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4 October 2022 Spin lasing in high-beta bimodal quantum dot micropillar cavities (Conference Presentation)
Niels Heermeier, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy, Markus Lindemann, Nils C. Gerhardt, Martin R Hofmann, Stephan Reitzenstein
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Proceedings Volume PC12205, Spintronics XV; PC1220511 (2022) https://doi.org/10.1117/12.2632687
Event: SPIE Nanoscience + Engineering, 2022, 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-oscillation frequency can be engineered via the pillar cross-section. The microlasers show very pronounced spin-lasing effects with polarization oscillation frequencies up to 15 GHz.
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Niels Heermeier, Tobias Heuser, Jan Große, Natalie Jung, Arsenty Kaganskiy, Markus Lindemann, Nils C. Gerhardt, Martin R Hofmann, and Stephan Reitzenstein "Spin lasing in high-beta bimodal quantum dot micropillar cavities (Conference Presentation)", Proc. SPIE PC12205, Spintronics XV, PC1220511 (4 October 2022); https://doi.org/10.1117/12.2632687
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KEYWORDS
Quantum dots
Polarization
Light-matter interactions
Optical microcavities
Photon polarization
Photonic devices
Semiconductor lasers
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