Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1993-03-03
1995-05-16
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204164, 372 22, 385122, G02F 100
Patent
active
054157439
ABSTRACT:
A fabrication method in which periodic domain reversals of large area are formed deeply, under improved control, over a ferroelectric which possesses the nonlinear optical effect. Proton-exchanged regions are prepared in a predetermined pattern on a unipolarized MgO-LiNbO3 substrate. An electric field is applied to these proton-exchanged regions from a high voltage power supply via a corona wire while it is subjected to a heat treatment by a heater, thereby fabricating local domain reversals.
REFERENCES:
patent: 4927220 (1990-05-01), Hesselink et al.
patent: 5036220 (1991-07-01), Byer et al.
"Milliwatt-order blue-light generation in a periodically domain-inverted LiTaO.sub.3 waveguide" Optics Letters vol. 16, No. 15, Aug. 1, 1991, pp. 1156-1158.
"Fabrication of periodic domain grating in LiNbO.sub.3 by electron beam writing for application of nonlinear optical processes" Electronics Letters vol. 27, No. 14, Jul. 4, 1991, pp. 1221-1222.
"Interactions between light waves in a nonlinear dielectric" Physical Review, vol. 127, No. 6, Sep. 15, 1962 pp. 1918-1938.
Fuji Photo Film Co. , Ltd.
Niebling John
Phasge Arun S,.
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