Abstract
Large photorefractive two-wave mixing gain in CdZnTe:V at a 1.5-μm wavelength is demonstrated with an external dc field and a third incoherent stimulating beam of 1.3-μm wavelength. Resonant gain enhancement depending on the intensity of the incoherent illumination was observed. The maximum gain coefficient of 5.5 cm-1 is comparable with the value obtained with an ac field.
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