Self-action of Bessel light beams in medium with large nonlinearity
โ Scribed by V. Pyragaite; K. Regelskis; V. Smilgevicius; A. Stabinis
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 343 KB
- Volume
- 257
- Category
- Article
- ISSN
- 0030-4018
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โฆ Synopsis
The modifications of an angular spectrum of the intense Bessel J 0 and J 1 beams caused by self-action in the medium with large cubic nonlinearity are investigated. The appearance of an outer ring of triple radius was observed. The phenomenon can be explained as Bragg diffraction of Bessel beam on Bessel lattice in nonlinear medium. Experimental results are in qualitative agreement with the theoretical predictions.
๐ SIMILAR VOLUMES
The propagation of two light beams with orthogonal polarization in a nonlinear medium is considered. It is shown that because of the interaction of the beams there are two different self-focusing regimes: monotonous and oscillatory. Analytical results are confirmed by computer simulation.