Photon irradiance

{
  "id": "MLC-T-CHM-013399",
  "term": "Photon irradiance",
  "field": "Chemistry",
  "definition": "The photon flux incident on a surface per unit area, often expressed in units of photons per square meter per second. It describes the power of incident light in terms of the number of photons. This quantity is used to characterize light sources in photochemical experiments.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "Avogadro constant",
    "angle",
    "photon fluence rate",
    "photon radiance",
    "visible"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 396 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photon-irradiance/"
}