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Nonlinear Optical Properties of Tetrabenzporphyrins

Published online by Cambridge University Press:  15 February 2011

Gary L. Wood ,
Andrew G. Mott ,
Mary J. Miller ,
Masato Nakashima  and
Joseph F. Roach
Gary L. Wood
Affiliation:
Army Research Laboratory Fort Belvoir, VA 22060
Andrew G. Mott
Affiliation:
Army Research Laboratory Fort Belvoir, VA 22060
Mary J. Miller
Affiliation:
Army Research Laboratory Fort Belvoir, VA 22060
Masato Nakashima
Affiliation:
Natick Research Development and Engineering Center Natick, MA 01760
Joseph F. Roach
Affiliation:
Natick Research Development and Engineering Center Natick, MA 01760
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Abstract

Optical limiting in a solution of tetrabenzporphyrin (TBP) dissolved in tetrahydrofuran (THF) was measured in an f/5 optical focusing arrangement using 532 nm wavelength laser light with a 9 ns pulse duration. The performance of this solution was compared to a variety of other materials. In order to better understand the nonlinear behavior of this material, apertured and unapertured Z-scans were performed. From these measurements it was determined that the excited-state cross section and its ratio to ground-state cross section were large. The nonlinear refraction of this material is made up of contributions from thermal density change and population redistribution. Limiter performance was modeled in an f/64 limiter. The limiter behavior of a slightly modified compound and an additional solvent were measured.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 374: Symposia ZB – Materials for Optical Limiting , 1994 , 267
Copyright
Copyright © Materials Research Society 1995

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