Methods for performing a Raman spectroscopy measurement on a sample and Raman spectroscopy systems
US11796475B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Nov 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0833
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described a method for performing a Raman spectroscopy measurement on a sample. The method generally has sequentially illuminating an area of said sample with first and second excitation signals, said first excitation signal being slightly spectrally spaced-apart from said second excitation signal, resulting in said area sequentially emitting first and second emission signals; upon receiving said first emission signal, measuring a first intensity value being indicative of optical intensity of said first emission signal within at least a detection band; upon receiving said second emission signal, measuring a second intensity value being indicative of optical intensity of said second emission signal within said detection band; and performing said Raman spectroscopy measurement by comparing said first intensity value to said second intensity value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.