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1 September 1996 Multi-conical emission at light counter-propagation in a resonant medium
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Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778AX (1996) https://doi.org/10.1117/12.2316082
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of
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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. A. Afanas'ev "Multi-conical emission at light counter-propagation in a resonant medium", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778AX (1 September 1996); https://doi.org/10.1117/12.2316082
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