Net absorption cross-section

{
  "id": "MLC-T-CHM-007839",
  "term": "Net absorption cross-section",
  "field": "Chemistry",
  "definition": "A measure of the effective area that a molecule or atom presents to incident radiation for absorption, accounting for both absorption and stimulated emission processes. This value quantifies the probability of a photon being absorbed by a species. It is typically expressed in units of area, such as square meters per molecule.",
  "synonyms": [
    "absorption cross-section (σ)"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "molar Napierian absorption coefficient"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 667 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/net-absorption-cross-section/"
}