Post dispersion spatially filtered Raman spectrometer
US7327453B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | May 15, 2006 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jun 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/399
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To achieve a given spectral resolution with reduced detector size and commercially available pixel pitches, the Raman spectrum is shifted across the detector array such as by one of the following methods: 1) tuning the excitation wavelength; 2) rotating the grating; 3) displacing the effective input slit (fiber) and acquiring the spectrum under stepped displacement conditions; and 4) displacement of a lens relative to input fiber to displace effective input slit relative to the detector. A composite spectrum is formed and deconvolution of the entrance aperture image and/or pixel masking is then used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.