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:
Feb. 14, 2012
Filed:
Feb. 09, 2009
Yasuhiro Ito, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Satoshi Tomikawa, Tokyo, JP;
Shuichi Okawa, Tokyo, JP;
Yasuhiro Ito, Tokyo, JP;
Seiichi Takayama, Tokyo, JP;
Eiji Komura, Tokyo, JP;
Koji Shimazawa, Tokyo, JP;
Satoshi Tomikawa, Tokyo, JP;
Shuichi Okawa, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A near-field light generating device includes: a base having a top surface; a waveguide that allows laser light to propagate therethrough and is disposed above the top surface of the base; and a surface plasmon generating element that is disposed above the top surface of the base so as to adjoin the waveguide in a direction parallel to the top surface of the base. The waveguide has a side surface that faces the surface plasmon generating element. The surface plasmon generating element includes: a coupling part that is opposed to a part of the side surface of the waveguide with spacing therebetween and causes excitation of a surface plasmon by coupling with evanescent light occurring from the part of the side surface; and a near-field light generating part that generates near-field light based on the surface plasmon excited at the coupling part.