Method and apparatus for fabricating ferroelectric domain revers

Details Method and apparatus for fabricating ferroelectric domain revers Method and apparatus for fabricating ferroelectric domain revers

1994-07-18

1997-01-14

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Nonlinear device

359245, H01S 310

Patent

active

055947468

ABSTRACT:
An electrode is formed in a predetermined pattern on one surface of a unipolarized MgO-LiNbO.sub.3 substrate that is a ferroelectric substance and possesses a non-linear optical effect. The substrate is subjected to corona electrical charging by the electrode and a corona wire disposed above another surface of the substrate which is opposite to the electrode-side surface, and hence an electric field is applied to the substrate. When localized domain reversals are created on areas where the electrode faces the substrate, a vessel is attached to the electrode-side surface of the substrate. While a resulting closed space is kept in a vacuum by a vacuum pump but the opposite-side surface of the substrate relative to the electrode-side surface is in a non-vacuum, an electric field is applied to the substrate.

REFERENCES:
patent: 5415743 (1995-05-01), Harada
J. A. Armstrong et al, "Interactions Between Light Waves in a Nonlinear Dielectric", Physical Review, vol. 127, No. 6, Sep. 15, 1962, pp. 1918-1939.

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