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Updated: May 25, 2026

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Yb3+ sensitized Tm3+ upconversion in tellurite lead oxide glass
Deepak Kumar Mohanty1, Vineet Kumar Rai, Y Dwivedi
1Laser and Spectroscopy Laboratory, Department of Applied Physics Indian School of Mines, Dhanbad 826004, India.
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.
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