Title

Self-bending of dark and gray photorefractive solitons

Authors

Authors

M. I. Carvalho; M. Facao;D. N. Christodoulides

Comments

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Abbreviated Journal Title

Phys. Rev. E

Keywords

SPATIAL SOLITONS; SCREENING SOLITONS; MEDIA; BRIGHT; CRYSTALS; Physics, Fluids & Plasmas; Physics, Mathematical

Abstract

We investigate the effects of diffusion on the evolution of steady-state dark and gray spatial solitons in biased photorefractive media. Numerical integration of the nonlinear propagation equation shows that the soliton beams experience a modification of their initial trajectory, as well as a variation of their minimum intensity. This process is further studied using perturbation analysis, which predicts that the center of the optical beam moves along a parabolic trajectory and, moreover, that its minimum intensity varies linearly with the propagation distance, either increasing or decreasing depending on the sign of the initial transverse velocity. Relevant examples are provided.

Journal Title

Physical Review E

Volume

76

Issue/Number

1

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

8

WOS Identifier

WOS:000248552600059

ISSN

1539-3755

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