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:
May. 25, 2004
Filed:
Jun. 21, 2002
Applicant:
Inventor:
Pierre Simon Joseph Berini, Ottawa, CA;
Assignee:
Spectalis Corp., Nepean, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/10 ; G02B 6/12 ;
U.S. Cl.
CPC ...
G02B 6/10 ; G02B 6/12 ;
Abstract
An optical device comprises a waveguide structure formed by a strip ( ) of a material having a relatively high free charge carrier density surrounded by a material having a relatively low free charge carrier density. The strip has finite width (W) and thickness (t) of the same order with dimensions such that optical radiation having a wavelength in a predetermined range couples to the strip and propagates along the length of the strip as a plasmon-polariton wave. Preferably the width and thickness are substantially equal and less than about 300 nm.