Transient Energy Transfer during Hologram Formation in Photorefractive Crystals

Abstract

The temporal and spatial variation of the beam intensities and space charge electric field during hologram formation in a photorefractive crystal are determined by solving the relevant partial differential equations. Starting with the equations of Kukhtarev, Markov and Odulov [1], analytic and numerical solutions are presented for a range of parameters for the time evolution of the energy transfer between the optical beams, the appearance of the space charge electric field, the phase angle between the interference pattern and the space charge field, and the bending of the grating.