Optical waveguide surface plasmon resonance sensor
US7679749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2008 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Aug 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/553
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical waveguide SPR sensor is adapted for differential measurement. The optical waveguide SPR sensor includes a base, a bottom layer, and at least one set of optical waveguide layers. The set of the optical waveguide layers includes a measuring optical waveguide channel and a reference optical waveguide channel. The measuring optical waveguide channel includes an SPR sensing film layer. The measuring optical waveguide channel and the reference optical waveguide channel are independently configured and substantially parallel one to another. The bottom layer has a refractive index higher than a refractive index of the optical waveguide layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.