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Self-focusing and self-trapping in unbiased centrosymmetric photorefractive media

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Abstract

We predict self-focusing and self-trapping of optical beams propagating in unbiased centrosymmetric photorefractive crystals in the near-transition paraelectric phase, where the nonlinear response is proportional to the square of the diffusion space-charge field.

© 1998 Optical Society of America

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