The Stokes shift occurs when the energy of the emitted photon is lower than that of the absorbed photon, representing the difference in energy of the two photons.

The Stokes shift is the term used to describe the difference in the wavelength at which a molecule emits light is relative to the wavelength at which the molecule was excited.

Jul 13, 2021 · The Stokes Shift is named after Irish physicist George Gabriel Stokes and is the spectral shift to lower energy between the incident light and the scattered or emitted light after interaction with …

Stokes shift is defined as the phenomenon where the energy of fluorescence emission is less than that of absorption, resulting in emission occurring at longer wavelengths.

What is a Stokes shift? A Stokes shift is the phenomenon where emitted radiation has a lower photon energy (and thus a longer wavelength) than the radiation that was absorbed to cause the emission. …

This difference between the excitation and emission maxima is called the Stokes shift. The magnitude of the Stokes shift is determined by the electronic structure of the fluorophore, and is a characteristic of …

Jul 31, 2025 · Biosensors also rely on the Stokes shift. A change in the environment or target molecule binding can cause a fluorescent probe to emit light at a different wavelength or intensity. This …

Nov 20, 2025 · This relaxation, called the Stokes shift, is why fluorescence emits with a lower energy than the original absorption. It is notable that this relaxation occurs within a single electronic state …

Feb 5, 2024 · When the emitted photon has less energy than the absorbed photon, this energy difference is the Stokes shift. The Stokes shift is primarily the result of two phenomena: vibrational …

Generally, the luminescence occurring at a longer wavelength than the absorption is stronger than the opposite. The latter may be called an anti-Stokes shift. See: coherent radiation