The Radiation Effect Mechanism of Some Rare Earth Doped BaF2 Crystal

1994 ◽  
Vol 348 ◽  
Author(s):  
Gu Mu ◽  
Chen Lingyan ◽  
Du Jie ◽  
Xiang Kaihua ◽  
Chen Gang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Energy Level ◽  
Radiation Effect ◽  
Effect Mechanism ◽  
Effect Model ◽  
Baf2 Crystal ◽  
Rare Earth Doped ◽  
The Eu

ABSTRACTIn this paper, we used the Discrete Variational Xα, (DV-Xα) method to calculate the energy level of some rare earth doped BaF2 crystals and indicated that the Eu, Dy and Yb elements will change their valence from +3 to +2 under irradiation and thus change the optical properties of the crystals.The results show that this radiation effect model presented agree well with experiments.

Optical Properties of Rare Earth Doped SrS Phosphor: A Review

2016 ◽  
Vol 46 (2) ◽  
pp. 687-708 ◽  
Author(s):  
Ayush Khare ◽  
Shubhra Mishra ◽  
D. S. Kshatri ◽  
Sanjay Tiwari
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Rare Earth Doped

Structure and optical properties of rare earth doped Y2O3 waveguide films derived by sol–gel process

2004 ◽  
Vol 458 (1-2) ◽  
pp. 274-280 ◽  
Author(s):  
H. Guo ◽  
W. Zhang ◽  
L. Lou ◽  
A. Brioude ◽  
J. Mugnier
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Sol Gel ◽  
Sol Gel Process ◽  
Rare Earth Doped

Influence of the Annealing Ambient on Structural and Optical Properties of Rare Earth Implanted GaN

2005 ◽  
Vol 892 ◽  
Author(s):  
Katharina Lorenz ◽  
E. Nogales ◽  
R. Nédélec ◽  
J. Penner ◽  
R. Vianden ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Room Temperature ◽  
Rutherford Backscattering Spectrometry ◽  
Strong Increase ◽  
Structural And Optical Properties ◽  
Nitrogen Gas ◽  
Higher Temperature ◽  
The Eu ◽  
The Rare Earth

AbstractGaN films were implanted with Er and Eu ions and rapid thermal annealing was performed at 1000, 1100 and 1200 °C in vacuum, in flowing nitrogen gas or a mixture of NH3 and N2. Rutherford backscattering spectrometry in the channeling mode was used to study the evolution of damage introduction and recovery in the Ga sublattice and to monitor the rare earth profiles after annealing. The surface morphology of the samples was analyzed by scanning electron microscopy and the optical properties by room temperature cathodoluminescence (CL). Samples annealed in vacuum and N2 already show the first signs of surface dissociation at 1000 °C. At higher temperature, Ga droplets form at the surface. However, samples annealed in NH3 + N2 exhibit a very good recovery of the lattice along with a smooth surface. These samples also show the strongest CL intensity for the rare earth related emissions in the green (for Er) and red (for Eu). After annealing at 1200 °C in NH3+N2 the Eu implanted sample reveals the channeling qualities of an unimplanted sample and a strong increase of CL intensity is observed.

Nanostructured rare earth doped Nb 2 O 5 : Structural, optical properties and their correlation with photonic applications

2016 ◽  
Vol 170 ◽  
pp. 707-717 ◽  
Author(s):  
Rafael Ramiro Pereira ◽  
Felipe Thomaz Aquino ◽  
Alban Ferrier ◽  
Philippe Goldner ◽  
Rogéria R. Gonçalves
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Rare Earth Doped

Rare-Earth Doped Epitaxial InGaP and its Optical Properties

1996 ◽  
Vol 422 ◽  
Author(s):  
B. W. Wessels
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Rare Earth ◽  
Transfer Processes ◽  
Rare Earth Doped ◽  
Rare Earth Impurities

AbstractThe optical properties of rare-earth impurities in InGaP and the factors which influence their luminescence efficency are presented. Basic energy transfer processes are described. Practical devices that utilize characteristic rare-earth luminescence are reported.

Structure, phase transitions and optical properties of pure and rare earth doped BaCeO3, SrCeO3 prepared by inductive melting

1997 ◽  
Vol 97 (1-4) ◽  
pp. 465-470 ◽  
Author(s):  
B.-T Melekh ◽  
V.M Egorov ◽  
Yu.M Baikov ◽  
N.F Kartenko ◽  
Yu.N Filin ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Phase Transitions ◽  
Structure Phase ◽  
Rare Earth Doped
Sign in / Sign up

Export Citation Format

Share Document