Spin lasing in bimodal quantum dot micropillar cavities

Tobias Heuser; Niels Heermeier; Jan Große; Natalie Jung; Markus Lindemann; Nils Gerhardt; Martin Hofmann; Stephan Reitzenstein

doi:10.1117/12.2596029

1 August 2021 Spin lasing in bimodal quantum dot micropillar cavities

Tobias Heuser, Niels Heermeier, Jan Große, Natalie Jung, Markus Lindemann, Nils Gerhardt, Martin Hofmann, Stephan Reitzenstein

Author Affiliations +

Proceedings Volume 11805, Spintronics XIV; 1180513 (2021) https://doi.org/10.1117/12.2596029
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Spin-controlled lasers are highly interesting photonic devices and have been shown to provide ultra-fast polarization dynamics in excess of 200 GHz. Another class of modern semiconductor lasers are high-beta emitters which benefit from enhanced light-matter interaction due to strong mode confinement in low-mode-volume microcavities. We combine the advantages of both laser types to demonstrate spin-lasing in high-beta microlasers for the first time. For this purpose, we realize bimodal high-beta quantum dot micropillar lasers for which the mode splitting and the polarization-oszillation frequency can be engineered via the pillar cross-section. The microlasers show very pronounced spin-lasing effects with polarization oscillation frequencies up to 16 GHz.

Conference Presentation

Citation Download Citation

Tobias Heuser, Niels Heermeier, Jan Große, Natalie Jung, Markus Lindemann, Nils Gerhardt, Martin Hofmann, and Stephan Reitzenstein "Spin lasing in bimodal quantum dot micropillar cavities", Proc. SPIE 11805, Spintronics XIV, 1180513 (1 August 2021); https://doi.org/10.1117/12.2596029

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