Particle Velocity Measurements Of Laser-Induced Shock Waves Using ORVIS

Stephen A. Sheffield; George A. Fisk

doi:10.1117/12.936281

9 January 1984 Particle Velocity Measurements Of Laser-Induced Shock Waves Using ORVIS

Stephen A. Sheffield, George A. Fisk

Proceedings Volume 0427, High Speed Photography, Videography, and Photonics I; (1984) https://doi.org/10.1117/12.936281
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

This paper discusses experiments in which 2 to 200-pm-thick aluminum foils were irradiated with Nd/YAG laser pulses at 3-4 GW/cm2 for 10 nsec. An optically recording velocity interferometer system (ORVIS) was used to record the resulting particle-velocity histories with nanosecond resolution. Results show that foils suspended in air are accelerated, over a period about three times the length of the laser pulse, to a final velocity inversely proportional to foil thickness. A 12-pm-thick foil attains a peak velocity of 0.2 km/sec. Foils confined by water undergo most of their acceleration during the laser pulse and attain surface velocities three times greater than do air-suspended foils of the same thickness.

Citation Download Citation

Stephen A. Sheffield and George A. Fisk "Particle Velocity Measurements Of Laser-Induced Shock Waves Using ORVIS", Proc. SPIE 0427, High Speed Photography, Videography, and Photonics I, (9 January 1984); https://doi.org/10.1117/12.936281

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