Picosecond UV laser pulses propagation in atmosphere

Xiao Yuan; Jingru Liu; Baida Lu

doi:10.1117/12.574929

26 January 2005 Picosecond UV laser pulses propagation in atmosphere

Xiao Yuan, Jingru Liu, Baida Lu

Proceedings Volume 5627, High-Power Lasers and Applications III; (2005) https://doi.org/10.1117/12.574929
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Xiao Yuan, Jingru Liu, and Baida Lu "Picosecond UV laser pulses propagation in atmosphere", Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); https://doi.org/10.1117/12.574929

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