Photonic band gap in the triangular lattice of Bose-Einstein-condensate vortices

Tasgin M. E. , Muestecaplioglu O. E. , Oktel M. O.

PHYSICAL REVIEW A, cilt.75, 2007 (SCI İndekslerine Giren Dergi) identifier identifier


We investigate the photonic bands of an atomic Bose-Einstein condensate with a triangular vortex lattice. Index contrast between the vortex cores and the bulk of the condensate is achieved through the enhancement of the index via atomic coherence. The frequency-dependent dielectric function is used in the calculations of the bands, resulting in photonic band gap widths of a few megahertz.