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Proceedings Paper

Self-trapping along light-induced singularity of space charge in fast photorefractive materials
Author(s): Gabriel Fernandez Calvo; Boris I. Sturman; M. Carrascosa; Fernando Agullo-Lopez
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Paper 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.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.530058
Show Author Affiliations
Gabriel Fernandez Calvo, Univ. Autonoma de Madrid (Spain)
Boris I. Sturman, Institute of Automation and Electrometry (Russia)
M. Carrascosa, Univ. Autonoma de Madrid (Spain)
Fernando Agullo-Lopez, Univ. Autonoma de Madrid (Spain)

Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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