We describe a new method for photorefractive response time measurement in fast photorefractive crystals based on continuous phase modulation in two-wave mixing. We report experimental results for undoped semi-insulating GaAs that are in good agreement with theory. Values obtained for the response time and photoelectron generation quantum efficiency are consistent with previously published data.
© 1994 Optical Society of America
Original Manuscript: February 10, 1994
Published: November 1, 1994
Shaoping Bian and Jaime Frejlich, "Photorefractive response time measurement in GaAs crystals by phase modulation in two-wave mixing," Opt. Lett. 19, 1702-1704 (1994)