Remote spectroscopy for raman and brillouin scattering
US5262644A · kind A · utility
179Cited by
13References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for performing Raman and Brillouin spectroscopy remotely. A near-infrared laser is used to irradiate a sample of material to be analyzed. Optical fibers transmit incident radiation from a near-infrared radiation source to the sample, and transmit Raman and Brillouin scattered radiation from the sample to the detecting equipment. The incident radiation is carefully determined so as to avoid fluorescence and to limit optic fiber losses. The invention provides useful information with the use of an interferometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.