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.

Date of Patent:
Apr. 20, 2010

Filed:

Sep. 18, 2006
Applicants:

Shinichi Hirose, Kawasaki, JP;

Motomu Takatsu, Kawasaki, JP;

Tatsuya Usuki, Kanagawa, JP;

Yasuhiko Arakawa, Kanagawa, JP;

Inventors:

Shinichi Hirose, Kawasaki, JP;

Motomu Takatsu, Kawasaki, JP;

Tatsuya Usuki, Kanagawa, JP;

Yasuhiko Arakawa, Kanagawa, JP;

Assignees:

Fujitsu Limited, Kawasaki, JP;

The University of Tokyo, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A single-photon generating device is configured to have a solid substrate including abase portion, and a pillar portion which is formed on the surface side of the base portion with a localized level existent in the vicinity of the tip of the base portion. The above pillar portion is formed to have a larger cross section on the base portion side than the cross section on the tip side, so that the light generated from the localized level is reflected on the surface, propagated inside the pillar portion, and output from the back face side of the base portion.


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