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

5 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


Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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), [235303].