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Proceedings Paper

High-dipole, high-beta molecules with blue window transparency
Author(s): Graham Hugh Cross; David Bloor; Tony L. Axon; Maria Farsari; David Gray; David Healy; Michael Swann; Marek Szablewski
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Paper Abstract

We report the synthesis and evaluation of new highly polar molecules whose combined non- linear and linear optical properties are of interest for frequency doubling. The generic scheme for the syntheses rests on enamine substitutions of tetracyano-p-quinodimethane (TCNQ). In the case detailed, a novel reaction product is reported from the unexpected reaction of triethylamine and TCNQ. In polar solvents such as DMF, the molecule has a charge separated ground state and a measured bipole moment of 45 D. Also in polar solvents, the value for the resonant (beta) coefficient is measured to be -190 X 10-30 esu. Coupled with acceptable transparency at 460 nm ((epsilon) equals 86 M-1 cm-1) this molecule points to a new approach in the design of such materials.

Paper Details

Date Published: 23 September 1994
PDF: 6 pages
Proc. SPIE 2285, Nonlinear Optical Properties of Organic Materials VII, (23 September 1994); doi: 10.1117/12.187541
Show Author Affiliations
Graham Hugh Cross, Univ. of Durham (United Kingdom)
David Bloor, Univ. of Durham (United Kingdom)
Tony L. Axon, Univ. of Durham (United Kingdom)
Maria Farsari, Univ. of Durham (United Kingdom)
David Gray, Univ. of Durham (United Kingdom)
David Healy, Univ. of Durham (United Kingdom)
Michael Swann, Univ. of Durham (United States)
Marek Szablewski, Univ. of Durham (United Kingdom)

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

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