In the presence of Rashba-Dresselhaus coupling, strong spin-orbit interactions in liquid crystal optical cavities result in a distinctive spin-split entangled dispersion. Spin coherence between such modes give rise to an optical persistent-spin-helix. In this letter, we introduce optical gain in such a system, by dispersing a molecular dye in a liquid-crystal microcavity. We demonstrate both lasing in the Rashba-Dresselhaus regime and the emergence of an optical persistent spin helix.
@article{arxiv.2109.07338,
title = {Lasing in the Rashba-Dresselhaus spin-orbit coupling regime in a dye-filled liquid crystal optical microcavity},
author = {Marcin Muszyński and Mateusz Król and Katarzyna Rechcińska and Przemysław Oliwa and Mateusz Kędziora and Rafał Mazur and Przemysław Morawiak and Wiktor Piecek and Przemysław Kula and Pavlos Lagoudakis and Barbara Piętka and Jacek Szczytko},
journal= {arXiv preprint arXiv:2109.07338},
year = {2021}
}