Photorefractivity in vanadium-doped ZnTe

Abstract
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.