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Proceedings Paper

Subnanosecond optical diagnostics of laser-material interaction and dynamic microstructure of materials
Author(s): Dennis L. Paisley; David B. Stahl
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Paper Abstract

Several optical diagnostic techniques are used to evaluate the dynamic response of materials to intense dynamic loading and unloading, high stress and strain, and pressure. Velocity interferometry and electronic streak photography, each with sub-nanosecond time resolution, are used to record dynamic material response. Laser-launched flat plates are accelerated to 1012 m/s2 with terminal velocities > 5 km/s. By impacting these plates into target samples, high strain rates (108 sec-1) and pressures > 100 GPa have been generated for a duration of 0.8 - 5 nanoseconds. The efficacy and limitations of each technique are detailed and applications to other fields discussed.

Paper Details

Date Published: 1 January 1993
PDF: 9 pages
Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); doi: 10.1117/12.145717
Show Author Affiliations
Dennis L. Paisley, Los Alamos National Lab. (United States)
David B. Stahl, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 1801:
20th International Congress on High Speed Photography and Photonics
John Marks Dewey; Roberto G. Racca, Editor(s)

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