anomalously polarized Raman band

https://doi.org/10.1351/goldbook.08569
Raman band with a depolarization ratio greater than \(\pu{0.75}\), as is frequently observed in surface-enhanced resonance Raman spectroscopy.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 738 (https://doi.org/10.1515/pac-2019-0203)