Three-photon contributions in optically pumped lasers
Abstract
A signal flow graph representation of the density matrix equations appropriate to a serial three-wave interaction is introduced, from which perturbation theory and AC Stark shift information may be extracted. The conditions for a large interaction cross section for the three-photon transition are deduced and applied to selected experimental situations with the main conclusion being that the effect may be present in a large number of CW and pulsed experiments.
- Publication:
-
International Journal of Infrared and Millimeter Waves
- Pub Date:
- March 1980
- DOI:
- 10.1007/BF01007064
- Bibcode:
- 1980IJIMW...1...27D
- Keywords:
-
- Far Infrared Radiation;
- Infrared Lasers;
- Multiphoton Absorption;
- Optical Pumping;
- Signal Flow Graphs;
- Continuous Wave Lasers;
- Electron Transitions;
- Perturbation Theory;
- Pulsed Lasers;
- Stark Effect;
- Wave Interaction;
- Lasers and Masers;
- three-photon interactions;
- density matrix;
- far infrared lasers;
- signal flow graphs