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Proceedings Paper

Experimental study on small-scale self-focusing of femtosecond pulse with cross silk spatial diffraction modulation
Author(s): Zehu Feng; Xiquan Fu; Lifu Zhang; Shuangchun Wen
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Paper Abstract

We experimentally and theoretically investigate the propagation of intense femtosecond pulse in a nonlinear medium, in which the dynamic process of small-scale self-focusing of intense femtosecond pulse is experimentally investigated. By using tabletop femtosecond laser, the pulse which is spatially modulated by the cross silk diffraction passes through the nonlinear medium (carbon bisulfide, CS2). As the input power increases, the small-scale self-focusing of the pulse is obtained. By analyzing the contrast gradient of the beam, we can obtain the dynamic process of small-scale self-focusing. Finally, we find that the numerical simulations are in good agreement with experimental results.

Paper Details

Date Published: 18 December 2007
PDF: 8 pages
Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 678347 (18 December 2007); doi: 10.1117/12.745250
Show Author Affiliations
Zehu Feng, Hunan Univ. (China)
Xiquan Fu, Hunan Univ. (China)
Lifu Zhang, Hunan Univ. (China)
Shuangchun Wen, Hunan Univ. (China)

Published in SPIE Proceedings Vol. 6783:
Optical Transmission, Switching, and Subsystems V
Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama; Chang-Soo Park, Editor(s)

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