19 November 2003 Self-trapping along light-induced singularity of space charge in fast photorefractive materials
Author Affiliations +
Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003); doi: 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.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gabriel Fernandez Calvo, Boris I. Sturman, M. Carrascosa, 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); doi: 10.1117/12.530058; https://doi.org/10.1117/12.530058
PROCEEDINGS
2 PAGES


SHARE
KEYWORDS
Beam propagation method

Refractive index

Nonlinear response

Nonlinear optics

Gaussian beams

Crystals

Diffraction

Back to Top