Frequency tuning of polarization oscillations: Toward high-speed spin-lasers
M. Lindemann, T. Pusch, R. Michalzik, N.C. Gerhardt, M.R. Hofmann, Applied Physics Letters 108 (2016).
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Journal Article
| Published
| English
Author
Lindemann, Markus;
Pusch, Tobias;
Michalzik, Rainer;
Gerhardt, Nils ChristopherLibreCat 
;
Hofmann, Martin R.
;
Hofmann, Martin R.Abstract
Spin-controlled vertical-cavity surface-emitting lasers (spin-VCSELs) offer a high potential to overcome several limitations of conventional purely charged-based laser devices. Presumably, the highest potential of spin-VCSELs lies in their ultrafast spin and polarization dynamics, which can be significantly faster than the intensity dynamics in conventional devices. Here, we experimentally demonstrate polarization oscillations in spin-VCSELs with frequencies up to 44 GHz. The results show that the oscillation frequency mainly depends on the cavity birefringence, which can be tuned by applying mechanical strain to the VCSEL structure. A tuning range of about 34 GHz is demonstrated. By measuring the polarization oscillation frequency and the birefringence governed mode splitting as a function of the applied strain simultaneously, we are able to investigate the correlation between birefringence and polarization oscillations in detail. The experimental findings are compared to numerical calculations based on the spin-flip model.
Publishing Year
Journal Title
Applied Physics Letters
Volume
108
Issue
4
LibreCat-ID
Cite this
Lindemann M, Pusch T, Michalzik R, Gerhardt NC, Hofmann MR. Frequency tuning of polarization oscillations: Toward high-speed spin-lasers. Applied Physics Letters. 2016;108(4). doi:10.1063/1.4940713
Lindemann, M., Pusch, T., Michalzik, R., Gerhardt, N. C., & Hofmann, M. R. (2016). Frequency tuning of polarization oscillations: Toward high-speed spin-lasers. Applied Physics Letters, 108(4). https://doi.org/10.1063/1.4940713
@article{Lindemann_Pusch_Michalzik_Gerhardt_Hofmann_2016, title={Frequency tuning of polarization oscillations: Toward high-speed spin-lasers}, volume={108}, DOI={10.1063/1.4940713}, number={4}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Lindemann, Markus and Pusch, Tobias and Michalzik, Rainer and Gerhardt, Nils Christopher and Hofmann, Martin R.}, year={2016} }
Lindemann, Markus, Tobias Pusch, Rainer Michalzik, Nils Christopher Gerhardt, and Martin R. Hofmann. “Frequency Tuning of Polarization Oscillations: Toward High-Speed Spin-Lasers.” Applied Physics Letters 108, no. 4 (2016). https://doi.org/10.1063/1.4940713.
M. Lindemann, T. Pusch, R. Michalzik, N. C. Gerhardt, and M. R. Hofmann, “Frequency tuning of polarization oscillations: Toward high-speed spin-lasers,” Applied Physics Letters, vol. 108, no. 4, 2016, doi: 10.1063/1.4940713.
Lindemann, Markus, et al. “Frequency Tuning of Polarization Oscillations: Toward High-Speed Spin-Lasers.” Applied Physics Letters, vol. 108, no. 4, AIP Publishing, 2016, doi:10.1063/1.4940713.
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