Abstract

During the last years nonlinear optical phenomena in photonic crystals have been of a growing interest. A multiyear periodic structure (photonic band gap structure (PBG)) is an example of a one-dimensional photonic crystal and is characterized by the existence of forbidden frequencies where total Bragg reflection occurs. Recently, it was shown theoretically [1] and experimentally [2] that the enhancement of the second-harmonic signal in PBG structure can be determined by the increasing of the density of electromagnetic field modes within the structure when the frequency of fundamental field is near the photonic band edge.

© 2000 IEEE