Growth of Bi12geO20 (BGO): influence of stoichiometry and doping elements on photorefractive parameters

Abstract

Photorefractive materials have been great potential in applications such as phase conjugation, optical data processing, image amplification and laser beam steering. The purpose of this communication is to show that crystals of different batchs-nominally pure and doped-may have different characteristics thus leading to significant variations in the photorefractive properties. The influence of the crystal growth conditions was recognized in early experiments of phase conjugaison based on degenerates four wave mixing in BGO.