Crystal Growth and Properties of Photorefractive Barium Titanate

Abstract

The photorefractive properties of BaTiO3 are sensitive to the powder processing and crystal growing techniques. Variations in starting materials, and growth or annealing atmosphere have been shown to significantly impact the concentration and characteristics of photorefractive charge carriers. We have addressed the optimization of the electronic structure of BaTiO3 by examining process atmosphere and melt additives with the goal to improve the photorefractive sensitivity within the visible and near infrared spectrum.