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.:

US 6728281 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 27, 2004

Filed:

Feb. 09, 2001
Applicant:
Inventors:

Charles Santori, Stanford, CA (US);

Oliver Benson, Constance, DE;

Yoshihisa Yamamoto, Stanford, CA (US);

Matthew Pelton, Stanford, CA (US);

Jungsang Kim, Basking Ridge, NJ (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 5/00 ; H01L 2/906 ;
U.S. Cl.
CPC ...
H01S 5/00 ; H01L 2/906 ;
Abstract

A quantum-dot photon turnstile device is capable of producing a stream of regulated and directed single pairs of photons with opposite circular polarizations. This device operates by injecting pairs of electrons and holes, alternately, into a single quantum dot, where they combine to form photons. The device will efficiently and reliably produce a directed beam of such photons at regular time intervals. It will be able to operate at high frequency and at high temperature. Such a stream of regulated photon pairs will be useful in quantum cryptography, quantum computing, low-power optical communications, as a light standard, and in many other areas of technology and fundamental science.


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Santori, Charles. (2004). Quantum-dot photon turnstile device (U.S. Patent No. 6728281). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6728281

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