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:
Mar. 24, 2015
Filed:
May. 23, 2011
Lawrence Chi-man Wu, Hong Kong, CN;
Siu Pang NG, Hong Kong, CN;
Ho Pui Ho, Hong Kong, CN;
Shu Yuen Wu, Hong Kong, CN;
Lawrence Chi-man Wu, Hong Kong, CN;
Siu pang Ng, Hong Kong, CN;
Ho Pui Ho, Hong Kong, CN;
Shu Yuen Wu, Hong Kong, CN;
The Chinese University of Hong Kong, Hong Kong, CN;
City University of Hong Kong, Hong Kong, CN;
Abstract
Disclosed are optical sensing devices and methods for detecting samples using the same. The optical sensing device comprises a source unit configured to generate a polychromatic light beam containing p-polarized and s-polarized components; an interferometric unit configured to split the light beam into a probe beam passing a first path and a reference beam passing a second path and to recombine the probe beam output from the first path and the reference beam output from the second path; a sensing unit disposed in the first path to introduce a first SPR effect associated with a target sample to the probe beam; and a detection unit configured to detect target sample characteristics by obtaining an intensity spectrum of the recombined light beam. The introduction of a polychromatic light source in the optical sensing device increases the detection dynamic range and the detection sensitivity.