Excitation profile

{
  "id": "MLC-T-CHM-004183",
  "term": "Excitation profile",
  "field": "Chemistry",
  "definition": "A plot showing the intensity of a specific Raman scattering band as a function of the excitation laser's frequency or wavenumber. The profile is generated by measuring the Raman spectrum of a sample using a tunable laser and monitoring a single Raman peak while scanning the laser wavelength. When the excitation frequency approaches an electronic absorption band of the molecule, a dramatic increase in the Raman intensity occurs, a phenomenon known as resonance Raman scattering.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "Raman shift",
    "wavenumber in vacuum"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 746 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/excitation-profile/"
}