Method and system removing fluorescence and other slowly varying baseline in Raman spectra
US7177022B2 · kind B2 · utility
4Cited by
19References
15Claims
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Key dates
| Filing date | Feb 17, 2006 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Feb 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/39
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A data set processing method for Raman spectroscopy systems using tunable lasers and multielement spectrometers compiles the spectral data set into an array and then estimates the background component, which is usually dominated by sample and optical train fluorescence, detector array dark current signal, fixed-pattern signal, and stray-light signals either modulated or non-modulated by in-path optics. This estimate is used as a baseline correction to the spectral data set to thereby isolate the sample's Raman response.
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