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. 17, 1991
Filed:
Dec. 11, 1990
Applicant:
Inventors:
Toshihiko Takano, Kashiwa, JP;
Yoshio Okada, Kawagoe, JP;
Yoshio Inoue, Matsudo, JP;
Kouzaburo Yano, Kashiwa, JP;
Terutaka Tokumaru, Kashiwa, JP;
Assignee:
Sharp Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
307427 ; 350 9612 ;
Abstract
A metal surface plasmon is excited in a multi-layered film composed of thin metal films and a thin dielectric film, by light having a propagation constant larger than that of the incident light emitted from an optical component such as a prism. Due to an extremely strong alternating electric field produced by the electric field enhancement effect of the metal surface plasmon, a harmonic is generated from a nonlinear optical crystal.