Organic Polymer Films For Second Order Nonlinear Applications

J. R. Hill; P. Pantelis; P. L. Dunn; G. J. Davies

doi:10.1117/12.962121

15 January 1990 Organic Polymer Films For Second Order Nonlinear Applications

J. R. Hill, P. Pantelis, P. L. Dunn, G. J. Davies

Proceedings Volume 1147, Nonlinear Optical Properties of Organic Materials II; (1990) https://doi.org/10.1117/12.962121
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

A large and highly stable internal electric field has been measured in thin films of corona poled copoly(vinylidene fluoride - trifluoroethylene) by analysis of the alignment of coloured organic compounds (chromophores) dissolved as guests at low concentration in the host polymer. These chromophores were designed to have both large electric dipole moments and high microscopic second order optical nonlinearities so that, when aligned in the internal field, they contributed to the small intrinsic nonlinearity of the poled host polymer. The second harmonic coefficient of the mixture was found to be linear with the guest concentration and at 10% by weight to have a value of 2.6x10^-12 m/V at 1.064μm.. The coefficient of the films was found to be stable with time unless precipitation of the guest occured owing to an insufficient solubilty at the selected concentration. This system is compared with thermopoled polymeric systems which have no stable internal electric field.

Citation Download Citation

J. R. Hill, P. Pantelis, P. L. Dunn, and G. J. Davies "Organic Polymer Films For Second Order Nonlinear Applications", Proc. SPIE 1147, Nonlinear Optical Properties of Organic Materials II, (15 January 1990); https://doi.org/10.1117/12.962121

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