Lasing in the Rashba-Dresselhaus spin-orbit coupling regime in a\n dye-filled liquid crystal optical microcavity

2021/09/15 by Marcin Muszyński, Mateusz Król, Muszyński, Marcin +21
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Mechanical and Optical Resonators #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Optics (physics.optics) #Quantum optics and atomic interactions #Strong Light-Matter Interactions

paper · pdf · doi:10.48550/arxiv.2109.07338

openalex publication_date 2021/09/15 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

In the presence of Rashba-Dresselhaus coupling, strong spin-orbit\ninteractions in liquid crystal optical cavities result in a distinctive\nspin-split entangled dispersion. Spin coherence between such modes give rise to\nan optical persistent-spin-helix. In this letter, we introduce optical gain in\nsuch a system, by dispersing a molecular dye in a liquid-crystal microcavity.\nWe demonstrate both lasing in the Rashba-Dresselhaus regime and the emergence\nof an optical persistent spin helix.\n

Citations

• Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
• Band structure engineering and non-equilibrium dynamics in Floquet topological insulators

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