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:
Nov. 29, 2016
Filed:
Jan. 02, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Taku Aoyama, Setagaya, JP;
Koji Chindo, Kawasaki, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 8/00 (2006.01); G02F 1/01 (2006.01); H03L 7/26 (2006.01); H01S 5/00 (2006.01); H01S 5/042 (2006.01); H01S 5/0683 (2006.01); H01S 5/0687 (2006.01);
U.S. Cl.
CPC ...
G02F 1/0126 (2013.01); G02F 1/01 (2013.01); H03L 7/26 (2013.01); H01S 5/0085 (2013.01); H01S 5/0427 (2013.01); H01S 5/0687 (2013.01); H01S 5/06832 (2013.01);
Abstract
A quantum interference device includes: gaseous alkali metal atoms; and a light source for causing a resonant light pair having different frequencies that keep a frequency difference equivalent to an energy difference between two ground states of the alkali metal atoms, the quantum interference device causing the alkali metal atoms and the resonant light pair to interact each other to cause an electromagnetically induced transparency phenomenon (EIT), wherein there are a plurality of the resonant light pairs, and center frequencies of the respective resonant light pairs are different from one another.