scholarly journals Different dominant transitions in holmium and ytterbium codoped oxyfluoride glass and glass ceramics originating from varying phonon energy environments

2017 ◽  
Vol 19 (44) ◽  
pp. 29833-29839 ◽  
Author(s):  
Qunhuo Liu ◽  
Ying Tian ◽  
Caizhi Wang ◽  
Feifei Huang ◽  
Xufeng Jing ◽  
...  
Keyword(s):  
Glass Ceramics ◽  
Phonon Energy ◽  
Oxyfluoride Glass ◽  
Infrared Emissions

Varying phonon energy environments induce different dominant transitions, leading to enhanced visible upconversion and infrared emissions in glass ceramics.

Dopant partitioning influence on the near-infrared emissions of Tm3+ in oxyfluoride glass ceramics

2006 ◽  
Vol 99 (5) ◽  
pp. 053103 ◽  
Author(s):  
F. Lahoz ◽  
J. M. Almenara ◽  
U. R. Rodríguez-Mendoza ◽  
I. R. Martín ◽  
V. Lavín
Keyword(s):  
Near Infrared ◽  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Infrared Emissions

Transparent Oxyfluoride Glass Ceramics

MRS Bulletin ◽  
1998 ◽  
Vol 23 (11) ◽  
pp. 57-62 ◽  
Author(s):  
Matthew J. Dejneka
Keyword(s):  
Rare Earth ◽  
Ground State ◽  
Energy Levels ◽  
Three Dimensional ◽  
Glass Ceramics ◽  
Fiber Amplifiers ◽  
Phonon Energy ◽  
Optical Frequency ◽  
Wavelength Band ◽  
Oxyfluoride Glass

Low-phonon energy glasses are desirable hosts for rare-earth (RE) ions because they enable emission from RE energy levels that would otherwise be quenched in high-phonon energy glasses. Such emissions are of interest for fiber amplifiers operating at telecommunications wavelength band s of 1.31, 1.46, and 1.55 μm, and for up-conversion lasers and three-dimensional displays.Phonons are optical-frequency molecular vibrations in a material. If the RE energy level of interest lies only a few phonons in energy above the next lower lying level such as the 1G4 level of Pr3+, which is only 3,000 cm −1 above the 3F4, only three Si—O vibrational phonons (1,100 cm−1) are required to bridge the gap as shown in Figure 1. Thus any electrons excited to the 1G4 level via an external pump source will be deexcited to the 3F4 on down to the 3H4 ground state via phonons, and no radiation of usable light will be produced. This is why emission from the 1G4 level of Pr3+ is absent in silicates and why researchers have gone to great lengths to make low-phonon energy glasses.

A Unique Approach to Characterization of Sol-Gel-Derived Rare-Earth-Doped Oxyfluoride Glass-Ceramics

2012 ◽  
Vol 96 (2) ◽  
pp. 476-480 ◽  
Author(s):  
Go Kawamura ◽  
Ryota Yoshimura ◽  
Kazunari Ota ◽  
Song-Yul Oh ◽  
Norio Hakiri ◽  
...  
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Unique Approach ◽  
Rare Earth Doped

Spectroscopic properties of transparent Er-doped oxyfluoride glass–ceramics with GdF3

2015 ◽  
Vol 134 ◽  
pp. 631-637 ◽  
Author(s):  
Marcin Środa ◽  
Krzysztof Szlósarczyk ◽  
Marek Różański ◽  
Maciej Sitarz ◽  
Piotr Jeleń
Keyword(s):  
Glass Ceramics ◽  
Spectroscopic Properties ◽  
Oxyfluoride Glass ◽  
Er Doped

Enhanced green upconversion in Tb3+–Yb3+ co-doped oxyfluoride glass ceramics containing LaF3 nanocrystals

2013 ◽  
Vol 137 ◽  
pp. 70-72 ◽  
Author(s):  
YunLe Wei ◽  
Jingjing Li ◽  
JingWen Yang ◽  
XianNian Chi ◽  
Hai Guo
Keyword(s):  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Co Doped

scholarly journals The Fabrication of Nano-Particles in Aqueous Solution From Oxyfluoride Glass Ceramics by Thermal Induction and Corrosion Treatment

2008 ◽  
Vol 3 (12) ◽  
pp. 516-520 ◽  
Author(s):  
Hua Yu ◽  
Nan Hu ◽  
Ya-Nan Wang ◽  
Zi-Lan Wang ◽  
Zong-Song Gan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Glass Ceramics ◽  
Nano Particles ◽  
Oxyfluoride Glass ◽  
Thermal Induction

Transparent oxyfluoride glass-ceramics with NaGdF4 nanocrystals doped with Pr3+ and Pr3+-Yb3+

2018 ◽  
Vol 193 ◽  
pp. 61-69 ◽  
Author(s):  
J.J. Velázquez ◽  
R. Balda ◽  
J. Fernández ◽  
G. Gorni ◽  
L. Pascual ◽  
...  
Keyword(s):  
Glass Ceramics ◽  
Oxyfluoride Glass

scholarly journals Photoluminescence of Eu and Ce Activated Oxyfluoride Glass And Glass Ceramics/ Eu Un Ce Jonu Luminiscence Oksifluorīdu Stiklos Un Stikla Keramikā

2012 ◽  
Vol 49 (6-I) ◽  
pp. 44-48
Author(s):  
I. Brice ◽  
U. Rogulis ◽  
E. Elsts ◽  
J. Grūbe
Keyword(s):  
Glass Ceramic ◽  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Ceramic Samples ◽  
Activator Ions

Abstract The photoluminescence of SiO2-Al2O3-LiO2-LaF3 oxyfluoride glass and glass ceramic samples doped with Ce3+, Eu2+ and Ce3+/Eu2+ is investigated, and the spectra and fluorescence intensities are compared. The luminescence of samples activated by Eu ions is found to be more intensive than of the samples doped with Ce or Ce/Eu. The luminescence of glass ceramics is higher than that of the corresponding glass, which indicates that a proportion of the activator ions are embedded in the fluoride crystallites.

Structural evolution of luminescence nanoparticles with rare-earth ions in the oxyfluoride glass ceramics

2019 ◽  
Vol 237 ◽  
pp. 121830 ◽  
Author(s):  
S.E. Kichanov ◽  
Yu.E. Gorshkova ◽  
G.E. Rachkovskaya ◽  
D.P. Kozlenko ◽  
G.B. Zakharevich ◽  
...  
Keyword(s):  
Rare Earth ◽  
Glass Ceramics ◽  
Structural Evolution ◽  
Rare Earth Ions ◽  
Oxyfluoride Glass
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