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Proceedings Paper

New system for high-speed time-resolved holography of transient events
Author(s): Michael J. Ehrlich; J. Scott Steckenrider; James W. Wagner
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Paper Abstract

A configuration for sequential holographic recording based upon a new system for obtaining a train of spatially separated light pulses at frequencies ranging from 6 MHz to 35 MHz has been developed. The multipulse system uses a high energy Q-switched Nd:YAG laser as a light source,and incorporates a phase-front preserving optical delay line and a specially graded beamsplitter to produce up to ten spatially separated light pulses of nearly equal energy. The temporal spacing between successive output pulses may be varied discretely in increments of 28.3 ns from 28.3 ns to 169.8 ns. The system is currently used for high-speed time-resolved holography of dynamic events with lifetimes between 100 ns and 1.5 microsecond(s) . Other applications include using the system either as a single point or `phased-array' source for laser generation of ultrasound.

Paper Details

Date Published: 1 January 1993
PDF: 8 pages
Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); doi: 10.1117/12.145788
Show Author Affiliations
Michael J. Ehrlich, Martin Marietta Labs. (United States)
J. Scott Steckenrider, Johns Hopkins Univ. (United States)
James W. Wagner, Johns Hopkins Univ. (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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