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Proceedings Paper

Nonlinear interface switching in carbon microparticle suspensions
Author(s): Robert R. Michael; Christopher M. Lawson
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Paper Abstract

We have investigated self-switching mechanisms in carbon microparticle suspensions. A dominant nonlinear switching mechanismin the majority ofthese samples is laserinduced cavitation which leads to total internal reflection (TIR) switching. Nonlinear reflectivities up to 90% were measured using frequency doubled, single 5ns Nd:YAG laser pulses. The fraction of energy that is not switched via 'HR undergoes additional nonlinear attenuation by nonlinear plasma scattering. We have also developed a technique for avoiding laser induced degradation of the nonlinear interface at high laser pulse energies. A simple model which may be used in the optimization of this technique is discussed.

Paper Details

Date Published: 18 August 1992
PDF: 11 pages
Proc. SPIE 1692, Nonlinear and Electro-Optic Materials for Optical Switching, (18 August 1992); doi: 10.1117/12.138067
Show Author Affiliations
Robert R. Michael, BDM International, Inc. (United States)
Christopher M. Lawson, BDM International, Inc. (United States)

Published in SPIE Proceedings Vol. 1692:
Nonlinear and Electro-Optic Materials for Optical Switching
M. J. Soileau, Editor(s)

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