Fluorescence Studies of Concentrated Mn2+ Systems
This article presents a review of some of the basic optical properties of concentrated Mn2+ systems and includes some recent experimental observations on the system KMnF3. The first three sections describe the general features of the well-known systems MnF2 and RbMnF3. The emphasis is on the spectral and thermal characteristics of the broad bands seen in emission in the 5800–7000 Å res ion. These sections serve as an introduction to the fourth and last section, which deals with our current studies of the crystal KMnF3. This last system is of interest because it presents absorption and excitation properties which are very similar to those of MnF2 and RbMnF3 and yet displays emission properties which are rather different from those of the other systems. Finally, a phenomenological model is given to explain the observations.
KeywordsFluorescence Band Lifetime Data Fluorescence Study Sharp Line Metastable Level
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