Raman scattering of
electromagnetic radiation in which the scattered radiation has lesser energy (lesser
wavenumber) than the exciting radiation.
See also: anti-Stokes Raman scattering
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 764 (https://doi.org/10.1515/pac-2019-0203)