Taşgin, M. E.Müstecaplioǧlu Ö. E.Oktel, M. Ö.2016-02-082016-02-08200710502947http://hdl.handle.net/11693/23438We 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. © 2007 The American Physical Society.EnglishDielectric materialsElectronic structureNatural frequenciesPhotonic band gapAtomic coherenceDielectric functionVortex latticesBose-Einstein condensationArticle10.1103/PhysRevA.75.063627