Journal Article10.1016/J.JQSRT.2005.05.081
Energy transfer and infrared-to-visible upconversion luminescence of Er3+/Yb3+-codoped halide modified tellurite glasses
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TL;DR: In this article, the energy transfer and frequency upconversion spectroscopic properties of Er3+-doped and Er 3+/Yb3+codoped halide modified tellurite glasses upon excitation with 808 and 978 nm laser diode were investigated.
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Abstract: We report on the energy transfer and frequency upconversion spectroscopic properties of Er3+-doped and Er3+/Yb3+-codoped TeO2-ZnO-Na2O-PbCl2 halide modified tellurite glasses upon excitation with 808 and 978 nm laser diode. Three intense emissions centered at around 529, 546 and 657 nm, alongwith a very weak blue emission at 4 10 nm have clearly been observed for the Er3+/Yb3+-codoped halide modified tellurite glasses upon excitation at 978 nm and the involved mechanisms are explained. The quadratic dependence of fluorescence on excitation laser power confirms the fact that the two-photon contribute to the infrared to green-red upconversion emissions. And the blue upconversion at 410 nm involved a sequential three-photon absorption process. (c) 2005 Elsevier Ltd. All rights reserved.
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Citations
Yb3+ sensitized Er3+ doped La2O3 phosphor in temperature sensors and display devices
Riya Dey,Vineet Kumar Rai +1 more
TL;DR: The frequency upconversion emissions in the Er(3+) doped/codoped hexagonal shaped La2O3 phosphor characterized by X-ray diffraction upon excitation with 980 nm and 800 nm CW lasers have been investigated and it is noted that the present phosphor material can be used in making temperature sensing device upto 600 K.
230
Er3+/Yb3+co-doped bismuth molybdate nanosheets upconversion photocatalyst with enhanced photocatalytic activity
TL;DR: In this article, the microwave hydrothermal synthesis of Er{sup 3+}/Yb{sup3+} co-doped Bi{sub 2}MoO{sub 6} upconversion photocatalyst was reported.
87
Temperature-dependent luminescence and temperature-stimulated NIR-to-VIS up-conversion in Nd3+-doped La2O3–Na2O–ZnO–TeO2 glasses
TL;DR: In this article, the optical properties of Nd3+-doped telluride glasses were investigated between 298 and 700 K. The thermal behavior i.e. glass transition and crystallization temperatures were studied by using TGA-DTA technique.
81
Co-operative downconversion luminescence in Tm 3+ /Yb 3+ : SiO 2 -Al 2 O 3 -LiF-GdF 3 glasses
TL;DR: In this article, an efficient near infrared quantum cutting with optimal quantum efficiency approaching 187% has been demonstrated, by exploring the co-operative downconversion mechanism from Tm3+ to Yb3+, with 467?nm (Tm3??3H6? 1G4) excitation wavelength.
68
Structural and spectroscopic behavior of Er3 +/Yb3 + co-doped boro-tellurite glasses
TL;DR: A new series of Er3+/Yb3++ co-doped boro-tellurite glasses with the chemical composition (30−−x−−y) were prepared by conventional melt quenching technique and their structural and spectroscopic behaviors were studied through recording XRD, FTIR, Raman, UV-Vis-NIR and luminescence measurements as discussed by the authors.
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Power dependence of upconversion luminescence in lanthanide and transition-metal-ion systems
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Tellurite glass: a new candidate for fiber devices
TL;DR: In this paper, the physical properties of R2O-ZnO-TeO2 glasses have been studied for their feasibility for fiber drawing and rare earth doping and a tellurite glass fiber with less than 1 dB/m loss has been made by the rod-in-tube method.
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Erbium-doped tellurite glass fibre laser and amplifier
A. Mori,Yasutake Ohishi,S. Sudo +2 more
TL;DR: Er3+-doped tellurite singlemode fiber is fabricated and signal amplification and laser oscillation are demonstrated for the first time in this article, where a small signal gain of 16 dB at 1560 nm is obtained for a pump power of 130 mW at 978 nm.
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H Berthou,C K Jörgensen +1 more
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