Gain without population inversion in two-level atoms
- 1 September 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 16 (3) , 1136-1140
- https://doi.org/10.1103/physreva.16.1136
Abstract
For the case in which laser radiation interacts with two levels of an atom, it is shown that there can be gain, even when there is no population inversion, because of recoil effects. The effect of recoil on certain precision measurements is also shown.Keywords
This publication has 3 references indexed in Scilit:
- Observation of Stimulated Emission of Radiation by Relativistic Electrons in a Spatially Periodic Transverse Magnetic FieldPhysical Review Letters, 1976
- Theory of Gas Lasers and Its Application to an ExperimentPhysical Review A, 1970
- Theory of an Optical MaserPhysical Review B, 1964