Solid-state laser Fourier-Transform Raman Spectrometer
US5351121A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Jan 27, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1673
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Fourier Transform Raman Spectrometer system includes a folded V laser cavity. A first leg of the folded V laser cavity is defined by a highly reflective end mirror and a dichroic fold mirror and a second leg of the folded V laser cavity is defined by the fold mirror and an output coupler. A solid-state laser gain medium is disposed in the first leg of the folded V laser cavity and is pumped by a pump source aligned with the optical path of the first leg of the laser cavity and radiating through the fold mirror. The fold mirror is highly transmissive at the wavelength of pump radiation from the pump source and highly reflective at the laser output wavelength. An output beam from the laser is passed through a tuneable filter comprising an acousto-optic device and is directed at a sample to be analyzed. Light reflected from the sample is directed to a Raman Spectrometer for analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.