We report on the observation of photorefractivity in vanadium-doped zinc telluride in the 0.63–1.3-μm-wavelength range. Photorefractive two-beam coupling, along with photoluminescence and absorption spectroscopy, are used to characterize a vapor-phase transfer-grown crystal. At 0.63 μm, we measure a grating-formation time of 15 μs at an intensity of 4.7 W/cm2, which is comparable to GaAs at 1.06 μm, and is faster than photorefractive cubic and ferroelectric oxides.
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Ziari et al. (1992) studied this question.
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