Yb3+-doped CaF2 cubic fluoride crystal: spectroscopic properties, concentration quenching analysis, and laser optimization

2007 ◽  
Author(s):  
G. Boulon ◽  
M. Ito ◽  
Y. Guyot ◽  
C. Goutaudier ◽  
A. Brenier ◽  
...  
Keyword(s):  
Spectroscopic Properties ◽  
Concentration Quenching ◽  
Fluoride Crystal ◽  
Quenching Analysis

Spectroscopic properties, concentration quenching, and laser investigations of Yb^3+-doped calcium aluminosilicate glasses

2011 ◽  
Vol 28 (10) ◽  
pp. 2510 ◽  
Author(s):  
Yannick Guyot ◽  
Alysson Steimacher ◽  
Marcos P. Belançon ◽  
Antonio N. Medina ◽  
Mauro L. Baesso ◽  
...  
Keyword(s):  
Spectroscopic Properties ◽  
Concentration Quenching ◽  
Aluminosilicate Glasses ◽  
Calcium Aluminosilicate

Spectroscopic properties, concentration quenching and Yb3+ site occupations in vacancied scheelite-type molybdates

2016 ◽  
Vol 169 ◽  
pp. 755-764 ◽  
Author(s):  
M. Guzik ◽  
E. Tomaszewicz ◽  
Y. Guyot ◽  
J. Legendziewicz ◽  
G. Boulon
Keyword(s):  
Spectroscopic Properties ◽  
Concentration Quenching

scholarly journals A LUMINESCENCE PROPERTIES OF Tb, Sm CO-DOPED IN ALKALI ALUMINOBORATE GLASSES

2019 ◽  
Vol 35 (1) ◽  
Author(s):  
Ngoc Tran
Keyword(s):  
Emission Intensity ◽  
Spectroscopic Properties ◽  
Concentration Quenching ◽  
Quenching Mechanism ◽  
Light Emitting ◽  
Quenching Effect ◽  
White Light Emitting Diodes ◽  
Concentration Quenching Effect ◽  
Co Doped ◽  
Color Emission

 Spectroscopic properties of Tb3+ and Sm3+ ions co-doped in alkali aluminoborate glasses (70-x-y)B2O3.28Li2O.2Al2O3.xSm2O3.yTb2O3 (ABL:Tb,Sm) fabricated by melting method have been studied. The emission intensity of Tb3+ or Sm3+ in ABL:Tb or ABL:Sm glasses is influenced by the Tb3+ or Sm3+ doping content, and the optimum concentrations of Tb3+ and Sm3+ are 0.75 mol% and 1.0 mol%, respectively. The concentration quenching effect of Tb3+ or Sm3+ in ABL:Tb,Sm glasses occurs, and the concentration quenching mechanism is f-f interaction for either Tb3+/Sm3+. The ABL:Tb,Sm glasses can produce color emission from green to red by properly tuning the relative ratio between Tb3+ and Sm3+, the emission intensity of Tb3+/Sm3+ in ABL:Tb,Sm glasses can be enhanced by the energy transfer from Tb3+/Tb3+ and Sm3+/Sm3+. The results indicate that ABL:Tb,Sm may be a promising double emission for white light emitting diodes.

scholarly journals Preparation and spectroscopic properties of Ca2MgTeO6:Tm3+ blue-emitting tellurate phosphors

2020 ◽  
Vol 213 ◽  
pp. 01034
Author(s):  
Sumeng Jiang ◽  
Fanhua Zeng ◽  
Hui Liu ◽  
Yan Duan ◽  
Bin Deng
Keyword(s):  
Doping Concentration ◽  
Blue Emission ◽  
Dipole Interaction ◽  
Spectroscopic Properties ◽  
Concentration Quenching ◽  
Quenching Mechanism ◽  
X Ray ◽  
Chromaticity Coordinates ◽  
Cie Chromaticity ◽  
Optimum Doping Concentration

Various novel Ca2MgTeO6:Tm3+ blue-emitting tellurate materials were synthesized via solid-state reaction. The structure and phase purity of prepared Ca2MgTeO6:xTm3+ (x = 0.0025-0.10 mol) were examined by X-ray powder diffraction. The Ca2MgTeO6:Tm3+ phosphors emit blue emission at 359 nm excitation. The optimum doping concentration was 0.02 mol. The concentration quenching mechanism in the Ca2MgTeO6 host was due to the electric dipole-dipole interaction. The The CIE chromaticity coordinates of Ca2MgTeO6:Tm3+ phosphors located in the blue region. These results validated the Ca2MgTeO6:Tm3+ tellurate phosphor can be used as good blue-emitting candidate for W-LEDs.

Crystal growth, Yb3+spectroscopy, concentration quenching analysis and potentiality of laser emission in Ca1 XYbXF2+X

2004 ◽  
Vol 16 (8) ◽  
pp. 1501-1521 ◽  
Author(s):  
Masahiko Ito ◽  
Christelle Goutaudier ◽  
Yannick Guyot ◽  
Kheirreddine Lebbou ◽  
Tsuguo Fukuda ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Laser Emission ◽  
Concentration Quenching ◽  
Quenching Analysis

Evaluation of Laser Potentialities from Concentration Quenching Analysis in Yb3+-Doped Cubic Crystals

2019 ◽  
Vol 25 (9) ◽  
pp. 271-275
Author(s):  
Georges Boulon ◽  
Yannick Guyot ◽  
Akira Yoshikawa
Keyword(s):  
Concentration Quenching ◽  
Cubic Crystals ◽  
Quenching Analysis

scholarly journals Spectroscopic and Structural Analysis of Cu2+-Induced Fluorescence Quenching of ZsYellow

Biosensors ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 29 ◽  
Author(s):  
In Jung Kim ◽  
Yongbin Xu ◽  
Ki Hyun Nam
Keyword(s):  
Structural Analysis ◽  
Fluorescence Quenching ◽  
Fluorescent Protein ◽  
Fluorescent Proteins ◽  
Yellow Fluorescent Protein ◽  
Fluorescence Emission ◽  
Spectroscopic Properties ◽  
Dependent Manner ◽  
Quenching Analysis ◽  
High Degree

Fluorescent proteins exhibit fluorescence quenching by specific transition metals, suggesting their potential as fluorescent protein-based metal biosensors. Each fluorescent protein exhibits unique spectroscopic properties and mechanisms for fluorescence quenching by metals. Therefore, the metal-induced fluorescence quenching analysis of various new fluorescent proteins would be important step towards the development of such fluorescent protein-based metal biosensors. Here, we first report the spectroscopic and structural analysis of the yellow fluorescent protein ZsYellow, following its metal-induced quenching. Spectroscopic analysis showed that ZsYellow exhibited a high degree of fluorescence quenching by Cu2+. During Cu2+-induced ZsYellow quenching, fluorescence emission was recovered by adding EDTA. The crystal structure of ZsYellow soaked in Cu2+ solution was determined at a 2.6 Å resolution. The electron density map did not indicate the presence of Cu2+ around the chromophore or the β-barrel surface, which resulted in fluorescence quenching without Cu2+ binding to specific site in ZsYellow. Based on these results, we propose the fluorescence quenching to occur in a distance-dependent manner between the metal and the fluorescent protein, when these components get to a closer vicinity at higher metal concentrations. Our results provide useful insights for future development of fluorescent protein-based metal biosensors.

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