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Proceedings Paper

Picosecond UV laser pulses propagation in atmosphere
Author(s): Xiao Yuan; Jingru Liu; Baida Lu
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Paper Abstract

The study of long-range propagation of ps UV laser pulses in atmosphere and the beam profile spatial evolution is presented. The laser used in the experiment is a dye-KrF hybrid laser with the wavelength of 248 nm, maximum pulse energy of 140 mJ and pulse width of less than 10 ps. Measurement of spatial profile of laser beam and the plasma column produced of along the propagation direction verify that the filamentation of self-guiding is 2.6 m and the diameter of the self-guiding beam is 160 μm for the incident beam energy of 40 mJ. The electron density in the self-guiding column is derived to be several times of 1015 cm-3 level using a weakly ionized model.

Paper Details

Date Published: 26 January 2005
PDF: 6 pages
Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.574929
Show Author Affiliations
Xiao Yuan, Huazhong Univ. of Science and Technology (China)
Sichuan Univ. (China)
Jingru Liu, Northwest Institute of Nuclear Technology (China)
Baida Lu, Sichuan Univ. (China)

Published in SPIE Proceedings Vol. 5627:
High-Power Lasers and Applications III
Dianyuan Fan; Ken-ichi Ueda; Jongmin Lee, Editor(s)

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