Abstract

The name of photonic band gap (PBG), given in 1987 by Yablonovitch to periodically ordered distributions of two dielectric materials that would exhibit a Bragg reflection band in all space directions, lead to the birth of the new field of photonic crystals.[1] Although, most of one- or three-dimension structures, such as multilayers, colloidal crystals, or opals existed prior to PBG’s, the creation of the field of photonic crystals opened a new perspective for their study. Some researchers soon recognized that the special properties of such materials offered an excellent frame to mold the nonlinear radiation-matter interaction. [2,3]

© 2001 EPS