Stimulated emission

{
  "id": "MLC-T-CHM-011417",
  "term": "Stimulated emission",
  "field": "Chemistry",
  "definition": "The process by which an excited atom or molecule, when perturbed by an incident photon of appropriate energy, is induced to emit a second photon with identical energy, phase, and direction. This phenomenon is the physical basis for laser operation, where a population inversion is maintained to amplify light. The emitted photon is coherent with the stimulating photon.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "coefficient",
    "einstein",
    "lasing",
    "spontaneous emission"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2279 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/stimulated-emission/"
}