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US 6,203,860 B1Granted
Thin film of potassium niobate process for producing the thin film and optical device using the thin film
AssigneeYamamura Glass Co., Ltd.
InventorsHideki Kawai, Hidekazu Hashima, Sadao Nakajima
Life of this patent
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Abstract
A thin film of a perovskite-type transparent potassium niobate formed on an amorphous substrate. The thin film of a perovskite-type potassium niobate has excellent transparency, can be (110) oriented, and can be used for optical devices, such as an optical waveguide, a second harmonic generating device, and an optical switching device.
Claims7
A process for producing a thin film of a perovskite-type transparent potassium niobate comprising depositing the thin film on an amorphous substrate by a physical vapor deposition process.
Dependencies are inferred from the claim text.