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Proceedings Paper

Comparative analysis of gas dynamic regimes of high-power UV and IR gas laser interactions with solids in the atmosphere
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Paper Abstract

This paper describes gasdynamic regimes of high-power pulsed laser interaction with solid targets in the ambient air of normal and reduced densities in the moderate intensity range 0.1 - 1000 MW/cm2, typical four numerous laser applications. The experiments have been performed with a set of CO, CO2 and KrF laser installations with output energy up to 100 J and pulse durations of 0.1 - 200 microsecond(s) . Supersonic erosion jet formation during target evaporation as well as different types of laser- supported absorption waves, i.e. laser-supported detonation waves, subsonic and supersonic radiation waves have been identified for the variety of radiation wavelength 0.25, 5.0 - 5.6, 10.6 (9.6) micrometer. The results on the gasdynamic regimes determination, being obtained for sufficiently big irradiated spots approximately 1 cm, might be extended for much higher energies available for these types of lasers in large-scale environments.

Paper Details

Date Published: 16 August 2000
PDF: 12 pages
Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); doi: 10.1117/12.407343
Show Author Affiliations
Vladimir D. Zvorykin, P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 4065:
High-Power Laser Ablation III
Claude R. Phipps, Editor(s)

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