Line-broadening

{
  "id": "MLC-T-CHM-006640",
  "term": "Line-broadening",
  "field": "Chemistry",
  "definition": "The phenomenon where spectral lines in absorption or emission spectroscopy exhibit a finite width rather than being infinitely sharp. This broadening arises from factors such as the Heisenberg uncertainty principle, Doppler effects due to atomic motion, and collisions between particles. The width of a spectral line is often characterized by its full width at half maximum (FWHM).",
  "subject": "Analytical Chemistry",
  "see_also": [
    "spectral line"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 724 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/line-broadening/"
}