Sharp Changes of Fluorescent Light in Ruby as a Function of Applied Magnetic Field

概要

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A large number of small but sharp changes (increases and decreases) of the R.fluorescence in ruby are observed as a function of applied magnetic field between2 K and 77 K. At liquid helium temperatures, these signals hav<: linewidthsmuch narrower than the inhomoueneous linewidth (N0.1 cm-') of the Rl line.All of these signals appear at the fields where the Zeeman splittings irt the excitedstate E('E) and the ground state 'Az satisfy an energy-matching c<cndition forsimultaneous transitions of two or more tons. Two distinct mechanisms are foundto be responsible for the signals : spin-spin cross-relaxation betweert E('E) and'A., and resonant self-trapping of the R. line. From the temperature dependenceof the linewidths of the signals, thermal broadening of E("E) is measured below77 K. Similar signals are observed in the N lines due to energy transfer fromisolated ions to pairs.
社団法人日本物理学会の論文
1981-07-15