Time-resolved shadowgraphic imaging of nonlinear liquids and suspensions

Robert V. Goedert; Roger J. Becker; Andrew F. Clements; Thomas A. Whittaker III

doi:10.1117/12.253593

7 October 1996 Time-resolved shadowgraphic imaging of nonlinear liquids and suspensions

Robert V. Goedert, Roger J. Becker, Andrew F. Clements, Thomas A. Whittaker III

Proceedings Volume 2853, Nonlinear Optical Liquids; (1996) https://doi.org/10.1117/12.253593
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

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); https://doi.org/10.1117/12.253593

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