Stokes radiation results from lower-frequency scattering, and anti-Stokes radiation results from higher-frequency scattering.
A laser is used in the type of spectroscopy that results from this effect because the scattering intensity is low. In this effect, Rayleigh radiation is the component of scattered radiation in the forward direction of a beam of light passing through a transparent medium with the same frequency as the incident beam. Stokes radiation results from lower-frequency scattering, and anti-Stokes radiation results from higher-frequency scattering. FTP, identify this effect which explains the scattering of light, elucidated in 1928 by an Indian physicist.
A laser is used in the type of spectroscopy that results from this effect because the scattering intensity is low.
{Raman} effect