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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
  • Technical Digest (Optica Publishing Group, 2003),
  • paper QThG5

Luminescence Quenching in a Random Medium

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Abstract

We have investigated the origin of quenching of visible photoluminescence in Yb,Er:Yttria nanopowders. We show that this phenomenon results from a thermal nonlinearity mediated by non-radiative processes at high temperatures, using the results of luminescence decay measurements together with a simple theoretical model.

© 2003 Optical Society of America

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