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Proceedings Paper

Polymer material laser destruction threshold studies
Author(s): Vladimir P. Efremov; Vadim E. Privalov; Pavel V. Skripov; Pavel V. Charty; Valery G. Shemanin
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Paper Abstract

The polymer films are widely used in any industry as the construction materials with some specific properties. It demands the detail studies of the laser destruction threshold parameters of such a materials irradiated by the he power laser radiation pulse with energy density in range from 0 up to 200 J/cm2. The probability of the target laser ablation destruction versus the incident laser radiation energy density dependencies for any polymers -- the high pressure polyethylene, epoxy compound, polymethylmetacrylate, styrosil and rubber for comparing -- have been a subject of the experimental studies. The plots of the breakdown probability and plasma emission intensity for all of the samples versus energy density dependences have been got and the breakdown energy density for these targets have been determined by this probability is equal to 0,5 or zero plasma intensity condition. These results show that about 11% of absorbed laser pulse energy was transferred to the target as the shock wave spreading in it when the target thickness is greater than the distance which this shock wave spreads in the time of laser pulse action.

Paper Details

Date Published: 16 February 2005
PDF: 8 pages
Proc. SPIE 5447, Lasers for Measurements and Information Transfer 2004, 54470R (16 February 2005); doi: 10.1117/12.610550
Show Author Affiliations
Vladimir P. Efremov, St. Petersburg State Polytechnical Univ. (Russia)
Vadim E. Privalov, St. Petersburg State Polytechnical Univ. (Russia)
Pavel V. Skripov, St. Petersburg State Polytechnical Univ. (Russia)
Pavel V. Charty, St. Petersburg State Polytechnical Univ. (Russia)
Valery G. Shemanin, St. Petersburg State Polytechnical Univ. (Russia)


Published in SPIE Proceedings Vol. 5447:
Lasers for Measurements and Information Transfer 2004
Vadim E. Privalov, Editor(s)

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