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:
Apr. 05, 2011
Filed:
Feb. 28, 2008
Seok Ho Song, Seoul, KR;
Seok Ho Song, Seoul, KR;
Abstract
The present invention provides a long-range surface plasmon optical waveguide sensor which has a reduced loss of an electromagnetic wave, an increased sensitivity and limitation of detection and a high analysis speed, and enables fabrication of a sensor of various sizes such as a small-sized or lightweight system, etc. To this end, the long-range surface plasmon optical waveguide sensor, comprising: a sensor section, wherein the sensor section comprises a substrate, a first dielectric layer stacked on the substrate, a metal thin film stacked on the first dielectric layer, a second dielectric layer stacked on the metal thin film and having a channel penetratingly formed therein in such a fashion that the top surface of the metal thin film is partially exposed into the channel, a metal strip stacked on the second dielectric layer in such a fashion that the underside thereof is partially exposed into the channel, and a third dielectric layer stacked on the metal strip; a light source section for inducing a surface plasmon resonance between the metal thin film and the metal strip; and a detection section for detecting and analyzing a change of light according to the surface plasmon resonance.