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 [Terms] [Paper]
Citation: 'Raman wavenumber shift' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08671 RIS BibTex EndNote
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