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Proceedings Paper

Determination of the orientational order parameters , in a polysilane LB film via polarization-dependent THG
Author(s): Dieter Neher; Silvia Mittler-Neher; Myoungsik Cha; George I. Stegeman; F. W. Embs; Gerhard Wegner; Robert D. Miller; C. Grant Willson
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Paper Abstract

We demonstrate resonant third harmonic generation as a powerful tool for analyzing the quasi 2-D molecular orientational order in a Langmuir-Blodgett film of poly(bis-m- butoxyphenylsilane). By recording Maker-fringes at different angles between the polarization of the fundamental beam and the dipping direction, we were able to determine the order parameters *2> and *4> simultaneously. We found *2> equals 0.466 +/- 0.030 and *4> equal to -0.12 +/- 0.10.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1560, Nonlinear Optical Properties of Organic Materials IV, (1 December 1991); doi: 10.1117/12.50730
Show Author Affiliations
Dieter Neher, CREOL/Univ. of Central Florida (United States)
Silvia Mittler-Neher, CREOL/Univ. of Central Florida (United States)
Myoungsik Cha, CREOL/Univ. of Central Florida (United States)
George I. Stegeman, CREOL/Univ. of Central Florida (United States)
F. W. Embs, Max-Planck-Institut fuer Polymerforschung (Germany)
Gerhard Wegner, Max-Planck-Institut fuer Polymerforschung (Germany)
Robert D. Miller, IBM/Almaden Research Ctr. (United States)
C. Grant Willson, IBM/Almaden Research Ctr. (United States)


Published in SPIE Proceedings Vol. 1560:
Nonlinear Optical Properties of Organic Materials IV
Kenneth D. Singer, Editor(s)

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