Volume 60, Number 6, December 2002
|Page(s)||847 - 853|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 December 2002|
Locality vs. nonlocality of (2+1)-dimensional light-induced space-charge field in photorefractive crystals
Departamento de Física de Materiales
C-IV, Universidad Autónoma de Madrid Cantoblanco, 28049 Madrid, Spain
2 Institute of Physics - P.O. Box 57, 11001 Belgrade, Yugoslavia
3 Laser Physics Centre, The Australian National University Canberra, ACT 0200, Australia
Accepted: 1 October 2002
A novel analytical description of the nonlocal anisotropic space charge field, induced by (2+1)D localized light beams in photorefractive crystals, is introduced. Closed-form expressions for the space-charge field induced by circularly symmetric beams are obtained. Also, on the basis of our formulation, numerical simulations of the beam dynamics are performed and compared with those corresponding to a local modeling of the space-charge field.
PACS: 42.65.Jx – Beam trapping, self-focusing, and thermal blooming / 42.65.Hw – Phase conjugation, optical mixing, and photorefractive effect / 42.65.Tg – Optical solitons; nonlinear guided waves
© EDP Sciences, 2002
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