Interferometry, streak photography, and stereo photography of laser-driven miniature flying plates

Dennis L. Paisley; Nelson I. Montoya; David B. Stahl; Ismel A. Garcia

doi:10.1117/12.47988

1 April 1991 Interferometry, streak photography, and stereo photography of laser-driven miniature flying plates

Dennis L. Paisley, Nelson I. Montoya, David B. Stahl, Ismel A. Garcia

Proceedings Volume 1358, 19th Intl Congress on High-Speed Photography and Photonics; (1991) https://doi.org/10.1117/12.47988
Event: 19th International Congress on High-Speed Photography and Photonics, 1990, Cambridge, United Kingdom

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.

Citation Download Citation

Dennis L. Paisley, Nelson I. Montoya, David B. Stahl, and Ismel A. Garcia "Interferometry, streak photography, and stereo photography of laser-driven miniature flying plates", Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); https://doi.org/10.1117/12.47988

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