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Proceedings Paper

Multi-conical emission at light counter-propagation in a resonant medium
Author(s): A. A. Afanas'ev
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Paper Abstract

The counter-propagation of strong light beams in nonlinear media is capable to demonstrate a rich variety of spatio-temporal instability effects. Resonant media due to their spectral-selective and saturation properties enrich the nonlinear light dynamics which could result, for example, in an excitation of so-called conical emission manifested in a formation of far-field ring structure of resonantly scattered radiation. The cone frequency is usually shifted to a red side of the resonant transition while the pump beam frequency lies on a self-focusing blue wing. It has been shown analitycally [1] and numerically [2], that the conical emission appears mainly due to a frequency-shifted four-photon scattering (FPS) on Stark sublevels of the resonant system, and is excited inside of stable light filaments, which conclude a development of self-focusing frequency-degenerate spatial instability.

Paper Details

Date Published: 1 September 1996
PDF: 2 pages
Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778AX (1 September 1996); doi: 10.1117/12.2316082
Show Author Affiliations
A. A. Afanas'ev, Institute of Physics (Belarus)


Published in SPIE Proceedings Vol. 2778:
17th Congress of the International Commission for Optics: Optics for Science and New Technology
Joon-Sung Chang; Jai-Hyung Lee; ChangHee Nam, Editor(s)

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