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Proceedings Paper

Interferometry, streak photography, and stereo photography of laser-driven miniature flying plates
Author(s): Dennis L. Paisley; Nelson I. Montoya; David B. Stahl; Ismel A. Garcia
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Paper Abstract

Optical diagnostics to evaluate the velocity, acceleration profiles, planarity, and integrity of miniature (≤5 μm thick x ≤600 μm diam) plates of aluminum and other metals will be reported. By correlating various optical techniques and collected data, a complete understanding of the flying plate can be determined. Velocity interferometer system for any reflector (VISAR), with ≤120 ps resolution per data point, is used to record plate acceleration and terminal velocity. Electronic-streak and pulsed-laser stereo photography can determine planarity and integrity. Flyer-plate performance data are related to the properties of the laser beam that accelerates the plate. Laser parameters, such as energy density, power density, and spatial profile, affect the flying-plate performance parameters, i.e., planarity, acceleration, and velocity. Flying-plate accelerations of ≥1010 G and terminal velocities of ≥6 mm/μs have been recorded, via a 10-ns-Nd:YAG laser pulse delivered to a tamped, 5-μm-aluminum plate.

Paper Details

Date Published: 1 April 1991
PDF: 6 pages
Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); doi: 10.1117/12.47988
Show Author Affiliations
Dennis L. Paisley, Los Alamos National Lab. (United States)
Nelson I. Montoya, Los Alamos National Lab. (United States)
David B. Stahl, Los Alamos National Lab. (United States)
Ismel A. Garcia, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 1358:
19th Intl Congress on High-Speed Photography and Photonics
Peter W. W. Fuller, Editor(s)

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