Single-photon timing

{
  "id": "MLC-T-CHM-010898",
  "term": "Single-photon timing",
  "field": "Chemistry",
  "definition": "A highly sensitive technique used to measure the time-resolved fluorescence decay of a sample by detecting individual photons emitted after pulsed excitation. It relies on the statistical accumulation of arrival times of single photons relative to the excitation pulse. This method provides precise measurements of fluorescence lifetimes, typically in the picosecond to nanosecond range.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "channel",
    "diode laser",
    "excited state",
    "fluorescence",
    "lamp",
    "laser",
    "mode-locked laser",
    "recovery",
    "photon counting"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 420 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/single-photon-timing/"
}