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Proceedings Paper

Numerical simulations of solvent effects on optical transmission processes for zinc porphyrins
Author(s): Masato Nakashima; Landa Hoke; Brian R. Kimball; Gregory J. Kowalski; Barry S. DeCristofano; Paula Rosenof; Desai Narayana Rao; Devulapalli V. G. L. N. Rao
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Paper Abstract

The optical transmission processes for a nonlinear optical (NLO) material are influenced by the properties of its environment. NLO properties such as intersystem crossing rates may be altered by characteristics of the host such as polarity. The effects of the host material on the optical transmission of the NLO material is investigated using numerical laser beam propagation modeling (LBPM) techniques. Numerical simulations are reported for the optical transmission for zinc meso-tetra(p-methoxyphenyl)tetrabenzporphyrin (ZnTMPTBP) in liquids of differing polarity such as toluene, tetrahydrofuran (THF), dichloromethane (DCM), acetone, and pyridine. In addition to investigating the effect of the solvent on transmission, these calculations explore the effect on transmission of two different singlet lifetimes which have been reported in the literature. Transmission curves are calculated using separately determined parameters obtained from curve fitting using zscan data. Calculated results are compared with experimental data for all cases. Z-scans are also calculated for several cases and the results compared to experimental data. Numerical simulations provide a valuable tool to study the optical transmission behavior of NLO materials such as ZnTMPTBP.

Paper Details

Date Published: 16 January 2002
PDF: 11 pages
Proc. SPIE 4462, Nonlinear Optical Transmission Processes and Organic Photorefractive Materials, (16 January 2002); doi: 10.1117/12.452720
Show Author Affiliations
Masato Nakashima, U.S. Army Soldier Systems Ctr. (United States)
Landa Hoke, U.S. Army Soldier Systems Ctr. (United States)
Brian R. Kimball, U.S. Army Soldier Systems Ctr. (United States)
Gregory J. Kowalski, Northeastern Univ. (United States)
Barry S. DeCristofano, U.S. Army Soldier Systems Ctr. (United States)
Paula Rosenof, U.S. Army Soldier Systems Ctr. (United States)
Desai Narayana Rao, Univ. of Hyderabad (India)
Devulapalli V. G. L. N. Rao, Univ. of Massachusetts/Boston (United States)

Published in SPIE Proceedings Vol. 4462:
Nonlinear Optical Transmission Processes and Organic Photorefractive Materials
Christopher M. Lawson; Klaus Meerholz, Editor(s)

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