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Two Photon Spectroscopy of Dithienyl Polyenes

Published online by Cambridge University Press:  10 February 2011

Thomas M. Cooper ,
Paul A. Fleitz ,
Laura A. Sowards ,
Lalgudi V. Natarajan ,
Sean Kirkpatricky ,
Suresh Chandra  and
Charles W. Spangler
Thomas M. Cooper
Affiliation:
Air Force Research Laboratory, AFRL/MLPJ, 3005 P St. Ste. 1, Wright-Patterson Air Force Base, OH 45433
Paul A. Fleitz
Affiliation:
Air Force Research Laboratory, AFRL/MLPJ, 3005 P St. Ste. 1, Wright-Patterson Air Force Base, OH 45433
Laura A. Sowards
Affiliation:
Air Force Research Laboratory, AFRL/MLPJ, 3005 P St. Ste. 1, Wright-Patterson Air Force Base, OH 45433
Lalgudi V. Natarajan
Affiliation:
Science Applications International Corporation, Dayton, OH 45434
Sean Kirkpatricky
Affiliation:
Science Applications International Corporation, Dayton, OH 45434
Suresh Chandra
Affiliation:
Science Applications International Corporation, Dayton, OH 45434
Charles W. Spangler
Affiliation:
Department of Chemistry, Montana State University, Bozeman, MT 59717
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Abstract

To understand the properties of light-sensitive compounds used in optical limiters having photoinduced charge transfer mechanisms, we have investigated the photophysics of a series of di(2-thienyl-3,3'-butyl)polyenes. Spectroscopic measurements, including UV/Vis, fluorescence, fluorescence lifetimes, fluorescence quantum yields, triplet state lifetime, solvent effects and two-photon absorption coefficient were obtained as a function of the number of double bonds(n = 1-5). Trends in the data reflected the ordering, energy gap between and mixing of 1Bu* and 1Ag* excited state configurations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 561: Symposium F – Organic Nonlinear Optical Materials and Devices , 1999 , 51
Copyright
Copyright © Materials Research Society 1999

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References

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