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Dislocation density-dependent photorefractive effect in (001)-cut GaAs


, : Dislocation density-dependent photorefractive effect in (001)-cut GaAs. Optics Letters 19(23): 1946-1948

We present studies of the photorefractive effect in nonphotorefractive orientations of liquid-encapsulated Czochralski-grown GaAs crystals. Picosecond diffraction experiments conducted in different samples show that a forbidden photorefractive signal correlates well with dislocation density, which points out that the effect arises from strain fields and growth defects.

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PMID: 19855704


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