Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2012-04-01

Yb3+ sensitized Tm3+ upconversion in tellurite lead oxide glass.

Deepak Kumar Mohanty, Vineet Kumar Rai, Y Dwivedi

Index: Spectrochim. Acta. A. Mol. Biomol. Spectrosc. 89 , 264-7, (2012)

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Abstract

Triply ionized thulium/thulium--ytterbium doped/codoped TeO2-Pb3O4 (TPO) glasses have been fabricated by classical quenching method. The upconversion emission spectra in the Tm3+/Tm3+-Yb3+ doped/codoped glasses upon excitation with a diode laser lasing at ∼980 nm has been studied. Effect of the addition of the Yb3+ on the upconversion emission intensity in the visible and near infrared regions of the Tm3+ doped in TPO glass has been studied and the processes involved explored.Copyright © 2011 Elsevier B.V. All rights reserved.