Theoretical investigation of off-plane propagation of electromagnetic waves in two-dimensional photonic crystals

Abstract

We study the transmission of electromagnetic waves propagating in two-dimensional photonic crystals having triangular structure. The transmission has been calculated using the transfer matrix method. We find that for dielectric constant ratios higher than 12.25, there is a full photonic band gap for both polarizations and for out-of-plane incident angle as high as 85{degree}. {copyright} {ital 1998} {ital The American Physical Society}