Radiant exitance

{
  "id": "MLC-T-CHM-009812",
  "term": "Radiant exitance",
  "field": "Chemistry",
  "definition": "The radiant power emitted by a source, divided by the area of the emitting surface. It quantifies the total power density leaving a surface, regardless of direction, and applies to power that is emitted, reflected, or transmitted. Radiant exitance is symbolized by M or Mₑ and is measured in SI units of watts per square meter (W m⁻²).",
  "synonyms": [
    "radiant emittance",
    "exitance",
    "spherical radiant exitance"
  ],
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "radiant power",
    "angle",
    "spectral radiant exitance",
    "wavelength"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 409 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/radiant-exitance/"
}