Presentation
4 October 2022 Spin lasing in high-beta bimodal quantum dot micropillar cavities (Conference Presentation)
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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.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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