COMPOSITE MULTISPECTRAL RAMAN SPECTROSCOPY METHOD AND DEVICE

摘要

Disclosed is a Raman spectroscopy device including a source system generating a first excitation light beam at a first excitation frequency, a spectral separation system, a detection system in an observation spectral range, and a calculator generating a first part of the Raman scattering spectrum in a first Raman spectral range extending between a first relative wave number and a second relative wave number. The source system is adapted to generate a second excitation light beam at a second excitation frequency different from the first excitation frequency, the computer generating a second part of the Raman scattering spectrum in a second Raman spectral range, expressed as wave number as a function of the same observation spectral range, the second spectral range extending between a third relative wave number and a fourth relative wave number. Also disclosed is a Raman spectroscopy method.