All-optical quantum fluid spin beam splitter

A. Askitopoulos, A. V. Nalitov, E. S. Sedov, L. Pickup, E. D. Cherotchenko, Z. Hatzopoulos, P. G. Savvidis, A. V. Kavokin, P. G. Lagoudakis

    Research output: Contribution to journalArticlepeer-review

    20 Citations (Scopus)


    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.

    Original languageEnglish
    Article number235303
    JournalPhysical Review B
    Issue number23
    Publication statusPublished - 6 Jun 2018


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