Radiation trapping

{
  "id": "MLC-T-CHM-009831",
  "term": "Radiation trapping",
  "field": "Chemistry",
  "definition": "The re-absorption of emitted photons by other atoms or molecules within the same medium before they can escape. This phenomenon effectively increases the apparent lifetime of excited states because the energy is repeatedly absorbed and re-emitted. It is particularly noticeable in high-density atomic or molecular vapors.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "lamp",
    "lifetime",
    "resonance radiation",
    "trapping"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 410 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/radiation-trapping/"
}