Polarization of CaF2:Sm3+ Fluorescence

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Abstract
The particular environments which produce two different types of CaF2:Sm3+ fluorescence were deduced from study of the polarization of each spectrum. Either trigonal or tetragonal symmetry was observed and attributed to the local charge compensator associated with each spectral type. Depolarization mechanisms and the effects of secondary impurities on the activator ions are discussed.
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