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Nonlinear Optical Properties of PBT in Nematic Solutions

Published online by Cambridge University Press:  21 February 2011

Hedi Mattoussi ,
Philip G. Kaatz ,
Gary D. Patterson  and
Guy C. Berry
Hedi Mattoussi
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
Philip G. Kaatz
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
Gary D. Patterson
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
Guy C. Berry
Affiliation:
Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, PA 15213
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Abstract

Third-order nonlinear optical properties of lyotropic liquid crystal poly(1,4-phenylene-2,6-benzobisthiazole), PBT, solutions are studied by third harmonic generation measurements. Besides the enhancement observed for this coefficient with respect to the pure PBT, coupling is observed between the mean filed nematic director n and the incident fundamental polarization B0. Different geometries, with respect to the relative orientation of B0 and n, provided different harmonic Maker Fringe Patterns. These data are compared using refractive index measurements, independently achieved on these materials, and necessary for Maker Fringe analysis.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 214: Symposium R1 – Optical and Electrical Properties of Polymers , 1990 , 11
Copyright
Copyright © Materials Research Society 1991

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References

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