Investigation of Paramagnetic Systems to Determine Their Potential as Continuously Tunable Far Infrared Lasers

摘要

High resolution laser magnetospectroscopy using optically-pumped far-infrared (FIR) lasers has been performed on the FIR electronic transitions of CaF2:Dy(2+). The transition strengths and linewidths of the 1 to 7, 1 to 8, 1 to 7 transitions have been determined from the experimental curves of transmission vs. magnetic field. The theoretical variation of transition strength with magnetic field and orientation has been computed for all transitions. In general, the agreement between theory and experiment for the transition strengths is good. The results of the transition strength calculations are used to determine the best pumping schemes for a tunable FIR laser using CaF2:Dy(2+).