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Proceedings Paper

Enhanced second-order optical nonlinearities in extended thiophene containing compounds
Author(s): Sandra Gilmour; Seth R. Marder; Joseph W. Perry; Lap-Tak A. Cheng
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Paper Abstract

The synthesis and first hyperpolarizabilities ((beta) ) of various donor-acceptor substituted thiophene containing compounds with extended conjugation are reported. Molecules incorporating the acceptor group, 3-phenyl-5-isoxazolone, that can gain aromaticity upon charge-separation had larger (beta) than analogous molecules containing a dicyanovinyl acceptor. For both acceptors insertion of a vinyl group between the thiophene bridge and methine carbon of the acceptor enhances the second-order hyperpolarizability but does not lead to a significant decrease in thermal stability. The molecules have been incorporated into poly(methyl methacrylate) and the electro-optic coefficients of these host-guest polymers measured.

Paper Details

Date Published: 15 May 1994
PDF: 7 pages
Proc. SPIE 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications, (15 May 1994); doi: 10.1117/12.173811
Show Author Affiliations
Sandra Gilmour, Jet Propulsion Lab. (United States)
Seth R. Marder, Jet Propulsion Lab. and Beckman Institute (United States)
Joseph W. Perry, Jet Propulsion Lab. and Beckman Institute (United States)
Lap-Tak A. Cheng, E.I. du Pont de Nemours & Co., Inc. (United States)


Published in SPIE Proceedings Vol. 2143:
Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications
Seth R. Marder; Joseph W. Perry, Editor(s)

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