---
_id: '64307'
author:
- first_name: Evgeny L.
full_name: Gurevich, Evgeny L.
last_name: Gurevich
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Krisztian
full_name: Neutsch, Krisztian
last_name: Neutsch
citation:
ama: Gurevich EL, Hofmann MR, Gerhardt NC, Neutsch K. Investigation of laser-induced
periodic surface structures using synthetic optical holography. Nanomaterials.
2022;13(3). doi:10.3390/nano12030505
apa: Gurevich, E. L., Hofmann, M. R., Gerhardt, N. C., & Neutsch, K. (2022).
Investigation of laser-induced periodic surface structures using synthetic optical
holography. Nanomaterials, 13(3). https://doi.org/10.3390/nano12030505
bibtex: '@article{Gurevich_Hofmann_Gerhardt_Neutsch_2022, title={Investigation of
laser-induced periodic surface structures using synthetic optical holography},
volume={13}, DOI={10.3390/nano12030505},
number={3}, journal={Nanomaterials}, author={Gurevich, Evgeny L. and Hofmann,
Martin R. and Gerhardt, Nils Christopher and Neutsch, Krisztian}, year={2022}
}'
chicago: Gurevich, Evgeny L., Martin R. Hofmann, Nils Christopher Gerhardt, and
Krisztian Neutsch. “Investigation of Laser-Induced Periodic Surface Structures
Using Synthetic Optical Holography.” Nanomaterials 13, no. 3 (2022). https://doi.org/10.3390/nano12030505.
ieee: 'E. L. Gurevich, M. R. Hofmann, N. C. Gerhardt, and K. Neutsch, “Investigation
of laser-induced periodic surface structures using synthetic optical holography,”
Nanomaterials, vol. 13, no. 3, 2022, doi: 10.3390/nano12030505.'
mla: Gurevich, Evgeny L., et al. “Investigation of Laser-Induced Periodic Surface
Structures Using Synthetic Optical Holography.” Nanomaterials, vol. 13,
no. 3, 2022, doi:10.3390/nano12030505.
short: E.L. Gurevich, M.R. Hofmann, N.C. Gerhardt, K. Neutsch, Nanomaterials 13
(2022).
date_created: 2026-02-20T10:03:52Z
date_updated: 2026-02-26T08:37:19Z
department:
- _id: '977'
doi: 10.3390/nano12030505
intvolume: ' 13'
issue: '3'
language:
- iso: eng
publication: Nanomaterials
status: public
title: Investigation of laser-induced periodic surface structures using synthetic
optical holography
type: journal_article
user_id: '15911'
volume: 13
year: '2022'
...
---
_id: '59780'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Kim-Florian
full_name: Taron, Kim-Florian
last_name: Taron
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
- first_name: Trudi-Heleen
full_name: Joubert, Trudi-Heleen
last_name: Joubert
citation:
ama: 'Petrov D, Taron K-F, Hilleringmann U, Joubert T-H. Low-cost Sensor System
for on-the-field Water Quality Analysis. In: 2021 Smart Systems Integration
(SSI). IEEE; 2021. doi:10.1109/ssi52265.2021.9466956'
apa: Petrov, D., Taron, K.-F., Hilleringmann, U., & Joubert, T.-H. (2021). Low-cost
Sensor System for on-the-field Water Quality Analysis. 2021 Smart Systems Integration
(SSI). https://doi.org/10.1109/ssi52265.2021.9466956
bibtex: '@inproceedings{Petrov_Taron_Hilleringmann_Joubert_2021, title={Low-cost
Sensor System for on-the-field Water Quality Analysis}, DOI={10.1109/ssi52265.2021.9466956},
booktitle={2021 Smart Systems Integration (SSI)}, publisher={IEEE}, author={Petrov,
Dmitry and Taron, Kim-Florian and Hilleringmann, Ulrich and Joubert, Trudi-Heleen},
year={2021} }'
chicago: Petrov, Dmitry, Kim-Florian Taron, Ulrich Hilleringmann, and Trudi-Heleen
Joubert. “Low-Cost Sensor System for on-the-Field Water Quality Analysis.” In
2021 Smart Systems Integration (SSI). IEEE, 2021. https://doi.org/10.1109/ssi52265.2021.9466956.
ieee: 'D. Petrov, K.-F. Taron, U. Hilleringmann, and T.-H. Joubert, “Low-cost Sensor
System for on-the-field Water Quality Analysis,” 2021, doi: 10.1109/ssi52265.2021.9466956.'
mla: Petrov, Dmitry, et al. “Low-Cost Sensor System for on-the-Field Water Quality
Analysis.” 2021 Smart Systems Integration (SSI), IEEE, 2021, doi:10.1109/ssi52265.2021.9466956.
short: 'D. Petrov, K.-F. Taron, U. Hilleringmann, T.-H. Joubert, in: 2021 Smart
Systems Integration (SSI), IEEE, 2021.'
date_created: 2025-05-03T07:58:46Z
date_updated: 2026-02-24T19:14:58Z
department:
- _id: '59'
- _id: '977'
doi: 10.1109/ssi52265.2021.9466956
language:
- iso: eng
publication: 2021 Smart Systems Integration (SSI)
publication_status: published
publisher: IEEE
status: public
title: Low-cost Sensor System for on-the-field Water Quality Analysis
type: conference
user_id: '8282'
year: '2021'
...
---
_id: '59777'
author:
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Ibrahim
full_name: Mwammenywa, Ibrahim
last_name: Mwammenywa
- first_name: Geoffrey Mark
full_name: Kagarura, Geoffrey Mark
id: '88623'
last_name: Kagarura
citation:
ama: 'Hilleringmann U, Petrov D, Mwammenywa I, Kagarura GM. Local Power Control
using Wireless Sensor System for Microgrids in Africa. In: 2021 IEEE AFRICON.
IEEE; 2021. doi:10.1109/africon51333.2021.9570970'
apa: Hilleringmann, U., Petrov, D., Mwammenywa, I., & Kagarura, G. M. (2021).
Local Power Control using Wireless Sensor System for Microgrids in Africa. 2021
IEEE AFRICON. https://doi.org/10.1109/africon51333.2021.9570970
bibtex: '@inproceedings{Hilleringmann_Petrov_Mwammenywa_Kagarura_2021, title={Local
Power Control using Wireless Sensor System for Microgrids in Africa}, DOI={10.1109/africon51333.2021.9570970},
booktitle={2021 IEEE AFRICON}, publisher={IEEE}, author={Hilleringmann, Ulrich
and Petrov, Dmitry and Mwammenywa, Ibrahim and Kagarura, Geoffrey Mark}, year={2021}
}'
chicago: Hilleringmann, Ulrich, Dmitry Petrov, Ibrahim Mwammenywa, and Geoffrey
Mark Kagarura. “Local Power Control Using Wireless Sensor System for Microgrids
in Africa.” In 2021 IEEE AFRICON. IEEE, 2021. https://doi.org/10.1109/africon51333.2021.9570970.
ieee: 'U. Hilleringmann, D. Petrov, I. Mwammenywa, and G. M. Kagarura, “Local Power
Control using Wireless Sensor System for Microgrids in Africa,” 2021, doi: 10.1109/africon51333.2021.9570970.'
mla: Hilleringmann, Ulrich, et al. “Local Power Control Using Wireless Sensor System
for Microgrids in Africa.” 2021 IEEE AFRICON, IEEE, 2021, doi:10.1109/africon51333.2021.9570970.
short: 'U. Hilleringmann, D. Petrov, I. Mwammenywa, G.M. Kagarura, in: 2021 IEEE
AFRICON, IEEE, 2021.'
date_created: 2025-05-02T16:10:01Z
date_updated: 2026-02-24T19:10:35Z
department:
- _id: '59'
- _id: '977'
doi: 10.1109/africon51333.2021.9570970
language:
- iso: eng
publication: 2021 IEEE AFRICON
publication_status: published
publisher: IEEE
status: public
title: Local Power Control using Wireless Sensor System for Microgrids in Africa
type: conference
user_id: '8282'
year: '2021'
...
---
_id: '39397'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Konstantin
full_name: Kroschewski, Konstantin
last_name: Kroschewski
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
citation:
ama: 'Petrov D, Kroschewski K, Hilleringmann U. Microcontroller Firmware Design
for Industrial Wireless Sensors. In: 2021 Smart Systems Integration (SSI).
IEEE; 2021. doi:10.1109/ssi52265.2021.9467010'
apa: Petrov, D., Kroschewski, K., & Hilleringmann, U. (2021). Microcontroller
Firmware Design for Industrial Wireless Sensors. 2021 Smart Systems Integration
(SSI). https://doi.org/10.1109/ssi52265.2021.9467010
bibtex: '@inproceedings{Petrov_Kroschewski_Hilleringmann_2021, title={Microcontroller
Firmware Design for Industrial Wireless Sensors}, DOI={10.1109/ssi52265.2021.9467010},
booktitle={2021 Smart Systems Integration (SSI)}, publisher={IEEE}, author={Petrov,
Dmitry and Kroschewski, Konstantin and Hilleringmann, Ulrich}, year={2021} }'
chicago: Petrov, Dmitry, Konstantin Kroschewski, and Ulrich Hilleringmann. “Microcontroller
Firmware Design for Industrial Wireless Sensors.” In 2021 Smart Systems Integration
(SSI). IEEE, 2021. https://doi.org/10.1109/ssi52265.2021.9467010.
ieee: 'D. Petrov, K. Kroschewski, and U. Hilleringmann, “Microcontroller Firmware
Design for Industrial Wireless Sensors,” 2021, doi: 10.1109/ssi52265.2021.9467010.'
mla: Petrov, Dmitry, et al. “Microcontroller Firmware Design for Industrial Wireless
Sensors.” 2021 Smart Systems Integration (SSI), IEEE, 2021, doi:10.1109/ssi52265.2021.9467010.
short: 'D. Petrov, K. Kroschewski, U. Hilleringmann, in: 2021 Smart Systems Integration
(SSI), IEEE, 2021.'
date_created: 2023-01-24T10:14:17Z
date_updated: 2026-02-24T19:11:22Z
department:
- _id: '59'
- _id: '977'
doi: 10.1109/ssi52265.2021.9467010
language:
- iso: eng
publication: 2021 Smart Systems Integration (SSI)
publication_status: published
publisher: IEEE
status: public
title: Microcontroller Firmware Design for Industrial Wireless Sensors
type: conference
user_id: '8282'
year: '2021'
...
---
_id: '59779'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
citation:
ama: Petrov D, Hilleringmann U. Low-Power Primary Cell with Water-Based Electrolyte
for Powering of Wireless Sensors. Advances in Science, Technology and Engineering
Systems Journal. 2021;6(5):267-272. doi:10.25046/aj060529
apa: Petrov, D., & Hilleringmann, U. (2021). Low-Power Primary Cell with Water-Based
Electrolyte for Powering of Wireless Sensors. Advances in Science, Technology
and Engineering Systems Journal, 6(5), 267–272. https://doi.org/10.25046/aj060529
bibtex: '@article{Petrov_Hilleringmann_2021, title={Low-Power Primary Cell with
Water-Based Electrolyte for Powering of Wireless Sensors}, volume={6}, DOI={10.25046/aj060529}, number={5}, journal={Advances
in Science, Technology and Engineering Systems Journal}, publisher={ASTES Journal},
author={Petrov, Dmitry and Hilleringmann, Ulrich}, year={2021}, pages={267–272}
}'
chicago: 'Petrov, Dmitry, and Ulrich Hilleringmann. “Low-Power Primary Cell with
Water-Based Electrolyte for Powering of Wireless Sensors.” Advances in Science,
Technology and Engineering Systems Journal 6, no. 5 (2021): 267–72. https://doi.org/10.25046/aj060529.'
ieee: 'D. Petrov and U. Hilleringmann, “Low-Power Primary Cell with Water-Based
Electrolyte for Powering of Wireless Sensors,” Advances in Science, Technology
and Engineering Systems Journal, vol. 6, no. 5, pp. 267–272, 2021, doi: 10.25046/aj060529.'
mla: Petrov, Dmitry, and Ulrich Hilleringmann. “Low-Power Primary Cell with Water-Based
Electrolyte for Powering of Wireless Sensors.” Advances in Science, Technology
and Engineering Systems Journal, vol. 6, no. 5, ASTES Journal, 2021, pp. 267–72,
doi:10.25046/aj060529.
short: D. Petrov, U. Hilleringmann, Advances in Science, Technology and Engineering
Systems Journal 6 (2021) 267–272.
date_created: 2025-05-03T07:55:42Z
date_updated: 2026-02-24T19:15:34Z
department:
- _id: '59'
- _id: '977'
doi: 10.25046/aj060529
intvolume: ' 6'
issue: '5'
language:
- iso: eng
page: 267-272
publication: Advances in Science, Technology and Engineering Systems Journal
publication_identifier:
issn:
- 2415-6698
- 2415-6698
publication_status: published
publisher: ASTES Journal
status: public
title: Low-Power Primary Cell with Water-Based Electrolyte for Powering of Wireless
Sensors
type: journal_article
user_id: '8282'
volume: 6
year: '2021'
...
---
_id: '59774'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Konstantin
full_name: Kroschewski, Konstantin
last_name: Kroschewski
- first_name: Ibrahim
full_name: Mwammenywa, Ibrahim
last_name: Mwammenywa
- first_name: Geoffrey Mark
full_name: Kagarura, Geoffrey Mark
id: '88623'
last_name: Kagarura
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
citation:
ama: 'Petrov D, Kroschewski K, Mwammenywa I, Kagarura GM, Hilleringmann U. Low-Cost
NB-IoT Microgrid Power Quality Monitoring System. In: 2021 IEEE Sensors.
IEEE; 2021. doi:10.1109/sensors47087.2021.9639641'
apa: Petrov, D., Kroschewski, K., Mwammenywa, I., Kagarura, G. M., & Hilleringmann,
U. (2021). Low-Cost NB-IoT Microgrid Power Quality Monitoring System. 2021
IEEE Sensors. https://doi.org/10.1109/sensors47087.2021.9639641
bibtex: '@inproceedings{Petrov_Kroschewski_Mwammenywa_Kagarura_Hilleringmann_2021,
title={Low-Cost NB-IoT Microgrid Power Quality Monitoring System}, DOI={10.1109/sensors47087.2021.9639641},
booktitle={2021 IEEE Sensors}, publisher={IEEE}, author={Petrov, Dmitry and Kroschewski,
Konstantin and Mwammenywa, Ibrahim and Kagarura, Geoffrey Mark and Hilleringmann,
Ulrich}, year={2021} }'
chicago: Petrov, Dmitry, Konstantin Kroschewski, Ibrahim Mwammenywa, Geoffrey Mark
Kagarura, and Ulrich Hilleringmann. “Low-Cost NB-IoT Microgrid Power Quality Monitoring
System.” In 2021 IEEE Sensors. IEEE, 2021. https://doi.org/10.1109/sensors47087.2021.9639641.
ieee: 'D. Petrov, K. Kroschewski, I. Mwammenywa, G. M. Kagarura, and U. Hilleringmann,
“Low-Cost NB-IoT Microgrid Power Quality Monitoring System,” 2021, doi: 10.1109/sensors47087.2021.9639641.'
mla: Petrov, Dmitry, et al. “Low-Cost NB-IoT Microgrid Power Quality Monitoring
System.” 2021 IEEE Sensors, IEEE, 2021, doi:10.1109/sensors47087.2021.9639641.
short: 'D. Petrov, K. Kroschewski, I. Mwammenywa, G.M. Kagarura, U. Hilleringmann,
in: 2021 IEEE Sensors, IEEE, 2021.'
date_created: 2025-05-02T16:01:20Z
date_updated: 2026-02-24T19:17:43Z
department:
- _id: '59'
- _id: '977'
doi: 10.1109/sensors47087.2021.9639641
language:
- iso: eng
publication: 2021 IEEE Sensors
publication_status: published
publisher: IEEE
status: public
title: Low-Cost NB-IoT Microgrid Power Quality Monitoring System
type: conference
user_id: '8282'
year: '2021'
...
---
_id: '59686'
abstract:
- lang: eng
text: The monolithic growth of III–V materials directly on Si substrates provides
a promising integration approach for passive and active silicon photonic integrated
circuits but still faces great challenges in crystal quality due to misfit defect
formation. Nano-ridge engineering is a new approach that enables the integration
of III–V based devices on trench-patterned Si substrates with very high crystal
quality. Using selective area growth, the III–V material is deposited into narrow
trenches to reduce the dislocation defect density by aspect ratio trapping. The
growth is continued out of the trench pattern and a box-shaped III–V nano-ridge
is engineered by adjusting the growth parameters. A flat (001) GaAs nano-ridge
surface enables the epitaxial integration of a common InGaAs/GaAs multi-quantum-well
(MQW) structure as an optical gain medium to build a laser diode. In this study,
a clear correlation is found between the photoluminescence (PL) lifetime, extracted
from time-resolved photoluminescence (TRPL) measurements, with the InGaAs/GaAs
nano-ridge size and defect density, which are both predefined by the nano-ridge
related pattern trench width. Through the addition of an InGaP passivation layer,
a MQW PL lifetime of up to 800 ps and 1000 ps is measured when pumped at 900 nm
(only QWs were excited) and 800 nm (QWs + barrier excited), respectively. The
addition of a bottom carrier blocking layer further increases this lifetime to
∼2.5ns (pumped at 800 nm), which clearly demonstrates the high crystal quality
of the nano-ridge material. These TRPL measurements not only deliver quick and
valuable feedback about the III–V material quality but also provide an important
understanding for the heterostructure design and carrier confinement of the nano-ridge
laser diode.
author:
- first_name: Yuting
full_name: Shi, Yuting
last_name: Shi
- first_name: Lisa C.
full_name: Kreuzer, Lisa C.
last_name: Kreuzer
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Marianna
full_name: Pantouvaki, Marianna
last_name: Pantouvaki
- first_name: Joris
full_name: Van Campenhout, Joris
last_name: Van Campenhout
- first_name: Marina
full_name: Baryshnikova, Marina
last_name: Baryshnikova
- first_name: Robert
full_name: Langer, Robert
last_name: Langer
- first_name: Dries
full_name: Van Thourhout, Dries
last_name: Van Thourhout
- first_name: Bernardette
full_name: Kunert, Bernardette
last_name: Kunert
citation:
ama: Shi Y, Kreuzer LC, Gerhardt NC, et al. Time-resolved photoluminescence characterization
of InGaAs/GaAs nano-ridges monolithically grown on 300 mm Si substrates. Journal
of Applied Physics. 2020;127(10). doi:10.1063/1.5139636
apa: Shi, Y., Kreuzer, L. C., Gerhardt, N. C., Pantouvaki, M., Van Campenhout, J.,
Baryshnikova, M., Langer, R., Van Thourhout, D., & Kunert, B. (2020). Time-resolved
photoluminescence characterization of InGaAs/GaAs nano-ridges monolithically grown
on 300 mm Si substrates. Journal of Applied Physics, 127(10). https://doi.org/10.1063/1.5139636
bibtex: '@article{Shi_Kreuzer_Gerhardt_Pantouvaki_Van Campenhout_Baryshnikova_Langer_Van
Thourhout_Kunert_2020, title={Time-resolved photoluminescence characterization
of InGaAs/GaAs nano-ridges monolithically grown on 300 mm Si substrates}, volume={127},
DOI={10.1063/1.5139636}, number={10},
journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Shi,
Yuting and Kreuzer, Lisa C. and Gerhardt, Nils Christopher and Pantouvaki, Marianna
and Van Campenhout, Joris and Baryshnikova, Marina and Langer, Robert and Van
Thourhout, Dries and Kunert, Bernardette}, year={2020} }'
chicago: Shi, Yuting, Lisa C. Kreuzer, Nils Christopher Gerhardt, Marianna Pantouvaki,
Joris Van Campenhout, Marina Baryshnikova, Robert Langer, Dries Van Thourhout,
and Bernardette Kunert. “Time-Resolved Photoluminescence Characterization of InGaAs/GaAs
Nano-Ridges Monolithically Grown on 300 Mm Si Substrates.” Journal of Applied
Physics 127, no. 10 (2020). https://doi.org/10.1063/1.5139636.
ieee: 'Y. Shi et al., “Time-resolved photoluminescence characterization of
InGaAs/GaAs nano-ridges monolithically grown on 300 mm Si substrates,” Journal
of Applied Physics, vol. 127, no. 10, 2020, doi: 10.1063/1.5139636.'
mla: Shi, Yuting, et al. “Time-Resolved Photoluminescence Characterization of InGaAs/GaAs
Nano-Ridges Monolithically Grown on 300 Mm Si Substrates.” Journal of Applied
Physics, vol. 127, no. 10, AIP Publishing, 2020, doi:10.1063/1.5139636.
short: Y. Shi, L.C. Kreuzer, N.C. Gerhardt, M. Pantouvaki, J. Van Campenhout, M.
Baryshnikova, R. Langer, D. Van Thourhout, B. Kunert, Journal of Applied Physics
127 (2020).
date_created: 2025-04-25T07:18:24Z
date_updated: 2025-04-25T07:28:42Z
department:
- _id: '977'
doi: 10.1063/1.5139636
intvolume: ' 127'
issue: '10'
language:
- iso: eng
publication: Journal of Applied Physics
publication_identifier:
issn:
- 0021-8979
- 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Time-resolved photoluminescence characterization of InGaAs/GaAs nano-ridges
monolithically grown on 300 mm Si substrates
type: journal_article
user_id: '15911'
volume: 127
year: '2020'
...
---
_id: '59685'
abstract:
- lang: eng
text: Introducing spin-polarized carriers in semiconductor lasers reveals an alternative
path to realize room-temperature spintronic applications, beyond the usual magnetoresistive
effects. Through carrier recombination, the angular momentum of the spin-polarized
carriers is transferred to photons, thus leading to the circularly polarized emitted
light. The intuition for the operation of such spin-lasers can be obtained from
simple bucket and harmonic oscillator models, elucidating their steady-state and
dynamic response, respectively. These lasers extend the functionalities of spintronic
devices and exceed the performance of conventional (spin-unpolarized) lasers,
including an order of magnitude faster modulation frequency. Surprisingly, this
ultrafast operation relies on a short carrier spin relaxation time and a large
anisotropy of the refractive index, both viewed as detrimental in spintronics
and conventional lasers. Spin-lasers provide a platform to test novel concepts
in spin devices and offer progress connected to the advances in more traditional
areas of spintronics.
article_number: '113949'
article_type: review
author:
- first_name: Igor
full_name: Žutić, Igor
last_name: Žutić
- first_name: Gaofeng
full_name: Xu, Gaofeng
last_name: Xu
- first_name: Markus
full_name: Lindemann, Markus
last_name: Lindemann
- first_name: Paulo E.
full_name: Faria Junior, Paulo E.
last_name: Faria Junior
- first_name: Jeongsu
full_name: Lee, Jeongsu
last_name: Lee
- first_name: Velimir
full_name: Labinac, Velimir
last_name: Labinac
- first_name: Kristian
full_name: Stojšić, Kristian
last_name: Stojšić
- first_name: Guilherme M.
full_name: Sipahi, Guilherme M.
last_name: Sipahi
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
citation:
ama: 'Žutić I, Xu G, Lindemann M, et al. Spin-lasers: spintronics beyond magnetoresistance.
Solid State Communications. 2020;316-317. doi:10.1016/j.ssc.2020.113949'
apa: 'Žutić, I., Xu, G., Lindemann, M., Faria Junior, P. E., Lee, J., Labinac, V.,
Stojšić, K., Sipahi, G. M., Hofmann, M. R., & Gerhardt, N. C. (2020). Spin-lasers:
spintronics beyond magnetoresistance. Solid State Communications, 316–317,
Article 113949. https://doi.org/10.1016/j.ssc.2020.113949'
bibtex: '@article{Žutić_Xu_Lindemann_Faria Junior_Lee_Labinac_Stojšić_Sipahi_Hofmann_Gerhardt_2020,
title={Spin-lasers: spintronics beyond magnetoresistance}, volume={316–317}, DOI={10.1016/j.ssc.2020.113949},
number={113949}, journal={Solid State Communications}, publisher={Elsevier BV},
author={Žutić, Igor and Xu, Gaofeng and Lindemann, Markus and Faria Junior, Paulo
E. and Lee, Jeongsu and Labinac, Velimir and Stojšić, Kristian and Sipahi, Guilherme
M. and Hofmann, Martin R. and Gerhardt, Nils Christopher}, year={2020} }'
chicago: 'Žutić, Igor, Gaofeng Xu, Markus Lindemann, Paulo E. Faria Junior, Jeongsu
Lee, Velimir Labinac, Kristian Stojšić, Guilherme M. Sipahi, Martin R. Hofmann,
and Nils Christopher Gerhardt. “Spin-Lasers: Spintronics beyond Magnetoresistance.”
Solid State Communications 316–317 (2020). https://doi.org/10.1016/j.ssc.2020.113949.'
ieee: 'I. Žutić et al., “Spin-lasers: spintronics beyond magnetoresistance,”
Solid State Communications, vol. 316–317, Art. no. 113949, 2020, doi: 10.1016/j.ssc.2020.113949.'
mla: 'Žutić, Igor, et al. “Spin-Lasers: Spintronics beyond Magnetoresistance.” Solid
State Communications, vol. 316–317, 113949, Elsevier BV, 2020, doi:10.1016/j.ssc.2020.113949.'
short: I. Žutić, G. Xu, M. Lindemann, P.E. Faria Junior, J. Lee, V. Labinac, K.
Stojšić, G.M. Sipahi, M.R. Hofmann, N.C. Gerhardt, Solid State Communications
316–317 (2020).
date_created: 2025-04-25T07:11:46Z
date_updated: 2025-04-25T07:28:46Z
department:
- _id: '977'
doi: 10.1016/j.ssc.2020.113949
language:
- iso: eng
publication: Solid State Communications
publication_identifier:
issn:
- 0038-1098
publication_status: published
publisher: Elsevier BV
status: public
title: 'Spin-lasers: spintronics beyond magnetoresistance'
type: journal_article
user_id: '15911'
volume: 316-317
year: '2020'
...
---
_id: '59684'
abstract:
- lang: eng
text: In this paper, we present a confocal laser scanning holographic microscope
for the investigation of buried structures. The multimodal system combines high
diffraction limited resolution and high signal-to-noise-ratio with the ability
of phase acquisition. The amplitude and phase imaging capabilities of the system
are shown on a test target. For the investigation of buried integrated semiconductor
structures, we expand our system with an optical beam induced current modality
that provides additional structure-sensitive contrast. We demonstrate the performance
of the multimodal system by imaging the buried structures of a microcontroller
through the silicon backside of its housing in reflection geometry.
article_number: A8
article_type: original
author:
- first_name: Lena
full_name: Schnitzler, Lena
last_name: Schnitzler
- first_name: Krisztian
full_name: Neutsch, Krisztian
last_name: Neutsch
- first_name: Falk
full_name: Schellenberg, Falk
last_name: Schellenberg
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
citation:
ama: Schnitzler L, Neutsch K, Schellenberg F, Hofmann MR, Gerhardt NC. Confocal
laser scanning holographic microscopy of buried structures. Applied Optics.
2020;60(4). doi:10.1364/ao.403687
apa: Schnitzler, L., Neutsch, K., Schellenberg, F., Hofmann, M. R., & Gerhardt,
N. C. (2020). Confocal laser scanning holographic microscopy of buried structures.
Applied Optics, 60(4), Article A8. https://doi.org/10.1364/ao.403687
bibtex: '@article{Schnitzler_Neutsch_Schellenberg_Hofmann_Gerhardt_2020, title={Confocal
laser scanning holographic microscopy of buried structures}, volume={60}, DOI={10.1364/ao.403687}, number={4A8},
journal={Applied Optics}, publisher={Optica Publishing Group}, author={Schnitzler,
Lena and Neutsch, Krisztian and Schellenberg, Falk and Hofmann, Martin R. and
Gerhardt, Nils Christopher}, year={2020} }'
chicago: Schnitzler, Lena, Krisztian Neutsch, Falk Schellenberg, Martin R. Hofmann,
and Nils Christopher Gerhardt. “Confocal Laser Scanning Holographic Microscopy
of Buried Structures.” Applied Optics 60, no. 4 (2020). https://doi.org/10.1364/ao.403687.
ieee: 'L. Schnitzler, K. Neutsch, F. Schellenberg, M. R. Hofmann, and N. C. Gerhardt,
“Confocal laser scanning holographic microscopy of buried structures,” Applied
Optics, vol. 60, no. 4, Art. no. A8, 2020, doi: 10.1364/ao.403687.'
mla: Schnitzler, Lena, et al. “Confocal Laser Scanning Holographic Microscopy of
Buried Structures.” Applied Optics, vol. 60, no. 4, A8, Optica Publishing
Group, 2020, doi:10.1364/ao.403687.
short: L. Schnitzler, K. Neutsch, F. Schellenberg, M.R. Hofmann, N.C. Gerhardt,
Applied Optics 60 (2020).
date_created: 2025-04-25T07:04:55Z
date_updated: 2026-02-19T14:23:31Z
department:
- _id: '977'
doi: 10.1364/ao.403687
extern: '1'
intvolume: ' 60'
issue: '4'
language:
- iso: eng
publication: Applied Optics
publication_identifier:
issn:
- 1559-128X
- 2155-3165
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: Confocal laser scanning holographic microscopy of buried structures
type: journal_article
user_id: '15911'
volume: 60
year: '2020'
...
---
_id: '39405'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
citation:
ama: 'Petrov D, Hilleringmann U. Water-based primary cell for powering of wireless
sensors. In: 2020 IEEE SENSORS. IEEE; 2020. doi:10.1109/sensors47125.2020.9278891'
apa: Petrov, D., & Hilleringmann, U. (2020). Water-based primary cell for powering
of wireless sensors. 2020 IEEE SENSORS. https://doi.org/10.1109/sensors47125.2020.9278891
bibtex: '@inproceedings{Petrov_Hilleringmann_2020, title={Water-based primary cell
for powering of wireless sensors}, DOI={10.1109/sensors47125.2020.9278891},
booktitle={2020 IEEE SENSORS}, publisher={IEEE}, author={Petrov, Dmitry and Hilleringmann,
Ulrich}, year={2020} }'
chicago: Petrov, Dmitry, and Ulrich Hilleringmann. “Water-Based Primary Cell for
Powering of Wireless Sensors.” In 2020 IEEE SENSORS. IEEE, 2020. https://doi.org/10.1109/sensors47125.2020.9278891.
ieee: 'D. Petrov and U. Hilleringmann, “Water-based primary cell for powering of
wireless sensors,” 2020, doi: 10.1109/sensors47125.2020.9278891.'
mla: Petrov, Dmitry, and Ulrich Hilleringmann. “Water-Based Primary Cell for Powering
of Wireless Sensors.” 2020 IEEE SENSORS, IEEE, 2020, doi:10.1109/sensors47125.2020.9278891.
short: 'D. Petrov, U. Hilleringmann, in: 2020 IEEE SENSORS, IEEE, 2020.'
date_created: 2023-01-24T10:22:29Z
date_updated: 2026-02-24T19:12:28Z
department:
- _id: '59'
- _id: '977'
doi: 10.1109/sensors47125.2020.9278891
language:
- iso: eng
publication: 2020 IEEE SENSORS
publication_status: published
publisher: IEEE
status: public
title: Water-based primary cell for powering of wireless sensors
type: conference
user_id: '8282'
year: '2020'
...
---
_id: '59781'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Thorsten
full_name: Meyers, Thorsten
last_name: Meyers
- first_name: Julia
full_name: Reker, Julia
last_name: Reker
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
citation:
ama: 'Petrov D, Meyers T, Reker J, Hilleringmann U. Doctor blade system for the
deposition of thin semiconducting films. In: du Plessis M, ed. Fifth Conference
on Sensors, MEMS, and Electro-Optic Systems. SPIE; 2019. doi:10.1117/12.2501307'
apa: Petrov, D., Meyers, T., Reker, J., & Hilleringmann, U. (2019). Doctor blade
system for the deposition of thin semiconducting films. In M. du Plessis (Ed.),
Fifth Conference on Sensors, MEMS, and Electro-Optic Systems. SPIE. https://doi.org/10.1117/12.2501307
bibtex: '@inproceedings{Petrov_Meyers_Reker_Hilleringmann_2019, title={Doctor blade
system for the deposition of thin semiconducting films}, DOI={10.1117/12.2501307},
booktitle={Fifth Conference on Sensors, MEMS, and Electro-Optic Systems}, publisher={SPIE},
author={Petrov, Dmitry and Meyers, Thorsten and Reker, Julia and Hilleringmann,
Ulrich}, editor={du Plessis, Monuko}, year={2019} }'
chicago: Petrov, Dmitry, Thorsten Meyers, Julia Reker, and Ulrich Hilleringmann.
“Doctor Blade System for the Deposition of Thin Semiconducting Films.” In Fifth
Conference on Sensors, MEMS, and Electro-Optic Systems, edited by Monuko du
Plessis. SPIE, 2019. https://doi.org/10.1117/12.2501307.
ieee: 'D. Petrov, T. Meyers, J. Reker, and U. Hilleringmann, “Doctor blade system
for the deposition of thin semiconducting films,” in Fifth Conference on Sensors,
MEMS, and Electro-Optic Systems, 2019, doi: 10.1117/12.2501307.'
mla: Petrov, Dmitry, et al. “Doctor Blade System for the Deposition of Thin Semiconducting
Films.” Fifth Conference on Sensors, MEMS, and Electro-Optic Systems, edited
by Monuko du Plessis, SPIE, 2019, doi:10.1117/12.2501307.
short: 'D. Petrov, T. Meyers, J. Reker, U. Hilleringmann, in: M. du Plessis (Ed.),
Fifth Conference on Sensors, MEMS, and Electro-Optic Systems, SPIE, 2019.'
date_created: 2025-05-03T08:01:08Z
date_updated: 2026-02-24T19:14:18Z
department:
- _id: '59'
- _id: '977'
doi: 10.1117/12.2501307
editor:
- first_name: Monuko
full_name: du Plessis, Monuko
last_name: du Plessis
language:
- iso: eng
publication: Fifth Conference on Sensors, MEMS, and Electro-Optic Systems
publication_status: published
publisher: SPIE
status: public
title: Doctor blade system for the deposition of thin semiconducting films
type: conference
user_id: '8282'
year: '2019'
...
---
_id: '39943'
author:
- first_name: Marco
full_name: Schmidt, Marco
last_name: Schmidt
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Christian
full_name: Hedayat, Christian
last_name: Hedayat
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
- first_name: Thomas
full_name: Otto, Thomas
last_name: Otto
citation:
ama: 'Schmidt M, Petrov D, Hedayat C, Hilleringmann U, Otto T. Wireless power supply
for a RFID based sensor platform. In: Smart Systems Integration; 13th International
Conference and Exhibition on Integration Issues of Miniaturized Systems. ;
2019:1-4.'
apa: Schmidt, M., Petrov, D., Hedayat, C., Hilleringmann, U., & Otto, T. (2019).
Wireless power supply for a RFID based sensor platform. Smart Systems Integration;
13th International Conference and Exhibition on Integration Issues of Miniaturized
Systems, 1–4.
bibtex: '@inproceedings{Schmidt_Petrov_Hedayat_Hilleringmann_Otto_2019, title={Wireless
power supply for a RFID based sensor platform}, booktitle={Smart Systems Integration;
13th International Conference and Exhibition on Integration Issues of Miniaturized
Systems}, author={Schmidt, Marco and Petrov, Dmitry and Hedayat, Christian and
Hilleringmann, Ulrich and Otto, Thomas}, year={2019}, pages={1–4} }'
chicago: Schmidt, Marco, Dmitry Petrov, Christian Hedayat, Ulrich Hilleringmann,
and Thomas Otto. “Wireless Power Supply for a RFID Based Sensor Platform.” In
Smart Systems Integration; 13th International Conference and Exhibition on
Integration Issues of Miniaturized Systems, 1–4, 2019.
ieee: M. Schmidt, D. Petrov, C. Hedayat, U. Hilleringmann, and T. Otto, “Wireless
power supply for a RFID based sensor platform,” in Smart Systems Integration;
13th International Conference and Exhibition on Integration Issues of Miniaturized
Systems, 2019, pp. 1–4.
mla: Schmidt, Marco, et al. “Wireless Power Supply for a RFID Based Sensor Platform.”
Smart Systems Integration; 13th International Conference and Exhibition on
Integration Issues of Miniaturized Systems, 2019, pp. 1–4.
short: 'M. Schmidt, D. Petrov, C. Hedayat, U. Hilleringmann, T. Otto, in: Smart
Systems Integration; 13th International Conference and Exhibition on Integration
Issues of Miniaturized Systems, 2019, pp. 1–4.'
date_created: 2023-01-25T09:51:25Z
date_updated: 2026-02-24T19:10:12Z
department:
- _id: '59'
- _id: '977'
language:
- iso: eng
page: 1-4
publication: Smart Systems Integration; 13th International Conference and Exhibition
on Integration Issues of Miniaturized Systems
status: public
title: Wireless power supply for a RFID based sensor platform
type: conference
user_id: '8282'
year: '2019'
...
---
_id: '39944'
author:
- first_name: Dmitry
full_name: Petrov, Dmitry
id: '8282'
last_name: Petrov
- first_name: Marco
full_name: Schmidt, Marco
last_name: Schmidt
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
id: '20179'
last_name: Hilleringmann
- first_name: Christian
full_name: Hedayat, Christian
last_name: Hedayat
- first_name: Thomas
full_name: Otto, Thomas
last_name: Otto
citation:
ama: 'Petrov D, Schmidt M, Hilleringmann U, Hedayat C, Otto T. RFID based sensor
platform for industry 4.0 application. In: Smart Systems Integration; 13th
International Conference and Exhibition on Integration Issues of Miniaturized
Systems. ; 2019:1-4.'
apa: Petrov, D., Schmidt, M., Hilleringmann, U., Hedayat, C., & Otto, T. (2019).
RFID based sensor platform for industry 4.0 application. Smart Systems Integration;
13th International Conference and Exhibition on Integration Issues of Miniaturized
Systems, 1–4.
bibtex: '@inproceedings{Petrov_Schmidt_Hilleringmann_Hedayat_Otto_2019, title={RFID
based sensor platform for industry 4.0 application}, booktitle={Smart Systems
Integration; 13th International Conference and Exhibition on Integration Issues
of Miniaturized Systems}, author={Petrov, Dmitry and Schmidt, Marco and Hilleringmann,
Ulrich and Hedayat, Christian and Otto, Thomas}, year={2019}, pages={1–4} }'
chicago: Petrov, Dmitry, Marco Schmidt, Ulrich Hilleringmann, Christian Hedayat,
and Thomas Otto. “RFID Based Sensor Platform for Industry 4.0 Application.” In
Smart Systems Integration; 13th International Conference and Exhibition on
Integration Issues of Miniaturized Systems, 1–4, 2019.
ieee: D. Petrov, M. Schmidt, U. Hilleringmann, C. Hedayat, and T. Otto, “RFID based
sensor platform for industry 4.0 application,” in Smart Systems Integration;
13th International Conference and Exhibition on Integration Issues of Miniaturized
Systems, 2019, pp. 1–4.
mla: Petrov, Dmitry, et al. “RFID Based Sensor Platform for Industry 4.0 Application.”
Smart Systems Integration; 13th International Conference and Exhibition on
Integration Issues of Miniaturized Systems, 2019, pp. 1–4.
short: 'D. Petrov, M. Schmidt, U. Hilleringmann, C. Hedayat, T. Otto, in: Smart
Systems Integration; 13th International Conference and Exhibition on Integration
Issues of Miniaturized Systems, 2019, pp. 1–4.'
date_created: 2023-01-25T09:52:16Z
date_updated: 2026-02-24T19:13:17Z
department:
- _id: '59'
- _id: '977'
language:
- iso: eng
page: 1-4
publication: Smart Systems Integration; 13th International Conference and Exhibition
on Integration Issues of Miniaturized Systems
status: public
title: RFID based sensor platform for industry 4.0 application
type: conference
user_id: '8282'
year: '2019'
...
---
_id: '64361'
author:
- first_name: Krisztian
full_name: Neutsch, Krisztian
last_name: Neutsch
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Lena
full_name: Schnitzler, Lena
last_name: Schnitzler
- first_name: Marlon J.
full_name: Tranelis, Marlon J.
last_name: Tranelis
citation:
ama: 'Neutsch K, Hofmann MR, Gerhardt NC, Schnitzler L, Tranelis MJ. Three-dimensional
particle localization with common-path digital holographic microscopy. In: Practical
Holography XXXIII: Displays, Materials, and Applications. ; 2019. doi:10.1117/12.2509448'
apa: 'Neutsch, K., Hofmann, M. R., Gerhardt, N. C., Schnitzler, L., & Tranelis,
M. J. (2019). Three-dimensional particle localization with common-path digital
holographic microscopy. Practical Holography XXXIII: Displays, Materials, and
Applications. https://doi.org/10.1117/12.2509448'
bibtex: '@inproceedings{Neutsch_Hofmann_Gerhardt_Schnitzler_Tranelis_2019, title={Three-dimensional
particle localization with common-path digital holographic microscopy}, DOI={10.1117/12.2509448}, booktitle={Practical
Holography XXXIII: Displays, Materials, and Applications}, author={Neutsch, Krisztian
and Hofmann, Martin R. and Gerhardt, Nils Christopher and Schnitzler, Lena and
Tranelis, Marlon J.}, year={2019} }'
chicago: 'Neutsch, Krisztian, Martin R. Hofmann, Nils Christopher Gerhardt, Lena
Schnitzler, and Marlon J. Tranelis. “Three-Dimensional Particle Localization with
Common-Path Digital Holographic Microscopy.” In Practical Holography XXXIII:
Displays, Materials, and Applications, 2019. https://doi.org/10.1117/12.2509448.'
ieee: 'K. Neutsch, M. R. Hofmann, N. C. Gerhardt, L. Schnitzler, and M. J. Tranelis,
“Three-dimensional particle localization with common-path digital holographic
microscopy,” 2019, doi: 10.1117/12.2509448.'
mla: 'Neutsch, Krisztian, et al. “Three-Dimensional Particle Localization with Common-Path
Digital Holographic Microscopy.” Practical Holography XXXIII: Displays, Materials,
and Applications, 2019, doi:10.1117/12.2509448.'
short: 'K. Neutsch, M.R. Hofmann, N.C. Gerhardt, L. Schnitzler, M.J. Tranelis, in:
Practical Holography XXXIII: Displays, Materials, and Applications, 2019.'
date_created: 2026-02-20T10:04:02Z
date_updated: 2026-02-25T13:50:47Z
department:
- _id: '977'
doi: 10.1117/12.2509448
language:
- iso: eng
publication: 'Practical Holography XXXIII: Displays, Materials, and Applications'
status: public
title: Three-dimensional particle localization with common-path digital holographic
microscopy
type: conference
user_id: '15911'
year: '2019'
...
---
_id: '64360'
author:
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Igor
full_name: Žutić, Igor
last_name: Žutić
- first_name: Jeongsu
full_name: Lee, Jeongsu
last_name: Lee
- first_name: Christian
full_name: Gøthgen, Christian
last_name: Gøthgen
- first_name: Junior
full_name: Farla, Paulo E., Junior
last_name: Farla, Paulo E.
- first_name: Gaofeng
full_name: Xu, Gaofeng
last_name: Xu
- first_name: Guilherme M.
full_name: Sipahi, Guilherme M.
last_name: Sipahi
citation:
ama: 'Gerhardt NC, Žutić I, Lee J, et al. Semiconductor spin-lasers. In: Nanoscale
Spintronics and Applications. ; 2019:499-540.'
apa: Gerhardt, N. C., Žutić, I., Lee, J., Gøthgen, C., Farla, Paulo E., J., Xu,
G., & Sipahi, G. M. (2019). Semiconductor spin-lasers. In Nanoscale spintronics
and applications (pp. 499–540).
bibtex: '@inbook{Gerhardt_Žutić_Lee_Gøthgen_Farla, Paulo E._Xu_Sipahi_2019, title={Semiconductor
spin-lasers}, booktitle={Nanoscale spintronics and applications}, author={Gerhardt,
Nils Christopher and Žutić, Igor and Lee, Jeongsu and Gøthgen, Christian and Farla,
Paulo E., Junior and Xu, Gaofeng and Sipahi, Guilherme M.}, year={2019}, pages={499–540}
}'
chicago: Gerhardt, Nils Christopher, Igor Žutić, Jeongsu Lee, Christian Gøthgen,
Junior Farla, Paulo E., Gaofeng Xu, and Guilherme M. Sipahi. “Semiconductor Spin-Lasers.”
In Nanoscale Spintronics and Applications, 499–540, 2019.
ieee: N. C. Gerhardt et al., “Semiconductor spin-lasers,” in Nanoscale
spintronics and applications, 2019, pp. 499–540.
mla: Gerhardt, Nils Christopher, et al. “Semiconductor Spin-Lasers.” Nanoscale
Spintronics and Applications, 2019, pp. 499–540.
short: 'N.C. Gerhardt, I. Žutić, J. Lee, C. Gøthgen, J. Farla, Paulo E., G. Xu,
G.M. Sipahi, in: Nanoscale Spintronics and Applications, 2019, pp. 499–540.'
date_created: 2026-02-20T10:04:02Z
date_updated: 2026-02-25T13:51:03Z
department:
- _id: '977'
language:
- iso: eng
page: 499 - 540
publication: Nanoscale spintronics and applications
status: public
title: Semiconductor spin-lasers
type: book_chapter
user_id: '15911'
year: '2019'
...
---
_id: '59687'
abstract:
- lang: eng
text: Lasers have both ubiquitous applications and roles as model systems in which
non-equilibrium and cooperative phenomena can be elucidated1. The introduction
of novel concepts in laser operation thus has potential to lead to both new applications
and fundamental insights2. Spintronics3, in which both the spin and the charge
of the electron are used, has led to the development of spin-lasers, in which
charge-carrier spin and photon spin are exploited. Here we show experimentally
that the coupling between carrier spin and light polarization in common semiconductor
lasers can enable room-temperature modulation frequencies above 200 gigahertz,
exceeding by nearly an order of magnitude the best conventional semiconductor
lasers. Surprisingly, this ultrafast operation of the resultant spin-laser relies
on a short carrier spin relaxation time and a large anisotropy of the refractive
index, both of which are commonly viewed as detrimental in spintronics3 and conventional
lasers4. Our results overcome the key speed limitations of conventional directly
modulated lasers and offer a prospect for the next generation of low-energy ultrafast
optical communication.
author:
- first_name: Markus
full_name: Lindemann, Markus
last_name: Lindemann
- first_name: Gaofeng
full_name: Xu, Gaofeng
last_name: Xu
- first_name: Tobias
full_name: Pusch, Tobias
last_name: Pusch
- first_name: Rainer
full_name: Michalzik, Rainer
last_name: Michalzik
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Igor
full_name: Žutić, Igor
last_name: Žutić
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
citation:
ama: Lindemann M, Xu G, Pusch T, et al. Ultrafast spin-lasers. Nature. 2019;568(7751):212-215.
doi:10.1038/s41586-019-1073-y
apa: Lindemann, M., Xu, G., Pusch, T., Michalzik, R., Hofmann, M. R., Žutić, I.,
& Gerhardt, N. C. (2019). Ultrafast spin-lasers. Nature, 568(7751),
212–215. https://doi.org/10.1038/s41586-019-1073-y
bibtex: '@article{Lindemann_Xu_Pusch_Michalzik_Hofmann_Žutić_Gerhardt_2019, title={Ultrafast
spin-lasers}, volume={568}, DOI={10.1038/s41586-019-1073-y},
number={7751}, journal={Nature}, publisher={Springer Science and Business Media
LLC}, author={Lindemann, Markus and Xu, Gaofeng and Pusch, Tobias and Michalzik,
Rainer and Hofmann, Martin R. and Žutić, Igor and Gerhardt, Nils Christopher},
year={2019}, pages={212–215} }'
chicago: 'Lindemann, Markus, Gaofeng Xu, Tobias Pusch, Rainer Michalzik, Martin
R. Hofmann, Igor Žutić, and Nils Christopher Gerhardt. “Ultrafast Spin-Lasers.”
Nature 568, no. 7751 (2019): 212–15. https://doi.org/10.1038/s41586-019-1073-y.'
ieee: 'M. Lindemann et al., “Ultrafast spin-lasers,” Nature, vol.
568, no. 7751, pp. 212–215, 2019, doi: 10.1038/s41586-019-1073-y.'
mla: Lindemann, Markus, et al. “Ultrafast Spin-Lasers.” Nature, vol. 568,
no. 7751, Springer Science and Business Media LLC, 2019, pp. 212–15, doi:10.1038/s41586-019-1073-y.
short: M. Lindemann, G. Xu, T. Pusch, R. Michalzik, M.R. Hofmann, I. Žutić, N.C.
Gerhardt, Nature 568 (2019) 212–215.
date_created: 2025-04-25T07:21:34Z
date_updated: 2026-02-25T14:09:49Z
department:
- _id: '977'
doi: 10.1038/s41586-019-1073-y
extern: '1'
intvolume: ' 568'
issue: '7751'
language:
- iso: eng
page: 212-215
publication: Nature
publication_identifier:
issn:
- 0028-0836
- 1476-4687
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Ultrafast spin-lasers
type: journal_article
user_id: '15911'
volume: 568
year: '2019'
...
---
_id: '64371'
author:
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Marcel
full_name: Lenz, Marcel
last_name: Lenz
- first_name: Robin
full_name: Krug, Robin
last_name: Krug
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Kirsten
full_name: Schmieder, Kirsten
last_name: Schmieder
- first_name: Christopher
full_name: Dillmann, Christopher
last_name: Dillmann
- first_name: Hubert
full_name: Welp, Hubert
last_name: Welp
citation:
ama: 'Hofmann MR, Lenz M, Krug R, et al. Brain tissue analysis using texture features
based on optical coherence tomography images. In: Optical Coherence Tomography
and Coherence Domain Optical Methods in Biomedicine XXII. ; 2018. doi:10.1117/12.2292032'
apa: Hofmann, M. R., Lenz, M., Krug, R., Gerhardt, N. C., Schmieder, K., Dillmann,
C., & Welp, H. (2018). Brain tissue analysis using texture features based
on optical coherence tomography images. Optical Coherence Tomography and Coherence
Domain Optical Methods in Biomedicine XXII. https://doi.org/10.1117/12.2292032
bibtex: '@inproceedings{Hofmann_Lenz_Krug_Gerhardt_Schmieder_Dillmann_Welp_2018,
title={Brain tissue analysis using texture features based on optical coherence
tomography images}, DOI={10.1117/12.2292032},
booktitle={Optical Coherence Tomography and Coherence Domain Optical Methods in
Biomedicine XXII}, author={Hofmann, Martin R. and Lenz, Marcel and Krug, Robin
and Gerhardt, Nils Christopher and Schmieder, Kirsten and Dillmann, Christopher
and Welp, Hubert}, year={2018} }'
chicago: Hofmann, Martin R., Marcel Lenz, Robin Krug, Nils Christopher Gerhardt,
Kirsten Schmieder, Christopher Dillmann, and Hubert Welp. “Brain Tissue Analysis
Using Texture Features Based on Optical Coherence Tomography Images.” In Optical
Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXII,
2018. https://doi.org/10.1117/12.2292032.
ieee: 'M. R. Hofmann et al., “Brain tissue analysis using texture features
based on optical coherence tomography images,” 2018, doi: 10.1117/12.2292032.'
mla: Hofmann, Martin R., et al. “Brain Tissue Analysis Using Texture Features Based
on Optical Coherence Tomography Images.” Optical Coherence Tomography and Coherence
Domain Optical Methods in Biomedicine XXII, 2018, doi:10.1117/12.2292032.
short: 'M.R. Hofmann, M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, C. Dillmann,
H. Welp, in: Optical Coherence Tomography and Coherence Domain Optical Methods
in Biomedicine XXII, 2018.'
date_created: 2026-02-20T10:04:04Z
date_updated: 2026-02-25T13:45:03Z
department:
- _id: '977'
doi: 10.1117/12.2292032
language:
- iso: eng
publication: Optical Coherence Tomography and Coherence Domain Optical Methods in
Biomedicine XXII
status: public
title: Brain tissue analysis using texture features based on optical coherence tomography
images
type: conference
user_id: '15911'
year: '2018'
...
---
_id: '64372'
author:
- first_name: Marcel
full_name: Lenz, Marcel
last_name: Lenz
- first_name: Robin
full_name: Krug, Robin
last_name: Krug
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Kirsten
full_name: Schmieder, Kirsten
last_name: Schmieder
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Christopher
full_name: Dillmann, Christopher
last_name: Dillmann
- first_name: Hubert
full_name: Welp, Hubert
last_name: Welp
citation:
ama: 'Lenz M, Krug R, Gerhardt NC, et al. Classification of brain tissue with optical
coherence tomography by employing texture analysis. In: Optics, Photonics,
and Digital Technologies for Imaging Applications V. ; 2018. doi:10.1117/12.2307701'
apa: Lenz, M., Krug, R., Gerhardt, N. C., Schmieder, K., Hofmann, M. R., Dillmann,
C., & Welp, H. (2018). Classification of brain tissue with optical coherence
tomography by employing texture analysis. Optics, Photonics, and Digital Technologies
for Imaging Applications V. https://doi.org/10.1117/12.2307701
bibtex: '@inproceedings{Lenz_Krug_Gerhardt_Schmieder_Hofmann_Dillmann_Welp_2018,
title={Classification of brain tissue with optical coherence tomography by employing
texture analysis}, DOI={10.1117/12.2307701},
booktitle={Optics, Photonics, and Digital Technologies for Imaging Applications
V}, author={Lenz, Marcel and Krug, Robin and Gerhardt, Nils Christopher and Schmieder,
Kirsten and Hofmann, Martin R. and Dillmann, Christopher and Welp, Hubert}, year={2018}
}'
chicago: Lenz, Marcel, Robin Krug, Nils Christopher Gerhardt, Kirsten Schmieder,
Martin R. Hofmann, Christopher Dillmann, and Hubert Welp. “Classification of Brain
Tissue with Optical Coherence Tomography by Employing Texture Analysis.” In Optics,
Photonics, and Digital Technologies for Imaging Applications V, 2018. https://doi.org/10.1117/12.2307701.
ieee: 'M. Lenz et al., “Classification of brain tissue with optical coherence
tomography by employing texture analysis,” 2018, doi: 10.1117/12.2307701.'
mla: Lenz, Marcel, et al. “Classification of Brain Tissue with Optical Coherence
Tomography by Employing Texture Analysis.” Optics, Photonics, and Digital Technologies
for Imaging Applications V, 2018, doi:10.1117/12.2307701.
short: 'M. Lenz, R. Krug, N.C. Gerhardt, K. Schmieder, M.R. Hofmann, C. Dillmann,
H. Welp, in: Optics, Photonics, and Digital Technologies for Imaging Applications
V, 2018.'
date_created: 2026-02-20T10:04:04Z
date_updated: 2026-02-25T13:45:18Z
department:
- _id: '977'
doi: 10.1117/12.2307701
language:
- iso: eng
publication: Optics, Photonics, and Digital Technologies for Imaging Applications
V
status: public
title: Classification of brain tissue with optical coherence tomography by employing
texture analysis
type: conference
user_id: '15911'
year: '2018'
...
---
_id: '64376'
author:
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Markus
full_name: Finkeldey, Markus
last_name: Finkeldey
- first_name: Lena
full_name: Göring, Lena
last_name: Göring
citation:
ama: 'Hofmann MR, Gerhardt NC, Finkeldey M, Göring L. Digital holography for the
investigation of buried structures with a common-path reflection microscope. In:
Practical Holography XXXII: Displays, Materials, and Applications. ; 2018.
doi:10.1117/12.2289524'
apa: 'Hofmann, M. R., Gerhardt, N. C., Finkeldey, M., & Göring, L. (2018). Digital
holography for the investigation of buried structures with a common-path reflection
microscope. Practical Holography XXXII: Displays, Materials, and Applications.
https://doi.org/10.1117/12.2289524'
bibtex: '@inproceedings{Hofmann_Gerhardt_Finkeldey_Göring_2018, title={Digital holography
for the investigation of buried structures with a common-path reflection microscope},
DOI={10.1117/12.2289524}, booktitle={Practical
Holography XXXII: Displays, Materials, and Applications}, author={Hofmann, Martin
R. and Gerhardt, Nils Christopher and Finkeldey, Markus and Göring, Lena}, year={2018}
}'
chicago: 'Hofmann, Martin R., Nils Christopher Gerhardt, Markus Finkeldey, and Lena
Göring. “Digital Holography for the Investigation of Buried Structures with a
Common-Path Reflection Microscope.” In Practical Holography XXXII: Displays,
Materials, and Applications, 2018. https://doi.org/10.1117/12.2289524.'
ieee: 'M. R. Hofmann, N. C. Gerhardt, M. Finkeldey, and L. Göring, “Digital holography
for the investigation of buried structures with a common-path reflection microscope,”
2018, doi: 10.1117/12.2289524.'
mla: 'Hofmann, Martin R., et al. “Digital Holography for the Investigation of Buried
Structures with a Common-Path Reflection Microscope.” Practical Holography
XXXII: Displays, Materials, and Applications, 2018, doi:10.1117/12.2289524.'
short: 'M.R. Hofmann, N.C. Gerhardt, M. Finkeldey, L. Göring, in: Practical Holography
XXXII: Displays, Materials, and Applications, 2018.'
date_created: 2026-02-20T10:04:04Z
date_updated: 2026-02-25T13:45:31Z
department:
- _id: '977'
doi: 10.1117/12.2289524
language:
- iso: eng
publication: 'Practical Holography XXXII: Displays, Materials, and Applications'
status: public
title: Digital holography for the investigation of buried structures with a common-path
reflection microscope
type: conference
user_id: '15911'
year: '2018'
...
---
_id: '64379'
author:
- first_name: Markus
full_name: Lindemann, Markus
last_name: Lindemann
- first_name: Nils Christopher
full_name: Gerhardt, Nils Christopher
id: '115298'
last_name: Gerhardt
orcid: 0009-0002-5538-231X
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Tobias
full_name: Pusch, Tobias
last_name: Pusch
- first_name: Rainer
full_name: Michalzik, Rainer
last_name: Michalzik
- first_name: Sebastian
full_name: Scherübl, Sebastian
last_name: Scherübl
citation:
ama: 'Lindemann M, Gerhardt NC, Hofmann MR, Pusch T, Michalzik R, Scherübl S. Thermally-induced
birefringence in VCSELs - approaching the limits. In: Semiconductor Lasers
and Laser Dynamics VIII. ; 2018. doi:10.1117/12.2306215'
apa: Lindemann, M., Gerhardt, N. C., Hofmann, M. R., Pusch, T., Michalzik, R., &
Scherübl, S. (2018). Thermally-induced birefringence in VCSELs - approaching the
limits. Semiconductor Lasers and Laser Dynamics VIII. https://doi.org/10.1117/12.2306215
bibtex: '@inproceedings{Lindemann_Gerhardt_Hofmann_Pusch_Michalzik_Scherübl_2018,
title={Thermally-induced birefringence in VCSELs - approaching the limits}, DOI={10.1117/12.2306215}, booktitle={Semiconductor
Lasers and Laser Dynamics VIII}, author={Lindemann, Markus and Gerhardt, Nils
Christopher and Hofmann, Martin R. and Pusch, Tobias and Michalzik, Rainer and
Scherübl, Sebastian}, year={2018} }'
chicago: Lindemann, Markus, Nils Christopher Gerhardt, Martin R. Hofmann, Tobias
Pusch, Rainer Michalzik, and Sebastian Scherübl. “Thermally-Induced Birefringence
in VCSELs - Approaching the Limits.” In Semiconductor Lasers and Laser Dynamics
VIII, 2018. https://doi.org/10.1117/12.2306215.
ieee: 'M. Lindemann, N. C. Gerhardt, M. R. Hofmann, T. Pusch, R. Michalzik, and
S. Scherübl, “Thermally-induced birefringence in VCSELs - approaching the limits,”
2018, doi: 10.1117/12.2306215.'
mla: Lindemann, Markus, et al. “Thermally-Induced Birefringence in VCSELs - Approaching
the Limits.” Semiconductor Lasers and Laser Dynamics VIII, 2018, doi:10.1117/12.2306215.
short: 'M. Lindemann, N.C. Gerhardt, M.R. Hofmann, T. Pusch, R. Michalzik, S. Scherübl,
in: Semiconductor Lasers and Laser Dynamics VIII, 2018.'
date_created: 2026-02-20T10:04:05Z
date_updated: 2026-02-25T13:42:52Z
department:
- _id: '977'
doi: 10.1117/12.2306215
language:
- iso: eng
publication: Semiconductor Lasers and Laser Dynamics VIII
status: public
title: Thermally-induced birefringence in VCSELs - approaching the limits
type: conference
user_id: '15911'
year: '2018'
...