Abstract
The effects of temperature on the intensity profiles and self-deflection of matching Gaussian beam in biased two-photon centrosymmetric paraelectric photorefractive crystals are investigated by numerical simulation. The results show that the matching Gaussian beam can involve into a stable solitary wave after some propagation distance. The peak intensity decreases and the width of the matching Gaussian beam increases as temperature rises. The absolute value of the bending distance decreases monotonically with increasing of temperature. The crystal proposed here is potassium lithium tantalite niobate (KTN).
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