• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

Excitons in cores of exciton-polariton vortices

Physical Review B: Condensed Matter and Materials Physics. 2012. Vol. B 86. No. 19. P. 195305-1 -195305-7.
Lozovik Y., Voronova N. S.
The inner structure of vortices in Bose-Einstein condensates of exciton polaritons is studied theoretically. We show analytically that the healing lengths for the exciton and photon components of exciton-polariton condensate are essentially different. Namely, the exciton healing lengthmay be about two orders ofmagnitude smaller than the photon healing length. Experimentally, in near-field photoluminescence, the photon part of the exciton-polariton condensate is detected. The suggested theory shows that the cores of experimentally observed vortices are photon cores, and there could be thousands of unobserved exciton polaritons with a strongly reduced photonic fraction inside them.