16th International Conference on Optical MEMS and Nanophotonics, OMN2011, İstanbul, Turkey, 8 - 11 August 2011, pp.219-220
Conference Paper / Full Text
Photonic crystals, diffraction free beams, Bessel beams, annular photonic crystals
TED University Affiliated:
We propose a two-dimensional photonic crystal structure for the creation of quasi-Bessel beam. The working frequency is selected to be in the second band edge and the optimization of the rod position at the tip of the structure creates quasi-Bessel beam that is dramatically resistive to spatial spreading over a long propagation distance. © 2011 IEEE.