Observation of the photorefractive effect in single-domain BaTiO3 crystal fibera)

Abstract

Photorefractive effects are, for the first time to our knowledge, observed in single-domain tetragonal BaTiO3 fibers fabricated by the laser pedestal method. The diameter and length of the fiber are 250 μm and 2 mm, respectively. The photorefractivity is confirmed both by beam amplification through two-wave mixing and holographic image storage.