We investigate the spin behavior of the first excited state of a polariton condensate in an optical trap by means of polarization resolved spectroscopy. The interplay between the repulsive polariton interactions and the gain saturation results in a nontrivial spontaneous switching between the two quasidegenerate spatial modes of the polariton condensate. As a result, the polarization pattern of the emitted light dramatically changes. Successful harnessing of this effect can lead to a spin-demultiplexing device for polariton-based optical integrated circuits.
CITATION STYLE
Askitopoulos, A., Nalitov, A. V., Sedov, E. S., Pickup, L., Cherotchenko, E. D., Hatzopoulos, Z., … Lagoudakis, P. G. (2018). All-optical quantum fluid spin beam splitter. Physical Review B, 97(23). https://doi.org/10.1103/PhysRevB.97.235303
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