Micro integrated planar optical waveguide type SPR sensor
US7920267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/0346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated optical waveguide type surface plasmon resonance (SPR) sensor having an optical waveguide with a corresponding SPR sensing area, photodetectors, and wavelength tunable laser or any kind of external tunable laser source/coupler formed on a substrate. In an embodiment, the laser is a wavelength tunable laser and optionally, the integrated device may include a power source on the substrate for providing a electric power to the wavelength tunable laser and the photodetectors, or a circuit for signal processing, or a microfluidic structure for routing a target sample to the SPR sensor area. The microfluidic structure optionally includes a mixer or a reaction chamber for mixing and allowing a physical or chemical reaction to occur, respectively. In an embodiment, plural planar integrated optical waveguide type SPR sensors may be fabricated on a substrate to form an array of SPR sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.