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Proceedings Paper

Ultrafast spectroscopy and interferometry of laser-shocked thin films: practical considerations
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Paper Abstract

Shaped femtosecond laser driven shock waves fulfill the requisite time resolution required for following shock induced chemical kinetics, and enable very small scale shock physics experimentation. However, comparison to large scale experiments requires detailed characterization of the generated pressure profile. Spectroscopic studies at pressure and temperature are hindered by fluctuations in shock strength as functions of space and time. Representative time resolved broadband infrared absorption data on shocked polyvinylnitrate thin films are presented, followed by current efforts to alleviate spatial shock strength variations with spatial pulse shaping, and calculations of the interferometric phase shifts expected at long times, during the rarefaction.

Paper Details

Date Published: 20 September 2004
PDF: 6 pages
Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); doi: 10.1117/12.547966
Show Author Affiliations
Shawn D. McGrane, Los Alamos National Lab. (United States)
David S. Moore, Los Alamos National Lab. (United States)
David J. Funk, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 5448:
High-Power Laser Ablation V
Claude R. Phipps, Editor(s)

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