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Proceedings Paper

Time-resolved shadowgraphic imaging of nonlinear liquids and suspensions
Author(s): Robert V. Goedert; Roger J. Becker; Andrew F. Clements; Thomas A. Whittaker
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Paper Abstract

Time-resolved imagery is presented showing the changes that occur in the focal volume of nonlinear liquids and suspensions as well as neat solvents, following the arrival of single Q-switched doubled Nd:YAG laser pulses. The images show that increasing input pulse energy results in partial beam deflection in silicon naphthalocyanine, scattering and absorption centers in suspensions, and plasma, shockwaves and bubbles following the breakdown of neat solvents. The technique involves converting a portion of the laser pulse to probe pulses which are then delayed through varying lengths of optical fiber. The focal volume is probed perpendicular to the incident beam at various times from 12 ns to 2.9 microseconds after the arrival of the pulse in the test cell. Several unsuspected phenomena have been found. A discussion of the type of information which may be gleaned from this data as well as several key findings are given.

Paper Details

Date Published: 7 October 1996
PDF: 19 pages
Proc. SPIE 2853, Nonlinear Optical Liquids, (7 October 1996); doi: 10.1117/12.253593
Show Author Affiliations
Robert V. Goedert, U.S. Army Tank-Automotive & Armaments Command (United States)
Roger J. Becker, Univ. of Dayton Research Institute (United States)
Andrew F. Clements, U.S. Army Tank-Automotive & Armaments Command (United States)
Thomas A. Whittaker, U.S. Army Tank-Automotive & Armaments Command (United States)

Published in SPIE Proceedings Vol. 2853:
Nonlinear Optical Liquids
Christopher M. Lawson, Editor(s)

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