Materials, Photonic Devices, and Sensors

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

[+] Author Affiliations
Alexandre O. Silva

EAD-UFRPE, Recife, PE, 52171/900, Brazil

Artur Gouveia-Neto

Instituto de Física–UFAL, Maceió, AL, 57072/900, Brazil

Luciano A. Bueno

Universidade de Sorocaba, Sorocaba, SP, 18060/501, Brazil

Opt. Eng. 55(1), 017101 (Jan 06, 2016). doi:10.1117/1.OE.55.1.017101
History: Received September 11, 2015; Accepted December 2, 2015
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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 H11/22I15/24, S3/24I15/24 e F9/24I15/24, respectively, was readily observed. In the Pr3+/Yb3+-codoped system, emission peaks around 485, 530, 610, and 645, which were ascribed to the P03HJ3 (J=4,5,6) and P03FJ3 (J=2,3,4) transitions, respectively, were observed. The population of the praseodymium P03 emitting level was accomplished through a combination of ground-state absorption of Yb3+ ions at F7/22, energy-transfer Yb3+(F5/22)Pr3+(H43), and excited-state absorption of Pr3+ ions provoking the G41P03 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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

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", Opt. Eng. 55(1), 017101 (Jan 06, 2016). ; http://dx.doi.org/10.1117/1.OE.55.1.017101


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