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Proceedings Paper

Experimental and theoretical research of propagation of the double-circle laser beam in Kerr-medium
Author(s): Chang-yu Shen; Fei Chen; Bao-yin Yin; Run-cai Miao
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Paper Abstract

The filamentary self-focusing and spot-splitting effects and dark band phenomenon are observed during the propagation of double-circle laser beam in Kerr-medium of CS2. With solving nonlinear Schrodinger equation numerically, the effects of self-focusing and spot-splitting are observed when the input laser beam's power density over 98kw/cm2, which is much lower than the single-circle spot laser beam's threshold of self-focusing and spot-splitting, and the split pulses can undergo additional splitting. The filamentary self-focusing is observed in propagation process as the input laser beam's power density over 135kw/cm2 as the propagation length over 65cm and it is closely connected with the spatial splitting. The external and the internal circle's propagation characteristics on intensity, radius and focus are contrasted.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65950G (5 March 2007); doi: 10.1117/12.726443
Show Author Affiliations
Chang-yu Shen, China Jiliang Univ. (China)
Fei Chen, China Jiliang Univ. (China)
Bao-yin Yin, Shanxi Normal Univ. (China)
Run-cai Miao, Shanxi Normal Univ. (China)


Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III
Yuri N. Kulchin; Jinping Ou; Oleg B. Vitrik; Zhi Zhou, Editor(s)

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