Towards spin turbulence of light: Spontaneous disorder and chaos in cavity-polariton systems

Article

关键词: BOSE-EINSTEIN CONDENSATION;    SEMICONDUCTOR MICROCAVITIES;    EXCITON POLARITONS;    MULTISTABILITY;    OSCILLATIONS;    SCATTERING;   

DOI  :  10.1103/PhysRevB.94.195310

来源: SCIE

【 摘 要 】

Recent advances in nanophotonics have brought about coherent light sources with chaotic circular polarization; a low-dimensional chaotic evolution of optical spin was evidenced in laser diodes. Here we propose a mechanism that gives rise to light with a spatiotemporal spin chaos resembling turbulent states in hydrodynamics. The spin-chaotic radiation is emitted by exciton polaritons under resonant optical pumping in arbitrarily sized planar microcavities, including, as a limiting case, pointlike systems with only three degrees of freedom. The underlying mechanism originates in the interplay between spin symmetry breakdown and scattering into pairs of Bogolyubov excitations. As a practical matter, it opens up the way for spin modulation of light on the scale of picoseconds and micrometers.

【 授权许可】

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