Oscillator strength
Dimensionless oscillator strength indicates the strength of the coupling of a transition between two particular quantum state, such as an atom, and electromagnetic radiation.
The name comes from the semi-classical model of a harmonically linked to the atomic core electron, which is driven by the electric field oscillations ( Lorentz oscillator model ).
The oscillator strength is related to the quantum-mechanical effect of cross-section by:
With
- : Electron mass
- : Speed of light
- : Electric field constant
- : Elementary charge
- : Wavelength.
It is the Thomas -Reiche- Kuhn sum rule.
- Quantum mechanics