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Shadowgraphic Imaging of Dilute Carbon and Mo2Ag4S8,[PPh3]4 Suspensions

Published online by Cambridge University Press:  03 September 2012

Robert Goedert ,
Roger Becker ,
Andrew Clements  and
Thomas Whittaker III
Robert Goedert
Affiliation:
US Army Tank-automotive & Armaments Command, MS:263, Warren, MI 48397-5000
Roger Becker
Affiliation:
University of Dayton Research Institute, Electrical & Computer Engineering Division 300 College Park, Dayton, OH 45469-0150
Andrew Clements
Affiliation:
US Army Tank-automotive & Armaments Command, MS:263, Warren, MI 48397-5000
Thomas Whittaker III
Affiliation:
US Army Tank-automotive & Armaments Command, MS:263, Warren, MI 48397-5000
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Abstract

Time-resolved imagery is presented showing the changes that occur in the focal volume of dilute liquid/particle suspensions following the arrival of single, Q-switched, frequency-doubled, Nd:YAG laser pulses. Limiting data and corresponding imagery at 21, 84, 244, 790, and 2900 nanoseconds following the laser pulse are presented for a carbon particle suspension consisting of used (carbonized) 1OW-15 motor oil and for a suspension of the inorganic metallic cluster molecule Mo2Ag4S8 [PPh3]4. The images in conjunction with the accompanying limiting data show that the reduction in transmission, observed as the input pulse energy is increased, results from scattering from bubbles augmented by plasma absorption. Keywords: laser induced breakdown, plasma, suspension, bubble, nonlinear materials, shadowgraph, imagery

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 479: Symposium S – Materials for Optical Limiting II , 1997 , 285
Copyright
Copyright © Materials Research Society 1997

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