Self-trapping along light-induced singularity of space charge in fast photorefractive materials

Gabriel Fernandez Calvo; Boris I. Sturman; M. Carrascosa; Fernando Agullo-Lopez

doi:10.1117/12.530058

19 November 2003 Self-trapping along light-induced singularity of space charge in fast photorefractive materials

Gabriel Fernandez Calvo, Boris I. Sturman, M. Carrascosa, Fernando Agullo-Lopez

Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.530058
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy

Abstract

We investigate light beam propagation in a fast photorefractive medium placed in an alternating electric ac-field to enhance the nonlinear response. It is shown that the joint action of the optical and material nonlinearities leads to formation of a narrow singularity of the light-induced space charge at the intensity maximum and to self-trapping of the light energy near the corresponding discontinuity of the index profile. Owing to the strong saturation of the material nonlinearity, the trapped beam propagates over long distances with only a weak loss of its power.

Citation Download Citation

Gabriel Fernandez Calvo, Boris I. Sturman, M. Carrascosa, and Fernando Agullo-Lopez "Self-trapping along light-induced singularity of space charge in fast photorefractive materials", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); https://doi.org/10.1117/12.530058

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