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arXiv · 2403.07429

Dual orthogonally-polarized lasing assisted by imaginary Fermi arcs in organic microcavities

Teng Long·Jiahuan Ren·Peng Li·Feng Yun·Guillaume Malpuech·Dmitry Solnyshkov·Hongbing Fu·Feng Li·Qing Liao
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Abstract

The polarization control of micro/nano lasers is an important topic in nanophotonics. Up to now, the simultaneous generation of two distinguishable orthogonally-polarized lasing modes from a single organic microlaser remains a critical challenge. Here, we demonstrate simultaneously orthogonally-polarized dual lasing from a microcavity filled with an organic single crystal exhibiting selective strong coupling. We show that the non-Hermiticity due to polarization-dependent losses leads to the formation of real and imaginary Fermi arcs with exceptional points. Simultaneous orthogonally-polarized lasing becomes possible thanks to the eigenstate mixing by the photonic spin-orbit coupling at the imaginary Fermi arcs. Our work provides a novel way to develop linearly-polarized lasers and paves the way for the future fundamental research in topological photonics, non-Hermitian optics, and other fields.

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Teng Long, Jiahuan Ren, Peng Li, Feng Yun, Guillaume Malpuech, Dmitry Solnyshkov, Hongbing Fu, Feng Li, Qing Liao. 2024-03-12. Dual orthogonally-polarized lasing assisted by imaginary Fermi arcs in organic microcavities. https://arxiv.org/abs/2403.07429

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