Optical micro-cavity sensors
US6661938B2 · kind B2 · utility
18Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Sep 25, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/552
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An integrated optical sensor using optical waveguide micro-cavity resonators. Using a laser and a detector it is possible to detect changes in the position of the resonance position, in wavelength or frequency, of one or more modes of the resonator. The change in resonance can be made dependent on chemicals, which have been adsorbed by chemically or biologically sensitive material provided in close proximity to the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.