scholarly journals Influence of improved anti-Stokes energy transfer between rare earth ions in ErP5O14 noncrystal on dynamic study

2011 ◽  
Vol 60 (7) ◽  
pp. 077802
Author(s):  
Chen Ying ◽  
Chen Xiao-Bo ◽  
Zhang Hui-Min ◽  
Xu Xiao-Ling ◽  
Wang Ce
Keyword(s):  
Energy Transfer ◽  
Rare Earth ◽  
Rare Earth Ions ◽  
Dynamic Study ◽  
Anti Stokes

Improved anti-Stokes energy transfer between rare earth ions in Er(0.5)Yb(9.5): FOV oxyfluoride vitroceramics explains the strong color reversal

2009 ◽  
Vol 18 (12) ◽  
pp. 5523-5533 ◽  
Author(s):  
Chen Xiao-Bo ◽  
Wang Ce ◽  
Gregory J Salamo ◽  
Naruhito Sawanobori ◽  
Kang Dong-Guo ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rare Earth ◽  
Rare Earth Ions ◽  
Anti Stokes

scholarly journals Enhanced Optical Properties of Germanate and Tellurite Glasses Containing Metal or Semiconductor Nanoparticles

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Cid Bartolomeu de Araujo ◽  
Diego Silvério da Silva ◽  
Thiago Alexandre Alves de Assumpção ◽  
Luciana Reyes Pires Kassab ◽  
Davinson Mariano da Silva
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Rare Earth ◽  
Semiconductor Nanoparticles ◽  
Rare Earth Ions ◽  
Tellurite Glasses ◽  
All Optical ◽  
Gold Nps ◽  
Anti Stokes ◽  
The Rare Earth

Germanium- and tellurium-based glasses have been largely studied due to their recognized potential for photonics. In this paper, we review our recent studies that include the investigation of the Stokes and anti-Stokes photoluminescence (PL) in different glass systems containing metallic and semiconductor nanoparticles (NPs). In the case of the samples with metallic NPs, the enhanced PL was attributed to the increased local field on the rare-earth ions located in the proximity of the NPs and/or the energy transfer from the metallic NPs to the rare-earth ions. For the glasses containing silicon NPs, the PL enhancement was mainly due to the energy transfer from the NPs to the Er3+ions. The nonlinear (NL) optical properties of PbO-GeO2films containing gold NPs were also investigated. The experiments in the pico- and subpicosecond regimes revealed enhanced values of the NL refractive indices and large NL absorption coefficients in comparison with the films without gold NPs. The reported experiments demonstrate that germanate and tellurite glasses, having appropriate rare-earth ions doping and NPs concentration, are strong candidates for PL-based devices, all-optical switches, and optical limiting.

Suppressed energy transfer between different rare earth ions to obtain enhanced and tuned fluorescence by using Janus nanofibers

2021 ◽  
Author(s):  
Ping Wu ◽  
Qianli Ma ◽  
Wensheng Yu ◽  
Jinxian Wang ◽  
Gui-Xia Liu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rare Earth ◽  
Rare Earth Ions ◽  
Native Fluorescence ◽  
Fluorescent Materials ◽  
Negative Effect

Here, we put forward a viewpoint that the energy transfer between different rare earth (RE) ions plays negative effect in RE ions doped white fluorescent materials if the native fluorescence...

scholarly journals Кинетика нарастания ап-конверсионной люминесценции кристалла LiY-=SUB=-0.8-=/SUB=-Yb-=SUB=-0.2-=/SUB=-F-=SUB=-4-=/SUB=- : Tm-=SUP=-3+-=/SUP=- (0.2 at.%) при импульсном возбуждении

2019 ◽  
Vol 61 (5) ◽  
pp. 953
Author(s):  
А.В. Михеев ◽  
Б.Н. Казаков
Keyword(s):  
Regression Analysis ◽  
Energy Transfer ◽  
Rare Earth ◽  
Laser Diode ◽  
Rare Earth Ions ◽  
Experimental Conditions ◽  
Pulsed Excitation ◽  
Transfer Processes ◽  
Dipole Interactions ◽  
Kinetics Of

AbstractThe regression analysis of the rise kinetics of up-conversion luminescence of the LiY_0.8Yb_0.2F_4:Tm^3+ (0.2 at %) crystal is performed. The kinetics curve is obtained with rectangular pulsed excitation by radiation from a laser diode (IR LD) with a wavelength of λ_ p = 933 nm. The most important—in these experimental conditions—mechanisms of the energy transfer from Yb^3+ ions to Tm^3+ ions are established, which are responsible for the transitions between the ground ^3 H _6 and excited ^3 F _4, ^3 H _4, ^1 G _4, ^1 D _2, and ^1 I _6 terms of the Tm^3+ ions. The durations of the relevant energy transfer processes are determined. It is shown that the energy transfer between rare earth ions in the LiY_0.8Yb_0.2F_4:Tm^3+ (0.2 at %) crystal occurs through the dipole–dipole interactions.

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