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Nonlinear Optical Properties of PBT in Nematic Solutions

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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 {vnE0}. Different geometries, with respect to the relative orientation of {vnE0} 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.

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Acknowledgement

We thank the Air Force Office of Scientific Research for partial support of this study.

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Authors and Affiliations

  1. Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, 15213, USA

    Hedi Mattoussi, Philip G. Kaatz, Gary D. Patterson & Guy C. Berry

Authors
  1. Hedi Mattoussi
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  2. Philip G. Kaatz
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  3. Gary D. Patterson
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  4. Guy C. Berry
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Mattoussi, H., Kaatz, P.G., Patterson, G.D. et al. Nonlinear Optical Properties of PBT in Nematic Solutions. MRS Online Proceedings Library 214, 11–16 (1990). https://doi.org/10.1557/PROC-214-11

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  • DOI: https://doi.org/10.1557/PROC-214-11

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