Patent · US Active

Optical sensing system based on a micro-array structure

US7869044B2 · kind B2 · utility

2Cited by
9References
21Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 16, 2008
Grant dateJan 11, 2011
Priority date—
Expiry dateDec 18, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N21/253
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An optical sensing system includes an optical sensor that includes a substrate having an upper surface and a plurality of tapered walls on the substrate, wherein at least one of the tapered walls is aligned along a longitudinal direction, wherein the plurality of tapered walls comprise sloped surfaces oriented at oblique angles relative to the upper surface, wherein the sloped surfaces are configured to adsorb molecules of a chemical sample, a light source configured to emit an incident light beam to impinge the plurality of tapered walls adsorbed with molecules of the chemical sample; and a detector that can collect light scattered by the plurality of tapered walls to allow a determination of the sample chemical.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.