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Design and Synthesis of New Acceptor Molecules for Photo-Induced Electron Transfer Reverse Saturable Absorption

Published online by Cambridge University Press:  21 March 2011

M. Bader ,
J. Moser ,
H. Li ,
S. Tarter  and
C. Spangler
M. Bader
Affiliation:
Department of Chemistry, Pennsylvania State University-Hazleton, Hazleton, PA 18201
J. Moser
Affiliation:
Department of Chemistry, Pennsylvania State University-Hazleton, Hazleton, PA 18201
H. Li
Affiliation:
Scientific Materials Corp., 310 Icepond Rd., P.O. Box 786, Bozeman, MT 59715
S. Tarter
Affiliation:
Department of Chemistry and Biochemistry, Optical Technology Center, Montana State University, Bozeman, MT 59717, [email protected]
C. Spangler
Affiliation:
Department of Chemistry and Biochemistry, Optical Technology Center, Montana State University, Bozeman, MT 59717, [email protected]
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Abstract

With the advent of efficient and relatively inexpensive pulsed and CW laser systems for both civilian and military applications, the need for adequate eye and sensor protection is becoming increasingly important. While it is possible to filter out harmful wavelengths if the laser frequency is known, the proliferation of frequency agile laser sources underscores the need for “smart” passive materials that can sense the incident wavelength and provide protection. There has been considerable progress made in recent years in the design of optical power limiting (OPL) materials that can function by a variety of mechanisms, most of which derive their limiting behavior from some type of nonlinear absorption process. The most well-studied of these processes involve excited state absorption in which the absorption cross-sections of the photo-generated transient species are much greater than the original S0 to S1 transition. In this presentation we will discuss the efficacy of charge transfer species for optical limiting, and the need for more and better electron acceptor species.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 598: Symposium BB – Electrical, Optical, & Magenetic Properties...V , 1999 , BB4.8
Copyright
Copyright © Materials Research Society 1999

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