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Design and Synthesis of Dendrimers with Enhanced Two-Photon Absorption

Published online by Cambridge University Press:  10 February 2011

E. H. Elandaloussi ,
C. W. Spangler ,
C. Dirk ,
M. Casstevens ,
D. Kumar  and
R. Burzynski
E. H. Elandaloussi
Affiliation:
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717
C. W. Spangler
Affiliation:
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717
C. Dirk
Affiliation:
Department of Chemistry, University of Texas-El Paso, El Paso, TX
M. Casstevens
Affiliation:
Laser Photonics Technology, Inc., 1576 Sweet Home Rd., Amherst, NY 14228
D. Kumar
Affiliation:
Laser Photonics Technology, Inc., 1576 Sweet Home Rd., Amherst, NY 14228
R. Burzynski
Affiliation:
Laser Photonics Technology, Inc., 1576 Sweet Home Rd., Amherst, NY 14228
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Abstract

Model dendrimers based on bis-(diphenylamino)stilbene repeat units have been synthesized and shown to have very stable bipolaronic charge states. Calculations at the AM-1 level predict two orders magnitude enhancement in the third-order nonlinearity in going from the neutral to bipolaron state. Measurement of two-photon cross-sections for PPV dimers with attached diphenylamino donor groups show enhanced two-photon cross-sections for ns pulses. Preliminary evaluation of one of the model dendrimers indicates even larger two-photon cross-sections are possible.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 561: Symposium F – Organic Nonlinear Optical Materials and Devices , 1999 , 63
Copyright
Copyright © Materials Research Society 1999

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References

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