Optical spectroscopy of Mn2SiO4 crystals

15 January 1986

journal article
research article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 84 (2), 657-661
https://doi.org/10.1063/1.450560

Abstract

The temperature dependences of the fluorescence intensities and lifetimes of Mn₂SiO₄ and the results of time‐resolved spectroscopy measurements on this material are reported. A model is developed to explain the results in terms of thermally activated migration of Mn²⁺ excitons terminating on deep trapping centers. Fiber growth techniques are shown to decrease the concentration of fluorescence quenching centers in this material, and dilution with Mg or Ca ions is found to decrease the efficiency of the quenching process. Four‐wave mixing results suggest the presence of laser‐induced photoionization processes in these crystals.

Keywords

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