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7 October 1996 Time-resolved shadowgraphic imaging of nonlinear liquids and suspensions
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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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert V. Goedert, Roger J. Becker, Andrew F. Clements, and Thomas A. Whittaker III "Time-resolved shadowgraphic imaging of nonlinear liquids and suspensions", Proc. SPIE 2853, Nonlinear Optical Liquids, (7 October 1996);


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