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Proceedings Paper

Innovative laser-hardened solid host material for nonlinear filters
Author(s): Dennis P. Pacheco; William H. Russell; Henry R. Aldag; Barry DeCristofano; Masato Nakashima; Brian R. Kimball
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Paper Abstract

We report on the physical and optical characteristics of the laser-hardened, solid-state host material polymer-filled nanoporous glass (PFNPG). PFNPG consists of a nanoporous glass structure (average pore size =~7 - 10 nm and matrix porosity =~38 - 40%) filled with a damage-resistant polymer. We have previously used this material as a host matrix for solid-state dye lasers, and in this study have applied it to nonlinear filters. The objectives were twofold: (1) to fabricate PFNPG samples with a high laser damage threshold under f/5 focusing conditions; and (2) to successfully dope a nonlinear absorbing dye into this matrix at millimolar concentrations. Undoped PFNPG plates showed damage thresholds of =~42 J/cm2, a value significantly higher than that observed for a bulk polymer in the same test bed. PFNPG samples doped with the nonlinear dye Zn-TPP showed even greater damage resistance. Samples with dye concentrations ≥1 mM showed good nonlinear filtering.

Paper Details

Date Published: 10 June 2004
PDF: 7 pages
Proc. SPIE 5273, Laser-Induced Damage in Optical Materials: 2003, (10 June 2004); doi: 10.1117/12.524526
Show Author Affiliations
Dennis P. Pacheco, Physical Sciences, Inc. (United States)
William H. Russell, Physical Sciences, Inc. (United States)
Henry R. Aldag, Physical Sciences, Inc. (United States)
Barry DeCristofano, U.S. Army Soldier Systems Ctr. (United States)
Masato Nakashima, U.S. Army Soldier Systems Ctr. (United States)
Brian R. Kimball, U.S. Army Soldier Systems Ctr. (United States)

Published in SPIE Proceedings Vol. 5273:
Laser-Induced Damage in Optical Materials: 2003
Gregory J. Exarhos; Arthur H. Guenther; Norbert Kaiser; Keith L. Lewis; M. J. Soileau; Christopher J. Stolz, Editor(s)

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