Abstract

We derive an analytic expression describing the intensity and field frequency dependence of photorefractive gain in two-beam coupling under an alternating square-wave electric field. We determine the frequency and intensity ranges over which the gain is maximum and time independent. Experimental results for Bi₁₂GeO₂₀ crystals are presented.

© 1989 Optical Society of America

Influence of shallow traps on the enhancement of the photorefractive grating amplitude by a high-frequency alternating electric field: a probabilistic analysis

Ivan Biaggio and Gérald Roosen
J. Opt. Soc. Am. B 13(10) 2306-2314 (1996)

Enhanced two-beam mixing gain in photorefractive GaAs using alternating electric fields

Jayant Kumar, Giovanni Albanese, William H. Steier, and Mehrdad Ziari
Opt. Lett. 12(2) 120-122 (1987)

Two-wave mixing gain in Bi₁₂SiO₂₀ with applied alternating electric fields: self-diffraction and optical activity effects

Michael A. Krainak and Frederic M. Davidson
J. Opt. Soc. Am. B 6(4) 634-638 (1989)

Effect of subharmonics on two-wave gain in Bi₁₂SiO₂₀ under alternating electric fields

A. Grunnet-Jepsen, L. Solymar, and C. H. Kwak
Opt. Lett. 19(17) 1299-1301 (1994)

Photorefractive two-beam coupling with applied radio-frequency fields: theory and experiment

Jayant Kumar, Giovanni Albanese, and William H. Steier
J. Opt. Soc. Am. B 4(7) 1079-1082 (1987)