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Proceedings Paper

Influence Of Self-Focusing On Bulk Laser-Induced Damage
Author(s): M J Soileau; Eric W VanStryland; William E Williams
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Paper Abstract

In previous work [1] we reported that the power of importance in self-focusing experiments using Gaussian spatial profile is the second critical power, P2, defined by P2=3.77 P1 rather than the often quoted P1=Cλ2/(32π22). Here n2 is the nonlinear refractive index, c the speed of light and A the wavelength (both in vacuum). The factor of 3.77 is a numerical factor coming from computer calculations as discussed by Marburger [2]. We also presented a method by which we could obtain n2 at irradiances very near to damage In addition, we showed the experimental conditions under which self-focusing is unimportant in damage experiments. We have now extended these results so that in damage experiments where self-focusing is important we can estimate the reduced spot size within the bulk at damage and, thus, obtain the damaging electric field magnitude. This we do by observing the far field time integrated spatial irradiance distribution. We present data for Si02, NaCl, BK-7, and CS2.

Paper Details

Date Published: 27 June 1988
PDF: 8 pages
Proc. SPIE 0895, Laser Optics for Intracavity and Extracavity Applications, (27 June 1988); doi: 10.1117/12.944435
Show Author Affiliations
M J Soileau, University of Central Florida (United States)
Eric W VanStryland, University of Central Florida (United States)
William E Williams, University of Central Florida (United States)

Published in SPIE Proceedings Vol. 0895:
Laser Optics for Intracavity and Extracavity Applications
Philippe M. Fauchet; Karl H. Guenther, Editor(s)

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