resonance fluorescence

physics

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July 13, 2026

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Resonance fluorescence, also known as resonance radiation, is a type of fluorescence where atoms or molecules emit radiation of the same wavelength as the radiation that excited them. This phenomenon is closely related to electronic absorption spectra and involves absorbing radiation, losing some energy, and then emitting radiation at a lower frequency.12

Specifically, resonance fluorescence occurs rapidly, within about one nanosecond, as the system decays back to its original lower energy state. This process is often observed in monatomic gases and many organic molecules, particularly aromatic systems that absorb light in the visible and near-ultraviolet ranges.2

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spectroscopy
Fluorescence
…state, the process is called resonance fluorescence and occurs rapidly, in about one nanosecond. Resonance fluorescence is generally observed for monatomic gases and for many organic molecules, in particular aromatic systems that absorb in the visible and near-ultraviolet regions. For many molecules, especially aromatic compounds whose electronic absorption spectra lie…
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…state, the process is called resonance fluorescence and occurs rapidly, in about one nanosecond. Resonance fluorescence is generally observed for monatomic gases and for many organic molecules, in particular aromatic systems that absorb in the visible and near-ultraviolet regions. For many molecules, especially aromatic compounds whose electronic absorption spectra lie…
Read More