---
_id: '59663'
abstract:
- lang: eng
text: Controlling the intensity of emitted light and charge current is the basis
of transferring and processing information1. By contrast, robust information storage
and magnetic random-access memories are implemented using the spin of the carrier
and the associated magnetization in ferromagnets2. The missing link between the
respective disciplines of photonics, electronics and spintronics is to modulate
the circular polarization of the emitted light, rather than its intensity, by
electrically controlled magnetization. Here we demonstrate that this missing link
is established at room temperature and zero applied magnetic field in light-emitting
diodes2,3,4,5,6,7, through the transfer of angular momentum between photons, electrons
and ferromagnets. With spin–orbit torque8,9,10,11, a charge current generates
also a spin current to electrically switch the magnetization. This switching determines
the spin orientation of injected carriers into semiconductors, in which the transfer
of angular momentum from the electron spin to photon controls the circular polarization
of the emitted light2. The spin–photon conversion with the nonvolatile control
of magnetization opens paths to seamlessly integrate information transfer, processing
and storage. Our results provide substantial advances towards electrically controlled
ultrafast modulation of circular polarization and spin injection with magnetization
dynamics for the next-generation information and communication technology12, including
space–light data transfer. The same operating principle in scaled-down structures
or using two-dimensional materials will enable transformative opportunities for
quantum information processing with spin-controlled single-photon sources, as
well as for implementing spin-dependent time-resolved spectroscopies.
article_type: original
author:
- first_name: Pambiang Abel
full_name: Dainone, Pambiang Abel
last_name: Dainone
- first_name: Nicholas Figueiredo
full_name: Prestes, Nicholas Figueiredo
last_name: Prestes
- first_name: Pierre
full_name: Renucci, Pierre
last_name: Renucci
- first_name: Alexandre
full_name: Bouché, Alexandre
last_name: Bouché
- first_name: Martina
full_name: Morassi, Martina
last_name: Morassi
- first_name: Xavier
full_name: Devaux, Xavier
last_name: Devaux
- first_name: Markus
full_name: Lindemann, Markus
last_name: Lindemann
- first_name: Jean-Marie
full_name: George, Jean-Marie
last_name: George
- first_name: Henri
full_name: Jaffrès, Henri
last_name: Jaffrès
- first_name: Aristide
full_name: Lemaitre, Aristide
last_name: Lemaitre
- first_name: Bo
full_name: Xu, Bo
last_name: Xu
- first_name: Mathieu
full_name: Stoffel, Mathieu
last_name: Stoffel
- first_name: Tongxin
full_name: Chen, Tongxin
last_name: Chen
- first_name: Laurent
full_name: Lombez, Laurent
last_name: Lombez
- first_name: Delphine
full_name: Lagarde, Delphine
last_name: Lagarde
- first_name: Guangwei
full_name: Cong, Guangwei
last_name: Cong
- first_name: Tianyi
full_name: Ma, Tianyi
last_name: Ma
- first_name: Philippe
full_name: Pigeat, Philippe
last_name: Pigeat
- first_name: Michel
full_name: Vergnat, Michel
last_name: Vergnat
- first_name: Hervé
full_name: Rinnert, Hervé
last_name: Rinnert
- first_name: Xavier
full_name: Marie, Xavier
last_name: Marie
- first_name: Xiufeng
full_name: Han, Xiufeng
last_name: Han
- first_name: Stephane
full_name: Mangin, Stephane
last_name: Mangin
- first_name: Juan-Carlos
full_name: Rojas-Sánchez, Juan-Carlos
last_name: Rojas-Sánchez
- first_name: Jian-Ping
full_name: Wang, Jian-Ping
last_name: Wang
- first_name: Matthew C.
full_name: Beard, Matthew C.
last_name: Beard
- 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: Yuan
full_name: Lu, Yuan
last_name: Lu
citation:
ama: Dainone PA, Prestes NF, Renucci P, et al. Controlling the helicity of light
by electrical magnetization switching. Nature. 2024;627(8005):783-788.
doi:10.1038/s41586-024-07125-5
apa: Dainone, P. A., Prestes, N. F., Renucci, P., Bouché, A., Morassi, M., Devaux,
X., Lindemann, M., George, J.-M., Jaffrès, H., Lemaitre, A., Xu, B., Stoffel,
M., Chen, T., Lombez, L., Lagarde, D., Cong, G., Ma, T., Pigeat, P., Vergnat,
M., … Lu, Y. (2024). Controlling the helicity of light by electrical magnetization
switching. Nature, 627(8005), 783–788. https://doi.org/10.1038/s41586-024-07125-5
bibtex: '@article{Dainone_Prestes_Renucci_Bouché_Morassi_Devaux_Lindemann_George_Jaffrès_Lemaitre_et
al._2024, title={Controlling the helicity of light by electrical magnetization
switching}, volume={627}, DOI={10.1038/s41586-024-07125-5},
number={8005}, journal={Nature}, publisher={Springer Science and Business Media
LLC}, author={Dainone, Pambiang Abel and Prestes, Nicholas Figueiredo and Renucci,
Pierre and Bouché, Alexandre and Morassi, Martina and Devaux, Xavier and Lindemann,
Markus and George, Jean-Marie and Jaffrès, Henri and Lemaitre, Aristide and et
al.}, year={2024}, pages={783–788} }'
chicago: 'Dainone, Pambiang Abel, Nicholas Figueiredo Prestes, Pierre Renucci, Alexandre
Bouché, Martina Morassi, Xavier Devaux, Markus Lindemann, et al. “Controlling
the Helicity of Light by Electrical Magnetization Switching.” Nature 627,
no. 8005 (2024): 783–88. https://doi.org/10.1038/s41586-024-07125-5.'
ieee: 'P. A. Dainone et al., “Controlling the helicity of light by electrical
magnetization switching,” Nature, vol. 627, no. 8005, pp. 783–788, 2024,
doi: 10.1038/s41586-024-07125-5.'
mla: Dainone, Pambiang Abel, et al. “Controlling the Helicity of Light by Electrical
Magnetization Switching.” Nature, vol. 627, no. 8005, Springer Science
and Business Media LLC, 2024, pp. 783–88, doi:10.1038/s41586-024-07125-5.
short: P.A. Dainone, N.F. Prestes, P. Renucci, A. Bouché, M. Morassi, X. Devaux,
M. Lindemann, J.-M. George, H. Jaffrès, A. Lemaitre, B. Xu, M. Stoffel, T. Chen,
L. Lombez, D. Lagarde, G. Cong, T. Ma, P. Pigeat, M. Vergnat, H. Rinnert, X. Marie,
X. Han, S. Mangin, J.-C. Rojas-Sánchez, J.-P. Wang, M.C. Beard, N.C. Gerhardt,
I. Žutić, Y. Lu, Nature 627 (2024) 783–788.
date_created: 2025-04-23T13:27:27Z
date_updated: 2026-02-25T14:10:20Z
department:
- _id: '977'
doi: 10.1038/s41586-024-07125-5
extern: '1'
intvolume: ' 627'
issue: '8005'
keyword:
- Lasers
- LEDs and light sources
- Spintronics
language:
- iso: eng
page: 783-788
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: Controlling the helicity of light by electrical magnetization switching
type: journal_article
user_id: '15911'
volume: 627
year: '2024'
...
---
_id: '59666'
abstract:
- lang: eng
text: AbstractSpin‐controlled lasers are highly
interesting photonic devices and have been shown to provide ultrafast polarization
dynamics in excess of 200 GHz. In contrast to conventional semiconductor lasers
their temporal properties are not limited by the intensity dynamics, but are governed
primarily by the interaction of the spin dynamics with the birefringent mode splitting
that determines the polarization oscillation frequency. Another class of modern
semiconductor lasers are high‐β emitters, which benefit
from enhanced light–matter interaction due to strong mode confinement in low‐mode‐volume
microcavities. In such structures, the emission properties can be tailored by
the resonator geometry to realize for instance bimodal emission behavior in slightly
elliptical micropillar cavities. This attractive feature is utilized to demonstrate
and explore spin‐lasing effects in bimodal high‐β quantum
dot micropillar lasers. The studied microlasers with a β‐factor
of 4% show spin‐laser effects with experimental polarization oscillation frequencies
up to 15 GHz and predicted frequencies up to about 100 GHz, which are controlled
by the ellipticity of the resonator. These results reveal appealing prospects
for very compact, ultrafast, and energy‐efficient spin‐lasers and can pave the
way for future purely electrically injected spin‐lasers enabled by short injection
path lengths.
article_type: original
author:
- first_name: Niels
full_name: Heermeier, Niels
last_name: Heermeier
- first_name: Tobias
full_name: Heuser, Tobias
last_name: Heuser
- first_name: Jan
full_name: Große, Jan
last_name: Große
- first_name: Natalie
full_name: Jung, Natalie
last_name: Jung
- first_name: Arsenty
full_name: Kaganskiy, Arsenty
last_name: Kaganskiy
- first_name: Markus
full_name: Lindemann, Markus
last_name: Lindemann
- first_name: Nils C.
full_name: Gerhardt, Nils C.
last_name: Gerhardt
- first_name: Martin R.
full_name: Hofmann, Martin R.
last_name: Hofmann
- first_name: Stephan
full_name: Reitzenstein, Stephan
last_name: Reitzenstein
citation:
ama: Heermeier N, Heuser T, Große J, et al. Spin‐Lasing in Bimodal Quantum Dot Micropillar
Cavities. Laser & Photonics Reviews. 2022;16(4). doi:10.1002/lpor.202100585
apa: Heermeier, N., Heuser, T., Große, J., Jung, N., Kaganskiy, A., Lindemann, M.,
Gerhardt, N. C., Hofmann, M. R., & Reitzenstein, S. (2022). Spin‐Lasing in
Bimodal Quantum Dot Micropillar Cavities. Laser & Photonics Reviews,
16(4). https://doi.org/10.1002/lpor.202100585
bibtex: '@article{Heermeier_Heuser_Große_Jung_Kaganskiy_Lindemann_Gerhardt_Hofmann_Reitzenstein_2022,
title={Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities}, volume={16},
DOI={10.1002/lpor.202100585},
number={4}, journal={Laser & Photonics Reviews}, publisher={Wiley}, author={Heermeier,
Niels and Heuser, Tobias and Große, Jan and Jung, Natalie and Kaganskiy, Arsenty
and Lindemann, Markus and Gerhardt, Nils C. and Hofmann, Martin R. and Reitzenstein,
Stephan}, year={2022} }'
chicago: Heermeier, Niels, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy,
Markus Lindemann, Nils C. Gerhardt, Martin R. Hofmann, and Stephan Reitzenstein.
“Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.” Laser &
Photonics Reviews 16, no. 4 (2022). https://doi.org/10.1002/lpor.202100585.
ieee: 'N. Heermeier et al., “Spin‐Lasing in Bimodal Quantum Dot Micropillar
Cavities,” Laser & Photonics Reviews, vol. 16, no. 4, 2022, doi:
10.1002/lpor.202100585.'
mla: Heermeier, Niels, et al. “Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities.”
Laser & Photonics Reviews, vol. 16, no. 4, Wiley, 2022, doi:10.1002/lpor.202100585.
short: N. Heermeier, T. Heuser, J. Große, N. Jung, A. Kaganskiy, M. Lindemann, N.C.
Gerhardt, M.R. Hofmann, S. Reitzenstein, Laser & Photonics Reviews 16
(2022).
date_created: 2025-04-24T06:22:06Z
date_updated: 2026-02-25T09:38:52Z
doi: 10.1002/lpor.202100585
intvolume: ' 16'
issue: '4'
keyword:
- bimodal micropillar cavities
- cavity quantum electrodynamics
- micro- lasers
- quantum dots
- spin-lasers
language:
- iso: eng
publication: Laser & Photonics Reviews
publication_identifier:
issn:
- 1863-8880
- 1863-8899
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Spin‐Lasing in Bimodal Quantum Dot Micropillar Cavities
type: journal_article
user_id: '15911'
volume: 16
year: '2022'
...
---
_id: '29204'
abstract:
- lang: eng
text: 'An analysis of an optical Nyquist pulse synthesizer using Mach-Zehnder modulators
is presented. The analysis allows to predict the upper limit of the effective
number of bits of this type of photonic digital-to-analog converter. The analytical
solution has been verified by means of electro-optic simulations. With this analysis
the limiting factor for certain scenarios: relative intensity noise, distortions
by driving the Mach-Zehnder modulator, or the signal generator phase noise can
quickly be identified.'
author:
- first_name: Christian
full_name: Kress, Christian
id: '13256'
last_name: Kress
- first_name: Meysam
full_name: Bahmanian, Meysam
id: '69233'
last_name: Bahmanian
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: https://orcid.org/0000-0002-5950-6618
citation:
ama: Kress C, Bahmanian M, Schwabe T, Scheytt JC. Analysis of the effects of jitter,
relative intensity noise, and nonlinearity on a photonic digital-to-analog converter
based on optical Nyquist pulse synthesis. Opt Express. 2021;29(15):23671–23681.
doi:10.1364/OE.427424
apa: Kress, C., Bahmanian, M., Schwabe, T., & Scheytt, J. C. (2021). Analysis
of the effects of jitter, relative intensity noise, and nonlinearity on a photonic
digital-to-analog converter based on optical Nyquist pulse synthesis. Opt.
Express, 29(15), 23671–23681. https://doi.org/10.1364/OE.427424
bibtex: '@article{Kress_Bahmanian_Schwabe_Scheytt_2021, title={Analysis of the effects
of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog
converter based on optical Nyquist pulse synthesis}, volume={29}, DOI={10.1364/OE.427424},
number={15}, journal={Opt. Express}, publisher={OSA}, author={Kress, Christian
and Bahmanian, Meysam and Schwabe, Tobias and Scheytt, J. Christoph}, year={2021},
pages={23671–23681} }'
chicago: 'Kress, Christian, Meysam Bahmanian, Tobias Schwabe, and J. Christoph Scheytt.
“Analysis of the Effects of Jitter, Relative Intensity Noise, and Nonlinearity
on a Photonic Digital-to-Analog Converter Based on Optical Nyquist Pulse Synthesis.”
Opt. Express 29, no. 15 (2021): 23671–23681. https://doi.org/10.1364/OE.427424.'
ieee: 'C. Kress, M. Bahmanian, T. Schwabe, and J. C. Scheytt, “Analysis of the effects
of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog
converter based on optical Nyquist pulse synthesis,” Opt. Express, vol.
29, no. 15, pp. 23671–23681, 2021, doi: 10.1364/OE.427424.'
mla: Kress, Christian, et al. “Analysis of the Effects of Jitter, Relative Intensity
Noise, and Nonlinearity on a Photonic Digital-to-Analog Converter Based on Optical
Nyquist Pulse Synthesis.” Opt. Express, vol. 29, no. 15, OSA, 2021, pp.
23671–23681, doi:10.1364/OE.427424.
short: C. Kress, M. Bahmanian, T. Schwabe, J.C. Scheytt, Opt. Express 29 (2021)
23671–23681.
date_created: 2022-01-10T11:51:47Z
date_updated: 2023-06-16T06:56:27Z
department:
- _id: '58'
- _id: '230'
doi: 10.1364/OE.427424
intvolume: ' 29'
issue: '15'
keyword:
- Analog to digital converters
- Diode lasers
- Laser sources
- Phase noise
- Signal processing
- Wavelength division multiplexers
language:
- iso: eng
page: 23671–23681
project:
- _id: '302'
grant_number: '403154102'
name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC'
- _id: '299'
grant_number: 13N14882
name: 'NyPhE: NyPhE - Nyquist Silicon Photonics Engine'
publication: Opt. Express
publisher: OSA
related_material:
link:
- relation: confirmation
url: https://pubmed.ncbi.nlm.nih.gov/34614628/
status: public
title: Analysis of the effects of jitter, relative intensity noise, and nonlinearity
on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis
type: journal_article
user_id: '13256'
volume: 29
year: '2021'
...
---
_id: '6543'
abstract:
- lang: eng
text: Up to 400 mW of near-IR (1370-1500 nm) femtosecond pulses are generated from
an optical parametric amplifier directly driven by a Yb:fiber oscillator delivering
100\&\#x00A0;fs pulses at 1036 nm. The process is seeded by a stable supercontinuum
obtained from a photonic crystal fiber. We use a single pass through a 3 mm, magnesium
oxide-doped, periodically poled LiNbO3 downconversion crystal to produce a near-IR
pulse train with a remarkable power stability of 1.4 % (RMS) during one hour.
Tuning is achieved by the temperature and the poling period of the nonlinear crystal.
article_type: original
author:
- first_name: J.
full_name: Mundry, J.
last_name: Mundry
- first_name: J.
full_name: Lohrenz, J.
last_name: Lohrenz
- first_name: M.
full_name: Betz, M.
last_name: Betz
citation:
ama: Mundry J, Lohrenz J, Betz M. Tunable femtosecond near-IR source by pumping
an OPA directly with a 90 MHz Yb:fiber source. Applied Optics. 2017;56(11):3104-3108.
doi:10.1364/AO.56.003104
apa: Mundry, J., Lohrenz, J., & Betz, M. (2017). Tunable femtosecond near-IR
source by pumping an OPA directly with a 90 MHz Yb:fiber source. Applied Optics,
56(11), 3104–3108. https://doi.org/10.1364/AO.56.003104
bibtex: '@article{Mundry_Lohrenz_Betz_2017, title={Tunable femtosecond near-IR source
by pumping an OPA directly with a 90 MHz Yb:fiber source}, volume={56}, DOI={10.1364/AO.56.003104}, number={11},
journal={Applied Optics}, publisher={OSA}, author={Mundry, J. and Lohrenz, J.
and Betz, M.}, year={2017}, pages={3104–3108} }'
chicago: 'Mundry, J., J. Lohrenz, and M. Betz. “Tunable Femtosecond Near-IR Source
by Pumping an OPA Directly with a 90 MHz Yb:Fiber Source.” Applied Optics
56, no. 11 (2017): 3104–8. https://doi.org/10.1364/AO.56.003104.'
ieee: J. Mundry, J. Lohrenz, and M. Betz, “Tunable femtosecond near-IR source by
pumping an OPA directly with a 90 MHz Yb:fiber source,” Applied Optics,
vol. 56, no. 11, pp. 3104–3108, 2017.
mla: Mundry, J., et al. “Tunable Femtosecond Near-IR Source by Pumping an OPA Directly
with a 90 MHz Yb:Fiber Source.” Applied Optics, vol. 56, no. 11, OSA, 2017,
pp. 3104–08, doi:10.1364/AO.56.003104.
short: J. Mundry, J. Lohrenz, M. Betz, Applied Optics 56 (2017) 3104–3108.
date_created: 2019-01-09T10:06:44Z
date_updated: 2022-01-06T07:03:11Z
department:
- _id: '230'
doi: 10.1364/AO.56.003104
intvolume: ' 56'
issue: '11'
keyword:
- Infrared and far-infrared lasers
- Ultrafast lasers
- Nonlinear optics
- parametric processes
- Parametric oscillators and amplifiers
- Femtosecond pulses
- Fiber lasers
- Fused silica
- Laser systems
- Photonic crystal fibers
- Pulse propagation
language:
- iso: eng
page: 3104-3108
project:
- _id: '53'
name: TRR 142
- _id: '54'
name: TRR 142 - Project Area A
- _id: '58'
name: TRR 142 - Subproject A1
publication: Applied Optics
publisher: OSA
status: public
title: Tunable femtosecond near-IR source by pumping an OPA directly with a 90 MHz
Yb:fiber source
type: journal_article
user_id: '49428'
volume: 56
year: '2017'
...