Composite multispectral Raman spectroscopy measurement method and equipment

摘要

The present invention comprises a light source system (2) that produces a first excitation light beam at a first excitation frequency, a spectrum separation system (8), a system for detection in the observed spectrum range (10), and a first. The present invention relates to a Raman spectroscopic measuring apparatus (1) including a computer (12) for generating a first portion of a Raman scattering spectrum in a first Raman spectral range extending between a relative wave number and a second relative wave number. According to the present invention, the light source system is adapted to generate a second excitation light beam at a second excitation frequency different from the first excitation frequency, and the computer as a wavenumber as a function of the same observation spectrum range. It produces a second portion of the Raman scattering spectrum in the second Raman spectral range represented, the second spectral range extending between the third relative wavenumber and the fourth relative wavenumber. The present invention also relates to a Raman spectroscopic measurement method.