LINE SELECTION IN OFF RESONANTLY PUMPED MULTILEVEL SYSTEMS
In weakly, offresonantly pumped multilevel systems gain is usually observed at the transition frequencies (linecenter lines) and at the pumpoffsetdependent frequencies (Raman lines). Modes developing at these frequencies are subject to strong mutual competition due to several coupling mechanisms. A general sixlevel system is investigated in this paper. Line competition effects are studied in particular in the simplified basic four level cases comprising parallel, cascade, and VLAMBDA subsystems. We predict the type of transitions which survive and ultimately remain active. A comparison with experimental results using farinfrared lasers is made.
Bibliographic Reference: PHYSICAL REVIEW A, VOL. 36 (1987), NO. 2, PP. 669-682
Record Number: 1989126007400 / Last updated on: 1988-02-01
Available languages: en