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Proceedings Paper

Femtosecond laser interaction with energetic materials
Author(s): Edward V. Roos; Jerry J. Benterou; Ronald S. Lee; Frank Roseke; Brent C. Stuart
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Paper Abstract

Femtosecond laser ablation shows promise in machining energetic materials into desired shapes with minimal thermal and mechanical effects to the remaining material. We will discuss the physical effects associated with machining energetic materials and assemblies containing energetic materials, based on experimental results. Interaction of ultra-short laser pulses with matter will produce high temperature plasma at high-pressure which results in the ablation of material. In the case of energetic material, which includes high explosives, propellants and pyrotechnics, this ablation process must be accomplished without coupling energy into the energetic material. Experiments were conducted in order to characterize and better understand the phenomena of femtosecond laser pulse ablation on a variety of explosives and propellants. Experimental data will be presented for laser fluence thresholds, machining rates, cutting depths and surface quality of the cuts.

Paper Details

Date Published: 13 September 2002
PDF: 9 pages
Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); doi: 10.1117/12.482111
Show Author Affiliations
Edward V. Roos, Lawrence Livermore National Lab. (United States)
Jerry J. Benterou, Lawrence Livermore National Lab. (United States)
Ronald S. Lee, Lawrence Livermore National Lab. (United States)
Frank Roseke, Lawrence Livermore National Lab. (United States)
Brent C. Stuart, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 4760:
High-Power Laser Ablation IV
Claude R. Phipps, Editor(s)

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