Electro-Optic Properties Of Ferroelectric Polymers

V. Dentan; Y. Levy; M. Dumont; P. Robin; E. Chastaing; J. P. Montheard

doi:10.1117/12.961371

14 December 1989 Electro-Optic Properties Of Ferroelectric Polymers

V. Dentan, Y. Levy, M. Dumont, P. Robin, E. Chastaing, J. P. Montheard

Proceedings Volume 1126, Electro-Optic and Magneto-Optic Materials and Applications; (1989) https://doi.org/10.1117/12.961371
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

Ferroelectric polymers are well known for their piezoelectric and pyroelectric applications. We have investigated their electro-optic properties using the attenuated total reflection method. Two different polymers were studied. P(VDF-TrFe) is an highly crystalline ferroelectric polymer which presents a well defined Curie temperature (100°C) and which can be polarized at room temperature, while P(VDCN-VAc) is an amorphous polymer which exhibits only a glass transition at 170°C. The high polarization which can be obtained in this polymer led some authors to refer it as a ferroelectric glass. We have shown that the attenuated total reflection allowed us to measure the electro-optic coefficient together with the piezoelectric coefficient. Futhermore, it is possible to separate the primary electrooptic coefficient from the secondary one which is due to the variation of density induced by the piezoelectric effect. Inversed polarization gives electrooptic coefficient with opposite sign. Because of their inherent thermodynamic stability, these ferroelectric polymers are very suitable for applications and their electrooptic coefficient can be surely increased by doping with non-linear active molecules.

Citation Download Citation

V. Dentan, Y. Levy, M. Dumont, P. Robin, E. Chastaing, and J. P. Montheard "Electro-Optic Properties Of Ferroelectric Polymers", Proc. SPIE 1126, Electro-Optic and Magneto-Optic Materials and Applications, (14 December 1989); https://doi.org/10.1117/12.961371

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