Luminescence of calcium tungstate crystals

  title={Luminescence of calcium tungstate crystals},
  author={Michael J. Treadaway and Richard C. Powell},
Fluorescence, excitation, and pulsed fluorescence measurements have been made on a single crystal of CaWO4 over a wide temperature range. The temperature dependences of the integrated fluorescence intensities and lifetimes were obtained for different excitation wavelengths. A sharp increase in the fluorescence lifetimes is observed below about 75°K and zero‐phonon lines can be observed. These results are used to formulate a model for the tungstate luminescent center based on the WO42− ion in a… CONTINUE READING


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