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Proceedings Paper

Theoretical and experimental second-harmonic generation studies of rotational response of a dye molecule in a random copolymer of styrene and methyl methacrylate
Author(s): Carl W. Dirk; S. Devanathan; M. Velez; S. Ghebremichael; Mark G. Kuzyk
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Paper Abstract

We report on second harmonic generation measurements of a polymer-impeded electric field induced rotation of the dye molecule Disperse Red 1 in a series of styrene-methyl methacrylate copolymers of varying composition. We show by analysis of a generalized hypothetical binomial or multinomial distribution, that the dye molecules are not randomly distributed through the polymer, and apparently associate more strongly with the styrene and methyl methacrylate homopolymer regions. This could also be viewed as evidence of non-random distribution of the two monomers of the copolymer.

Paper Details

Date Published: 23 September 1994
PDF: 12 pages
Proc. SPIE 2285, Nonlinear Optical Properties of Organic Materials VII, (23 September 1994); doi: 10.1117/12.187538
Show Author Affiliations
Carl W. Dirk, Univ. of Texas/El Paso (United States)
S. Devanathan, Univ. of Texas/El Paso (United States)
M. Velez, Univ. of Texas/El Paso (United States)
S. Ghebremichael, Washington State Univ. (United States)
Mark G. Kuzyk, Washington State Univ. (United States)


Published in SPIE Proceedings Vol. 2285:
Nonlinear Optical Properties of Organic Materials VII
Gustaaf R. Moehlmann, Editor(s)

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