DEVICE AND METHOD FOR OBSERVING AND FOR MEASURING RAMAN SCATTERING

摘要

The present invention relates to a method and optical device for Raman spectroscopy and for observing a sample (7), said device including an optical means for stacking an excitation laser beam (1) having a spectral band B 0 and an observation beam (2) having a spectral band B V so as to form a combined excitation and observation incident beam, and an optical separation means arranged in the path of a collected beam for scattering on the sample (7) and including a first filtering means (12), a second filtering means (13) capable of spatially separating said collected beam into a first secondary beam and two tertiary beams, each of which includes a spectral band selected from the spectral band B 0 of the laser, the spectral band B V of the observation beam, and the spectral band B R of the Raman scattering beam, respectively.