Method of using thin-clad near infrared transparent optical glass fibers as evanescent wave sensors
US6198861A · kind A · utility
5Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Jan 7, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/7703
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of analyzing a chemical reaction in a material including the steps of embedding in a material an optical fiber having a cladding along substantially the entire length thereof that is in contact with the material, transmitting light through the optical fiber, and performing evanescent wave spectroscopy on the light transmitted through the optical fiber. The optical fiber preferably has a core 10-30 .mu.m in diameter and a cladding that is on the order of 1 .mu.m thick.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.