The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 1995
Filed:
Oct. 31, 1994
Tohru Kineri, Chiba, JP;
Masami Mori, Chiba, JP;
TDK Corporation, Tokyo, JP;
Abstract
A novel structure has, on a substrate a nonlinear optical thin film having a high .chi..sup.(3) value provided wherein metal fine particles are uniformly dispersed in a ferroelectric or highly dielectric matrix and heat treated whereby the metal fine particles and matrix are improved in crystallinity. The excitation wavelength can be substantially changed by a choice of the heat treating conditions. The crystallinity of the metal fine particles and matrix and .chi..sup.(3) value are improved by selecting a proper substrate or changing the heat treating procedure and conditions. The thin film is further improved in nonlinear optical properties, typically .chi..sup.(3) and .chi..sup.(3) /.alpha. values by using a perovskite type compound ABO.sub.3 having a specific A/B ratio as the matrix material and controlling film deposition conditions for improving the crystallinity of the matrix.