Raman wavenumber shift symbol: $\Delta \tilde{\nu}$, units: $\pu{m-1}$, $\pu{cm-1}$

Synonym: Raman shift
https://doi.org/10.1351/goldbook.08671
Wavenumber of exciting electromagnetic radiation minus wavenumber of the scattered radiation.
Notes:
  1. SI unit: \(\pu{m-1}\). Common unit: \(\pu{cm-1}\).
  2. \(\Delta \tilde{\nu}\) is positive for Stokes Raman scattering and negative for anti-Stokes Raman scattering.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 762 (https://doi.org/10.1515/pac-2019-0203)