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Proceedings Paper

Self-focusing and soliton propagation of light pulses in photorefractive media
Author(s): Delphine Wolfersberger; Nicolas Fressengeas; Jean Maufoy; Godefroy Kugel
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Paper Abstract

The paper presents a theoretical and experimental investigation of the self-focusing of a laser pulse in a photorefractive medium on a nanosecond time-scale. For times shorter than the dielectric recombination time, we analyze the space-charge field build-up with time and space and provide strong hints on the short time self-focusing of a narrow powerful beam. In order to validate our theoretical and numerical analysis, systematic investigations were performed on a Bi12TiO20 crystal, which show that under the influence of an applied electric field, a beam can be self-focused in a very short time.

Paper Details

Date Published: 4 December 1998
PDF: 6 pages
Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); doi: 10.1117/12.328615
Show Author Affiliations
Delphine Wolfersberger, Univ. de Metz-Supelec and Supelec (France)
Nicolas Fressengeas, Univ. de Metz-Supelec and Supelec (France)
Jean Maufoy, Supelec (France)
Godefroy Kugel, Univ. de Metz-Supelec (France)


Published in SPIE Proceedings Vol. 3491:
1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications

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