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Photorefractive response time measurement in GaAs crystals by phase modulation in two-wave mixing

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Abstract

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

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