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Proceedings Paper

Construction Of The Second-Order Optical Nonlinearity In An Organic Side-Chain Polymer
Author(s): R. A. Huijts; L. W. Jenneskens; C. P. J. M van der Vorst; C. T. J. Wreesmann
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Paper Abstract

The second-order optical nonlinearity of a novel side-chain polymer is investigated in relation to the nonlinearity of its precursor molecules. The polyacrylate homopolymer contains 4-oxy-4'-nitrostilbene moieties as hyperpolarizable pendant side groups. The effective hyperpolarizability of the nonlinear optical (NLO) moiety is measured by electric-field-induced second harmonic generation in solutions. Measurements are reported on modifications of the NLO group, on the monomer and on the polymer. The experimental results reveal, that in this organic material the effective nonlinearity of the pendant group is little influenced by the attachment to the polymer backbone. It is found that the macroscopic second-order NLO coefficients, as measured by electro-optic methods in thin polymer films, are smaller than the theoretically expected coefficients based on microscopic parameters.

Paper Details

Date Published: 22 December 1989
PDF: 8 pages
Proc. SPIE 1127, Nonlinear Optical Materials II, (22 December 1989); doi: 10.1117/12.961416
Show Author Affiliations
R. A. Huijts, Akzo Research Laboratories Arnhem (The Netherlands)
L. W. Jenneskens, Akzo Research Laboratories Arnhem (The Netherlands)
C. P. J. M van der Vorst, Akzo Research Laboratories Arnhem (The Netherlands)
C. T. J. Wreesmann, Akzo Research Laboratories Arnhem (The Netherlands)

Published in SPIE Proceedings Vol. 1127:
Nonlinear Optical Materials II
Jean-Bernard Grun, Editor(s)

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