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 7209603 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 24, 2007

Filed:

Sep. 04, 2002
Applicants:

Peter Brent Littlewood, Cambridge, GB;

Alexander L. Ivanov, Cardiff, GB;

Inventors:

Peter Brent Littlewood, Cambridge, GB;

Alexander L. Ivanov, Cardiff, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/335 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The device comprises an optical waveguide and an acoustic wave generating device. The waveguide has an optical band gap and a sharp electronic transition (e.g. an excitonic transition) in the band gap, and the acoustic wave generating device generates acoustic waves within the waveguide. Light passing through the waveguide is of a frequency within the band gap of the waveguide and is nearly resonant with the sharp electronic transition. The wave generating device is arranged to generate acoustic waves so as to induce optical band gas in the polariton spectrum, thereby affecting the transmission of the light passing through the waveguide, the transmission of which is thereby affected.


Find Patent Forward Citations

Littlewood, Peter. (2007). Acousto-optical device based on phonon-induced polaritonic band gaps (U.S. Patent No. 7209603). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7209603

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…