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. 08, 2011
Filed:
Mar. 11, 2009
Keishi Oohashi, Tokyo, JP;
Tsutomu Ishi, Tokyo, JP;
Toshio Baba, Tokyo, JP;
Junichi Fujikata, Tokyo, JP;
Kikuo Makita, Tokyo, JP;
Keishi Oohashi, Tokyo, JP;
Tsutomu Ishi, Tokyo, JP;
Toshio Baba, Tokyo, JP;
Junichi Fujikata, Tokyo, JP;
Kikuo Makita, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A Schottky photodiode includes a semiconductor layer and a conductive film provided in contact with the semiconductor layer. The conductive film has an aperture and a periodic structure provided around said aperture for producing a resonant state by an excited surface plasmon in a film surface of the conductive film by means of the incident light to the film surface. The photodiode detects near-field light that is generated by at the interface between the conductive film and semiconductor layer the excited surface plasmon. The aperture has a diameter smaller than the wavelength of the incident light.