Investigation on Luminescent Properties of Rare Earth Doped Mullite Phosphors and the Occupation Site of the Doped Rare Earths

2019 ◽  
Vol 166 (9) ◽  
pp. B3209-B3217 ◽  
Author(s):  
Hirotaka Takahashi ◽  
Yuta Matsushima
Keyword(s):  
Rare Earth ◽  
Rare Earths ◽  
Luminescent Properties ◽  
Rare Earth Doped

scholarly journals Luminescence characteristics of rare-earth-doped barium hexafluorogermanate BaGeF6 nanowires: fast subnanosecond decay time and high sensitivity in H2O2 detection

RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39296-39306 ◽  
Author(s):  
Gibin George ◽  
Machael D. Simpson ◽  
Bhoj R. Gautam ◽  
Dong Fang ◽  
Jinfang Peng ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earths ◽  
Decay Time ◽  
High Sensitivity ◽  
H2o2 Detection ◽  
Highly Sensitive ◽  
Inorganic Scintillators ◽  
Luminescence Characteristics ◽  
Rare Earth Doped

The decay time of BaGeF6 nanowires codoped with rare earths is found in the order of subnanoseconds, being one of the shortest decay time records from inorganic scintillators. Their luminescence emissions are highly sensitive for H2O2 detection.

Luminescent Properties of Rare Earth Doped AlF3-Based Glasses

1991 ◽  
Vol 244 ◽  
Author(s):  
L. R. Copeland ◽  
W. A. Reed ◽  
M. R. Shahriari ◽  
T. Iqbal ◽  
P. Hajcak ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Fibers ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Ion Concentration ◽  
Fluoride Glass ◽  
Oxide Glasses ◽  
Low Loss ◽  
Rare Earth Ion ◽  
Rare Earth Doped

ABSTRACTRare earth ions can easily be incorporated into fluoride glasses in moderate to large concentrations and, due to their low phonon energy, these glasses appear to have many advantages over oxide glasses as hosts for rare earth ions used in optical amplifiers and lasers. We have therefore investigated the optical properties of Pr3+, Pr3+/Yb3+ and Pr3+/Yb3+/Lu3+ doped bulk AIF3-based glass samples as a function of rare earth ion concentration. We find that the addition of 2 wt% of Yb increases the fluorescence of Pr3+ at 1.32 μm by a factor of 35 when excited with 488 nm radiation. The fluorescence intensity and excited state lifetimes are found to be comparable to those measured for Pr in a ZBLAN host. Since it has also been demonstrated that optical fibers drawn from AIF3-based glasses exhibit relatively low loss (< 0.05 dB/m) and posses superior chemical durability compared to other fluotide glasses, it is possible that AIF3 glasses may become the fluoride glass of choice for practical fiber laser and amplifier applications.

Zn2−aGeO4:aRE and Zn2Ge1−aO4:aRE (RE = Ce3+, Eu3+, Tb3+, Dy3+): 4f–4f and 5d–4f transition luminescence of rare earth ions under different substitution

RSC Advances ◽  
2016 ◽  
Vol 6 (104) ◽  
pp. 102183-102192 ◽  
Author(s):  
Qiongyu Bai ◽  
Zhijun Wang ◽  
Panlai Li ◽  
Shuchao Xu ◽  
Ting Li ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earths ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Different Characteristics

Generally, luminescent properties of rare earth ions doped host can be tuned by controlling the host composition, that is, when substituted for different cations of host, the rare earths ions can present different characteristics.

Dielectric and Luminescent Properties of Rare Earth-Doped Ba0.6Sr0.4TiO3 Thin Films

2008 ◽  
Vol 24 (04) ◽  
pp. 695-699
Author(s):  
YU Dao ◽  
◽  
◽  
LIU Qian ◽  
LIU Qing-Feng
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Luminescent Properties ◽  
Rare Earth Doped

Luminescent properties of rare-earth-doped CaWO4phosphor films prepared by the Pechini sol–gel process

2003 ◽  
Vol 15 (29) ◽  
pp. 5157-5169 ◽  
Author(s):  
M L Pang ◽  
J Lin ◽  
S B Wang ◽  
M Yu ◽  
Y H Zhou ◽  
...  
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Luminescent Properties ◽  
Sol Gel Process ◽  
Rare Earth Doped

Rare-earth-doped hybrid siloxane–oxide coatings with luminescent properties

1993 ◽  
Vol 3 (1) ◽  
pp. 111-112 ◽  
Author(s):  
Natalia I. Koslova ◽  
Bruno Viana ◽  
Clément Sanchez
Keyword(s):  
Rare Earth ◽  
Luminescent Properties ◽  
Oxide Coatings ◽  
Rare Earth Doped

scholarly journals Rare Earth Doped Silica Optical Fibre Sensors for Dosimetry in Medical and Technical Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
N. Chiodini ◽  
A. Vedda ◽  
I. Veronese
Keyword(s):  
Radiation Therapy ◽  
Rare Earth ◽  
Optical Fibre ◽  
Rare Earths ◽  
High Energy ◽  
Silica Matrix ◽  
Optical Fibres ◽  
General Description ◽  
Optical Fibre Sensors ◽  
Rare Earth Doped

Radioluminescence optical fibre sensors are gaining importance since these devices are promising in several applications like high energy physics, particle tracking, real-time monitoring of radiation beams, and radioactive waste. Silica optical fibres play an important role thanks to their high radiation hardness. Moreover, rare earths may be incorporated to optimise the scintillation properties (emission spectrum, decay time) according to the particular application. This makes doped silica optical fibres a very versatile tool for the detection of ionizing radiation in many contexts. Among the fields of application of optical fibre sensors, radiation therapy represents a driving force for the research and development of new devices. In this review the recent progresses in the development of rare earth doped silica fibres for dosimetry in the medical field are described. After a general description of advantages and challenges for the use of optical fibre based dosimeter during radiation therapy treatment and diagnostic irradiations, the features of the incorporation of rare earths in the silica matrix in order to prepare radioluminescent optical fibre sensors are presented and discussed. In the last part of this paper, recent results obtained by using cerium, europium, and ytterbium doped silica optical fibres in radiation therapy applications are reviewed.

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