High-dipole, high-beta molecules with blue window transparency

Graham Hugh Cross; David Bloor; Tony L. Axon; Maria Farsari; David Gray; David Healy; Michael Swann; Marek Szablewski

doi:10.1117/12.187541

23 September 1994 High-dipole, high-beta molecules with blue window transparency

Graham Hugh Cross, David Bloor, Tony L. Axon, Maria Farsari, David Gray, David Healy, Michael Swann, Marek Szablewski

Proceedings Volume 2285, Nonlinear Optical Properties of Organic Materials VII; (1994) https://doi.org/10.1117/12.187541
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

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.

Citation Download Citation

Graham Hugh Cross, David Bloor, Tony L. Axon, Maria Farsari, David Gray, David Healy, Michael Swann, and Marek Szablewski "High-dipole, high-beta molecules with blue window transparency", Proc. SPIE 2285, Nonlinear Optical Properties of Organic Materials VII, (23 September 1994); https://doi.org/10.1117/12.187541

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