| Issue |
Europhys. Lett.
Volume 60, Number 6, December 2002
|
|
|---|---|---|
| Page(s) | 847 - 853 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2002-00294-2 | |
| Published online | 01 December 2002 | |
Locality vs. nonlocality of (2+1)-dimensional light-induced space-charge field in photorefractive crystals
1
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
Received:
4
June
2002
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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