Abstract
A series of vanadium-doped lithium niobate crystals was grown and their photorefractive properties were investigated with a 532 nm laser. At a total light intensity of , a short response time of only 0.57 s was achieved for 0.1 mol.% vanadium in . The photorefractive process is dominated by the diffusion field instead of the photovoltaic field. The dominant charge carriers are electrons. The possible mechanism for the fast photorefractive response is discussed.
©2012 Optical Society of America
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