, and S. Schumacher,
“Pulse shaping for on-demand emission of single Raman photons from a quantum-dot
biexciton,” Physical Review B, vol. 105, no. 4, Art. no. 045302, 2022,
doi: 10.1103/physrevb.105.045302.'
mla: Praschan, Tom, et al. “Pulse Shaping for On-Demand Emission of Single Raman
Photons from a Quantum-Dot Biexciton.” Physical Review B, vol. 105, no.
4, 045302, American Physical Society (APS), 2022, doi:10.1103/physrevb.105.045302.
short: T. Praschan, D. Heinze, D. Breddermann, A. Zrenner, A. Walther, S. Schumacher,
Physical Review B 105 (2022).
date_created: 2023-01-26T15:45:42Z
date_updated: 2023-04-20T15:19:24Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '290'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '35'
doi: 10.1103/physrevb.105.045302
intvolume: ' 105'
issue: '4'
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '60'
name: 'TRR 142 - A3: TRR 142 - Subproject A3'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Pulse shaping for on-demand emission of single Raman photons from a quantum-dot
biexciton
type: journal_article
user_id: '16199'
volume: 105
year: '2022'
...
---
_id: '40428'
author:
- first_name: Björn
full_name: Jonas, Björn
last_name: Jonas
- first_name: Dirk Florian
full_name: Heinze, Dirk Florian
id: '10904'
last_name: Heinze
- first_name: Eva
full_name: Schöll, Eva
last_name: Schöll
- first_name: Patricia
full_name: Kallert, Patricia
last_name: Kallert
- first_name: Timo
full_name: Langer, Timo
last_name: Langer
- first_name: Sebastian
full_name: Krehs, Sebastian
last_name: Krehs
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Jonas B, Heinze DF, Schöll E, et al. Nonlinear Down-Conversion in a Single
Quantum Dot. LibreCat University; 2022. doi:10.5281/ZENODO.6024228
apa: Jonas, B., Heinze, D. F., Schöll, E., Kallert, P., Langer, T., Krehs, S., Widhalm,
A., Jöns, K., Reuter, D., & Zrenner, A. (2022). Nonlinear down-conversion
in a single quantum dot. LibreCat University. https://doi.org/10.5281/ZENODO.6024228
bibtex: '@book{Jonas_Heinze_Schöll_Kallert_Langer_Krehs_Widhalm_Jöns_Reuter_Zrenner_2022,
title={Nonlinear down-conversion in a single quantum dot}, DOI={10.5281/ZENODO.6024228},
publisher={LibreCat University}, author={Jonas, Björn and Heinze, Dirk Florian
and Schöll, Eva and Kallert, Patricia and Langer, Timo and Krehs, Sebastian and
Widhalm, Alex and Jöns, Klaus and Reuter, Dirk and Zrenner, Artur}, year={2022}
}'
chicago: Jonas, Björn, Dirk Florian Heinze, Eva Schöll, Patricia Kallert, Timo Langer,
Sebastian Krehs, Alex Widhalm, Klaus Jöns, Dirk Reuter, and Artur Zrenner. Nonlinear
Down-Conversion in a Single Quantum Dot. LibreCat University, 2022. https://doi.org/10.5281/ZENODO.6024228.
ieee: B. Jonas et al., Nonlinear down-conversion in a single quantum dot.
LibreCat University, 2022.
mla: Jonas, Björn, et al. Nonlinear Down-Conversion in a Single Quantum Dot.
LibreCat University, 2022, doi:10.5281/ZENODO.6024228.
short: B. Jonas, D.F. Heinze, E. Schöll, P. Kallert, T. Langer, S. Krehs, A. Widhalm,
K. Jöns, D. Reuter, A. Zrenner, Nonlinear Down-Conversion in a Single Quantum
Dot, LibreCat University, 2022.
date_created: 2023-01-26T15:38:28Z
date_updated: 2023-04-20T15:18:48Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '290'
- _id: '292'
- _id: '642'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.5281/ZENODO.6024228
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '60'
name: 'TRR 142 - A3: TRR 142 - Subproject A3'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publisher: LibreCat University
status: public
title: Nonlinear down-conversion in a single quantum dot
type: research_data
user_id: '16199'
year: '2022'
...
---
_id: '37711'
abstract:
- lang: eng
text: AbstractPolarons influence decisively the
performance of lithium niobate for optical applications. In this work, the formation
of (defect) bound polarons in lithium niobate is studied by ab initio molecular
dynamics. The calculations show a broad scatter of polaron formation times. Rising
temperature increases the share of trajectories with long formation times, which
leads to an overall increase of the average formation time with temperature. However,
even at elevated temperatures, the average formation time does not exceed the
value of 100 femtoseconds, i.e., a value close to the time measured for free,
i.e., self-trapped polarons. Analyzing individual trajectories, it is found that
the time required for the structural relaxation of the polarons depends sensitively
on the excitation of the lithium niobate high-frequency phonon modes and their
phase relation.
author:
- first_name: Marvin
full_name: Krenz, Marvin
id: '52309'
last_name: Krenz
- 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: Krenz M, Gerstmann U, Schmidt WG. Bound polaron formation in lithium niobate
from ab initio molecular dynamics. Applied Physics A. 2022;128:480. doi:10.1007/s00339-022-05577-y
apa: Krenz, M., Gerstmann, U., & Schmidt, W. G. (2022). Bound polaron formation
in lithium niobate from ab initio molecular dynamics. Applied Physics A,
128, 480. https://doi.org/10.1007/s00339-022-05577-y
bibtex: '@article{Krenz_Gerstmann_Schmidt_2022, title={Bound polaron formation in
lithium niobate from ab initio molecular dynamics}, volume={128}, DOI={10.1007/s00339-022-05577-y},
journal={Applied Physics A}, publisher={Springer Science and Business Media LLC},
author={Krenz, Marvin and Gerstmann, Uwe and Schmidt, Wolf Gero}, year={2022},
pages={480} }'
chicago: 'Krenz, Marvin, Uwe Gerstmann, and Wolf Gero Schmidt. “Bound Polaron Formation
in Lithium Niobate from Ab Initio Molecular Dynamics.” Applied Physics A
128 (2022): 480. https://doi.org/10.1007/s00339-022-05577-y.'
ieee: 'M. Krenz, U. Gerstmann, and W. G. Schmidt, “Bound polaron formation in lithium
niobate from ab initio molecular dynamics,” Applied Physics A, vol. 128,
p. 480, 2022, doi: 10.1007/s00339-022-05577-y.'
mla: Krenz, Marvin, et al. “Bound Polaron Formation in Lithium Niobate from Ab Initio
Molecular Dynamics.” Applied Physics A, vol. 128, Springer Science and
Business Media LLC, 2022, p. 480, doi:10.1007/s00339-022-05577-y.
short: M. Krenz, U. Gerstmann, W.G. Schmidt, Applied Physics A 128 (2022) 480.
date_created: 2023-01-20T11:18:44Z
date_updated: 2023-04-21T11:06:37Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '790'
doi: 10.1007/s00339-022-05577-y
intvolume: ' 128'
keyword:
- General Materials Science
- General Chemistry
language:
- iso: eng
page: '480'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _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'
publication: Applied Physics A
publication_identifier:
issn:
- 0947-8396
- 1432-0630
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Bound polaron formation in lithium niobate from ab initio molecular dynamics
type: journal_article
user_id: '171'
volume: 128
year: '2022'
...
---
_id: '33484'
abstract:
- lang: eng
text: We study the DC conductivity in potassium titanyl phosphate (KTiOPO4, KTP)
and its isomorphs KTiOAsO4 (KTA) and Rb1%K99%TiOPO4 (RKTP) and introduce a method
by which to reduce the overall ionic conductivity in KTP by a potassium nitrate
treatment. Furthermore, we create so-called gray tracking in KTP and investigate
the ionic conductivity in theses areas. A local unintended reduction of the ionic
conductivity is observed in the gray-tracked regions, which also induce additional
optical absorption in the material. We show that a thermal treatment in an oxygen-rich
atmosphere removes the gray tracking and brings the ionic conductivity as well
as the optical transmission back to the original level. These studies can help
to choose the best material and treatment for specific applications.
author:
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Adriana
full_name: Bocchini, Adriana
id: '58349'
last_name: Bocchini
orcid: 0000-0002-2134-3075
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- 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: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
citation:
ama: 'Padberg L, Quiring V, Bocchini A, et al. DC Ionic Conductivity in KTP and
Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray
Tracking. Crystals. 2022;12:1359. doi:10.3390/cryst12101359'
apa: 'Padberg, L., Quiring, V., Bocchini, A., Santandrea, M., Gerstmann, U., Schmidt,
W. G., Silberhorn, C., & Eigner, C. (2022). DC Ionic Conductivity in KTP and
Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray
Tracking. Crystals, 12, 1359. https://doi.org/10.3390/cryst12101359'
bibtex: '@article{Padberg_Quiring_Bocchini_Santandrea_Gerstmann_Schmidt_Silberhorn_Eigner_2022,
title={DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for
Suppression, and Its Connection to Gray Tracking}, volume={12}, DOI={10.3390/cryst12101359},
journal={Crystals}, author={Padberg, Laura and Quiring, Viktor and Bocchini, Adriana
and Santandrea, Matteo and Gerstmann, Uwe and Schmidt, Wolf Gero and Silberhorn,
Christine and Eigner, Christof}, year={2022}, pages={1359} }'
chicago: 'Padberg, Laura, Viktor Quiring, Adriana Bocchini, Matteo Santandrea, Uwe
Gerstmann, Wolf Gero Schmidt, Christine Silberhorn, and Christof Eigner. “DC Ionic
Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and
Its Connection to Gray Tracking.” Crystals 12 (2022): 1359. https://doi.org/10.3390/cryst12101359.'
ieee: 'L. Padberg et al., “DC Ionic Conductivity in KTP and Its Isomorphs:
Properties, Methods for Suppression, and Its Connection to Gray Tracking,” Crystals,
vol. 12, p. 1359, 2022, doi: 10.3390/cryst12101359.'
mla: 'Padberg, Laura, et al. “DC Ionic Conductivity in KTP and Its Isomorphs: Properties,
Methods for Suppression, and Its Connection to Gray Tracking.” Crystals,
vol. 12, 2022, p. 1359, doi:10.3390/cryst12101359.'
short: L. Padberg, V. Quiring, A. Bocchini, M. Santandrea, U. Gerstmann, W.G. Schmidt,
C. Silberhorn, C. Eigner, Crystals 12 (2022) 1359.
date_created: 2022-09-26T13:12:48Z
date_updated: 2023-04-21T11:07:11Z
department:
- _id: '15'
- _id: '288'
- _id: '623'
- _id: '170'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '790'
doi: 10.3390/cryst12101359
intvolume: ' 12'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: '1359'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '168'
name: 'TRR 142 - B07: TRR 142 - Subproject B07'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '166'
name: 'TRR 142 - A11: TRR 142 - Subproject A11'
publication: Crystals
publication_identifier:
issn:
- 2073-4352
status: public
title: 'DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression,
and Its Connection to Gray Tracking'
type: journal_article
user_id: '171'
volume: 12
year: '2022'
...
---
_id: '30389'
abstract:
- lang: eng
text: Online solvers for a series of standard 1-D or 2-D problems in integrated
optics will be discussed. Implemented on the basis of HTML/JavaScript/SVG with
core routines compiled from well tested C++-sources, the quasi-analytical algorithms
require a computational load that can be handled easily even by current mobile
devices. So far the series covers the 1-D guided modes of dielectric multilayer
slab waveguides and the oblique plane wave reflection from these, the modes of
rectangular channel waveguides (in an approximation of effective indices), bend
modes of curved multilayer slabs, whispering-gallery resonances (“Quasi-Normal-Modes”)
supported by circular dielectric cavities, the hybrid modes of circular multi-step-index
optical fibers, bound and leaky modes of 1-D complex multilayers, including plasmonic
surface modes, and, with restrictions, quite general rectangular scattering problems
in 2-D.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
citation:
ama: 'Hammer M. Small-scale online simulations in guided-wave photonics. In: García-Blanco
SM, Cheben P, eds. Integrated Optics: Devices, Materials, and Technologies
XXVI. SPIE; 2022:1200414. doi:10.1117/12.2612208'
apa: 'Hammer, M. (2022). Small-scale online simulations in guided-wave photonics.
In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics: Devices,
Materials, and Technologies XXVI (p. 1200414). SPIE. https://doi.org/10.1117/12.2612208'
bibtex: '@inproceedings{Hammer_2022, title={Small-scale online simulations in guided-wave
photonics}, DOI={10.1117/12.2612208},
booktitle={Integrated Optics: Devices, Materials, and Technologies XXVI}, publisher={SPIE},
author={Hammer, Manfred}, editor={García-Blanco, Sonia M. and Cheben, Pavel},
year={2022}, pages={1200414} }'
chicago: 'Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.”
In Integrated Optics: Devices, Materials, and Technologies XXVI, edited
by Sonia M. García-Blanco and Pavel Cheben, 1200414. SPIE, 2022. https://doi.org/10.1117/12.2612208.'
ieee: 'M. Hammer, “Small-scale online simulations in guided-wave photonics,” in
Integrated Optics: Devices, Materials, and Technologies XXVI, 2022, p.
1200414, doi: 10.1117/12.2612208.'
mla: 'Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.”
Integrated Optics: Devices, Materials, and Technologies XXVI, edited by
Sonia M. García-Blanco and Pavel Cheben, SPIE, 2022, p. 1200414, doi:10.1117/12.2612208.'
short: 'M. Hammer, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics:
Devices, Materials, and Technologies XXVI, SPIE, 2022, p. 1200414.'
date_created: 2022-03-21T10:17:30Z
date_updated: 2023-04-20T10:10:55Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1117/12.2612208
editor:
- first_name: Sonia M.
full_name: García-Blanco, Sonia M.
last_name: García-Blanco
- first_name: Pavel
full_name: Cheben, Pavel
last_name: Cheben
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2022-03-22T18:05:02Z
date_updated: 2022-03-22T18:05:02Z
file_id: '30445'
file_name: 2022-03 Hammer - SPIE Photonics West 2022 - Small-scale online simulations
in guided-wave photonics (official version).pdf
file_size: 868473
relation: main_file
file_date_updated: 2022-03-22T18:05:02Z
has_accepted_license: '1'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '1200414'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '75'
name: 'TRR 142 - C05: TRR 142 - Subproject C05'
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVI'
publication_status: published
publisher: SPIE
status: public
title: Small-scale online simulations in guided-wave photonics
type: conference
user_id: '158'
year: '2022'
...
---
_id: '26627'
abstract:
- lang: eng
text: Many-body perturbation theory based on density-functional theory calculations
is used to determine the quasiparticle band structures and the dielectric functions
of the isomorphic ferroelectrics rubidium titanyl phosphate (RbTiOPO4) and potassium
titanyl arsenide (KTiOAsO4). Self-energy corrections of more than 2 eV are found
to widen the transport band gaps of both materials considerably to 5.3 and 5.2
eV, respectively. At the same time, both materials are characterized by strong
exciton binding energies of 1.4 and 1.5 eV, respectively. The solution of the
Bethe-Salpeter equation based on the quasiparticle energies results in onsets
of the optical absorption within the range of the measured data.
article_number: '015002'
article_type: original
author:
- first_name: Sergej
full_name: Neufeld, Sergej
id: '23261'
last_name: Neufeld
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: 'Neufeld S, Schindlmayr A, Schmidt WG. Quasiparticle energies and optical response
of RbTiOPO4 and KTiOAsO4. Journal of Physics: Materials. 2022;5(1). doi:10.1088/2515-7639/ac3384'
apa: 'Neufeld, S., Schindlmayr, A., & Schmidt, W. G. (2022). Quasiparticle energies
and optical response of RbTiOPO4 and KTiOAsO4. Journal of Physics: Materials,
5(1), Article 015002. https://doi.org/10.1088/2515-7639/ac3384'
bibtex: '@article{Neufeld_Schindlmayr_Schmidt_2022, title={Quasiparticle energies
and optical response of RbTiOPO4 and KTiOAsO4}, volume={5}, DOI={10.1088/2515-7639/ac3384},
number={1015002}, journal={Journal of Physics: Materials}, publisher={IOP Publishing},
author={Neufeld, Sergej and Schindlmayr, Arno and Schmidt, Wolf Gero}, year={2022}
}'
chicago: 'Neufeld, Sergej, Arno Schindlmayr, and Wolf Gero Schmidt. “Quasiparticle
Energies and Optical Response of RbTiOPO4 and KTiOAsO4.” Journal of Physics:
Materials 5, no. 1 (2022). https://doi.org/10.1088/2515-7639/ac3384.'
ieee: 'S. Neufeld, A. Schindlmayr, and W. G. Schmidt, “Quasiparticle energies and
optical response of RbTiOPO4 and KTiOAsO4,” Journal of Physics: Materials,
vol. 5, no. 1, Art. no. 015002, 2022, doi: 10.1088/2515-7639/ac3384.'
mla: 'Neufeld, Sergej, et al. “Quasiparticle Energies and Optical Response of RbTiOPO4
and KTiOAsO4.” Journal of Physics: Materials, vol. 5, no. 1, 015002, IOP
Publishing, 2022, doi:10.1088/2515-7639/ac3384.'
short: 'S. Neufeld, A. Schindlmayr, W.G. Schmidt, Journal of Physics: Materials
5 (2022).'
date_created: 2021-10-20T13:00:04Z
date_updated: 2023-04-20T14:01:16Z
ddc:
- '530'
department:
- _id: '296'
- _id: '295'
- _id: '230'
- _id: '429'
- _id: '15'
- _id: '170'
- _id: '35'
doi: 10.1088/2515-7639/ac3384
external_id:
isi:
- '000721060500001'
file:
- access_level: open_access
content_type: application/pdf
creator: schindlm
date_created: 2021-11-22T17:57:00Z
date_updated: 2021-11-22T17:57:00Z
description: Creative Commons Attribution 4.0 International Public License (CC BY
4.0)
file_id: '27705'
file_name: Neufeld_2022_J._Phys._Mater._5_015002.pdf
file_size: 2687065
relation: main_file
title: Quasiparticle energies and optical response of RbTiOPO4 and KTiOAsO4
file_date_updated: 2021-11-22T17:57:00Z
funded_apc: '1'
has_accepted_license: '1'
intvolume: ' 5'
isi: '1'
issue: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '53'
name: TRR 142
- _id: '55'
name: TRR 142 - Project Area B
- _id: '69'
name: TRR 142 - Subproject B4
- _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'
- _id: '168'
name: 'TRR 142 - B07: TRR 142 - Subproject B07'
publication: 'Journal of Physics: Materials'
publication_identifier:
eissn:
- 2515-7639
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Quasiparticle energies and optical response of RbTiOPO4 and KTiOAsO4
type: journal_article
user_id: '16199'
volume: 5
year: '2022'
...