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Conferences > PMED > 1990 > A > A8

Direct measurements of charge carrier mobilities in photorefractive sillenite crystals

G. Pauliat, A. Villing, J.C. Launay, and G. Roosen

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Abstract

The charge carrier mobility*recombination time product (μτ) is an important photorefractive parameter. In the band transport model [1], this product is one of the three crystal parameters (with Na the deep trap density and τdi the dielectric recombination time) which govern the kinetics of the photorefractive effect. Usual photorefractive measurements of μτ are lengthy and give uncertain results for some samples in which the band transport model is not detained enough to completly describe the photorefractive effect.

© 1990 Optical Society of America

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