1 August 1995 Temperature dependence of steady-state Bragg diffraction in a Ce:Fe:LiNbO3 photorefractive crystal
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Abstract
Steady-state Bragg diffraction (nondegenerate four-wave mixing) in a Ce:Fe:LiNbO3 photorefractive crystal as a function of the crystal temperature is described. We have shown that an efficient steady-state frequency-varied conjugate wave (FVCW) can be generated at an elevated crystal temperature of about 120°C, at which a tenfold increase in the steady-state FVCW intensity is observed compared with that at room temperature (20°C). We have found that the temperature dependency is primarily due to the reduction of light-induced scattering by thermally activated ions that neutralize the noise grating in the crystal. We have also observed that, at higher temperatures, steady-state phase-conjugate waves at both pump wavelengths can be obtained.
Feng Zhao, Feng Zhao, Zhongkong Wu, Zhongkong Wu, Francis T. S. Yu, Francis T. S. Yu, Deanna K. McMillen, Deanna K. McMillen, } "Temperature dependence of steady-state Bragg diffraction in a Ce:Fe:LiNbO3 photorefractive crystal," Optical Engineering 34(8), (1 August 1995). https://doi.org/10.1117/12.211522 . Submission:
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