Field dependent electrooptic device and method

Details Field dependent electrooptic device and method Field dependent electrooptic device and method

1985-04-30

1987-08-04

LaRoche, Eugene R.

350 9613, G02B 610

Patent

active

046842071

ABSTRACT:
Improved ferroelectric ceramic electrooptical substrate materials are provided for use in electrooptic devices utilizing millimeter wavelengths. The ferroelectric ceramics are characterized by transition temperatures in the range of 50-90 K and are selected from the following families of compositions: (1) (Ba.sub.x Sr.sub.1-x) TiO.sub.3, and (2) (Pb.sub.y Cd.sub.1-y).sub.2 (Ta.sub.z Nb.sub.1-z).sub.2 O.sub.7 ; where x is greater than 0 and less than 1, and y and z are numbers in the range of from 0 to 1.

REFERENCES:
patent: 4099836 (1978-07-01), Baues et al.
Physical Review Letters, vol. 19, No. 20, Nov. 13, 1967, pp. 1176-1179., Fleury et al., "Electric Field Dependence of Optical-Phonon Freq".
Physical Review, vol. 174, No. 2, Oct. 10, 1968, pp. 613-625, Fleury et al., "Electric-Field-Induced Roman Scattering--".
Ferroelectrics, pp. 142-154, 1983, "Integrated Optics Applications for Ferroelectric Materials".

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