The Effect of Collisions upon the Doppler Width of Spectral Lines
- 15 January 1953
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 89 (2) , 472-473
- https://doi.org/10.1103/physrev.89.472
Abstract
Quantum mechanically the Doppler effect results from the recoil momentum changing the translational energy of the radiating atom. The assumption that the recoil momentum is given to the radiating atom is shown to be incorrect if collisions are taking place. If the collisions do not cause broadening by affecting the internal state of the radiator, they result in a substantial narrowing of the Doppler broadened line.Keywords
This publication has 2 references indexed in Scilit:
- The Pressure Broadening of Spectral LinesPhysical Review B, 1946
- Quantum Theory of RadiationReviews of Modern Physics, 1932