Frequency upconversion luminescence in Yb3+-sensitized Er3+- and Pr3+-codoped PbGeO3:PbF2:xF2 (x = Mg, Ba) glass

Alexandre O. Silva; Artur Gouveia-Neto; Luciano A. Bueno

doi:10.1117/1.OE.55.1.017101

6 January 2016 Frequency upconversion luminescence in Yb³⁺-sensitized Er³⁺- and Pr³⁺-codoped PbGeO₃:PbF₂:xF₂ (x = Mg, Ba) glass

Alexandre O. Silva, Artur Gouveia-Neto, Luciano A. Bueno

Author Affiliations +

Optical Engineering, Vol. 55, Issue 1, 017101 (January 2016). https://doi.org/10.1117/1.OE.55.1.017101

Abstract

The optical properties and energy-transfer upconversion luminescence of Er³⁺- and Pr³⁺/Yb³⁺-codoped PbGeO₃-PbF₂-xF₂ (x=Mg, Ba) glass and glass-ceramic under infrared excitation at 975 nm is investigated. In Er³⁺/Yb³⁺-codoped samples, green (525 and 550 nm) and red (662 nm) luminescence corresponding to the ²H_11/2→⁴I_15/2, ⁴S_3/2→⁴I_15/2 e ⁴F_9/2→⁴I_15/2, respectively, was readily observed. In the Pr³⁺/Yb³⁺-codoped system, emission peaks around 485, 530, 610, and 645, which were ascribed to the ³P₀−³H_J (J=4,5,6) and ³P₀−³F_J(J=2,3,4) transitions, respectively, were observed. The population of the praseodymium ³P₀ emitting level was accomplished through a combination of ground-state absorption of Yb³⁺ ions at ²F_7/2, energy-transfer Yb³⁺(²F_5/2)−Pr³⁺(³H₄), and excited-state absorption of Pr³⁺ ions provoking the ¹G₄−³P₀ transition. The dependence of the upconversion emission on glass composition, pump power, and doping contents was also examined. Glassy and glass-ceramic samples were compared in order to determine the system with better luminescence efficiency.

Citation Download Citation

Alexandre O. Silva, Artur Gouveia-Neto, and Luciano A. Bueno "Frequency upconversion luminescence in Yb³⁺-sensitized Er³⁺- and Pr³⁺-codoped PbGeO₃:PbF₂:xF₂ (x = Mg, Ba) glass," Optical Engineering 55(1), 017101 (6 January 2016). https://doi.org/10.1117/1.OE.55.1.017101

Published: 6 January 2016

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