Radiation imagery chemistry: process – composition – or product th – Holographic process – composition – or product – Composition or product or process of making the same
Patent
1976-01-26
1980-02-05
Louie, Jr., Won H.
Radiation imagery chemistry: process, composition, or product th
Holographic process, composition, or product
Composition or product or process of making the same
252 629, 252 30O, 346134, 350 361, G03C 176, G03C 100
Patent
active
041871090
ABSTRACT:
An optical element is composed of a single crystal of strontium barium niobate doped with a transition metal element such as cerium, vanadium or uranium. This element has the property of undergoing very sensitively a change in its refractive index by the application of a beam of light of specific wavelength.
REFERENCES:
patent: 3652145 (1972-03-01), Thaxter
patent: 3933504 (1976-01-01), Phillips et al.
patent: 3997350 (1976-12-01), Ikeo et al.
Liu et al., International Electron Device Meeting Technical Digest, pp. 259-262, 1974.
Aleksyuk, Resistance Anomaly in Semiconducting Barium Strontium Niobates, Chem. Abstracts, vol. 79, 11103t, (1973).
Cotton et al., Advanced Inorganic Chemistry, pp. 625-628, 1969.
Journal of Electronic Materials, vol. 2, No. 1, Feb. 1973, pp. 191-200.
Furuhata Yoshio
Kobayashi Masayoshi
Kozuka Hirotsugu
Megumi Koichi
Hitachi , Ltd.
Louie, Jr. Won H.
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