Depolarization ratio

{
  "id": "MLC-T-CHM-003025",
  "term": "Depolarization ratio",
  "field": "Chemistry",
  "definition": "The ratio of the intensity of Raman scattered light polarized perpendicular to the incident polarization to the intensity of Raman scattered light polarized parallel to the incident polarization. This value provides information about the symmetry of the vibrational mode responsible for the scattering. For totally symmetric vibrations, the depolarization ratio is typically less than 0.75, while for non-totally symmetric vibrations, it approaches 0.75.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "Raman spectroscopy",
    "electromagnetic radiation",
    "Raman scattering"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 743 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/depolarization-ratio/"
}