scholarly journals Mn4+ concentration effect on spectral properties of lithium-germanate glass-ceramics

2021 ◽  
Vol 2086 (1) ◽  
pp. 012129
Author(s):  
A N Babkina ◽  
M S Kovova ◽  
E V Kulpina ◽  
A S Pavliuk ◽  
K S Zyryanova ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Glass Matrix ◽  
Glass Ceramics ◽  
Luminescence Lifetime ◽  
Manganese Concentration ◽  
Germanate Glass ◽  
Intense Emission ◽  
Doped Glass ◽  
Red Radiation ◽  
Germanate Glasses

Abstract A series of lithium-germanate glasses with different manganese concentration is synthesized. Li2Ge7O15 nanocrystals nucleate in the glass matrix via standard volume crystallization technique thus obtaining lithium-germanate glass-ceramics. The glass-ceramics possess intense emission near 660-670 nm under two-band excitation at 330 and 450 nm. The luminescence lifetime is 550 μs for 0.05 mol.% MnO2-doped glass-ceramics. The glass-ceramics obtained can be used as a source of deep-red radiation.

Mixed-Phase Crystallization and Visible Fluorescence in Rare-Earth Ions Doped Germanate Glass-Ceramics

2011 ◽  
Vol 399-401 ◽  
pp. 904-907 ◽  
Author(s):  
Yu Hua Li ◽  
Xiang Ling Zhang ◽  
Cun Xi Fan ◽  
Ming Liu ◽  
Bin Zhai ◽  
...  
Keyword(s):  
Rare Earth ◽  
Glass Ceramics ◽  
Heat Treating ◽  
Rare Earth Ions ◽  
Blue Laser ◽  
Excitation Spectra ◽  
Germanate Glass ◽  
Bluish Green ◽  
Doped Glass ◽  
Rare Earth Doped Glass

Rare-earth doped glass-ceramics were prepared by heat-treating the precursor germanate glasses. The crystalline phases of the glass-ceramics were assigned to be NaAlGeO4 (NAG) and Mg2GeO4 (MG), and the primary particle sizes were derived to be ~31 and ~32nm, respectively. The secondary particle size of crystal grains was estimated to be ~30µm, and the large grain size is owing to the particles aggregation. Under 254 and 365nm radiation, Sm3+-doped glass-ceramics exhibit orange and reddish-orange fluorescences, and Eu-doped glass-ceramics present red and purplish-red lights, respectively. The investigation results of excitation spectra indicate that the Sm3+- and Eu-doped NAG-MG glass-ceramics can be excited efficiently by commercial UV and blue laser diodes, as well as blue and bluish-green LEDs.

Preparation and Luminescence Properties of Eu3+ Doped Germanate Glass Ceramics Containing CaF2 Nanocrystals

2020 ◽  
Vol 41 (10) ◽  
pp. 1234-1240
Author(s):  
Li-hui HUANG ◽  
◽  
Jing-tao ZHAO ◽  
Shi-long ZHAO ◽  
Shi-qing XU
Keyword(s):  
Glass Ceramics ◽  
Luminescence Properties ◽  
Germanate Glass

scholarly journals Spectral properties of novel transparent glass-ceramics based on Fe2+:ZnAl2O4 nanocrystals

2020 ◽  
Vol 1697 ◽  
pp. 012125
Author(s):  
K Eremeev ◽  
O Dymshits ◽  
I Alekseeva ◽  
A Khubetsov ◽  
S Zapalova ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Glass Ceramics ◽  
Transparent Glass

Stimulated emission of Co2+-doped glass–ceramics

2007 ◽  
Vol 353 (24-25) ◽  
pp. 2408-2414 ◽  
Author(s):  
Yu.V. Volk ◽  
A.M. Malyarevich ◽  
K.V. Yumashev ◽  
Irina P. Alekseeva ◽  
Olga S. Dymshits ◽  
...  
Keyword(s):  
Glass Ceramics ◽  
Stimulated Emission ◽  
Doped Glass

Tb3+ Doped Transparent Germanate Glass Ceramics: Preparation and Enhanced Luminescence for X-ray Detection

2021 ◽  
Vol 42 (06) ◽  
pp. 804-809
Author(s):  
Yu-xuan CHEN ◽  
◽  
Li-hui HUANG ◽  
Jing-tao ZHAO ◽  
Shi-long ZHAO ◽  
...  
Keyword(s):  
Glass Ceramics ◽  
Germanate Glass ◽  
X Ray ◽  
Enhanced Luminescence

Rare-earth ion doped niobium germanate glasses and glass-ceramics for optical device applications

2019 ◽  
Vol 213 ◽  
pp. 224-234 ◽  
Author(s):  
Lia Mara Marcondes ◽  
Lais Rodrigues ◽  
Cristiano Ramos da Cunha ◽  
Rogéria Rocha Gonçalves ◽  
Andrea S.S. de Camargo ◽  
...  
Keyword(s):  
Rare Earth ◽  
Glass Ceramics ◽  
Rare Earth Ion ◽  
Optical Device ◽  
Device Applications ◽  
Germanate Glasses

scholarly journals Excimer Laser Induced Spatially Resolved Formation and Implantation of Plasmonic Particles in Glass

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1035
Author(s):  
Maximilian Heinz ◽  
Jörg Meinertz ◽  
Manfred Dubiel ◽  
Jürgen Ihlemann
Keyword(s):  
Excimer Laser ◽  
Metallic Nanoparticles ◽  
Glass Matrix ◽  
Laser Pulses ◽  
Building Blocks ◽  
Phase Mask ◽  
Spatially Resolved ◽  
Stable Glass ◽  
193 Nm ◽  
Doped Glass

Metallic nanoparticles are important building blocks for plasmonic applications. The spatially defined arrangement of these nanoparticles in a stable glass matrix is obtained here by nanosecond excimer laser irradiation at 193 nm. Two approaches are addressed: (1) Laser induced formation of particles from a dopant material pre-incorporated in the glass, (2) Particle formation and implantation by irradiation of material pre-coated on top of the glass. Silver nanoparticles are formed inside Ag+ doped glass (method 1). Gold nanoparticles are implanted by irradiation of gold coated glass (method 2). In the latter case, with a few laser pulses the original gold film disintegrates into particles which are then embedded in the softened glass matrix. A micron sized spatial resolution (periodic arrangements with 2 µm period) is obtained in both cases by irradiating the samples with an interference beam pattern generated by a phase mask. The plasmonic absorption of the nanoparticles leads to a contrast of the optical density between irradiated and non-irradiated lines of up to 0.6.

scholarly journals Ytterbium-doped glass-ceramics for optical refrigeration

2015 ◽  
Vol 23 (4) ◽  
pp. 4630 ◽  
Author(s):  
Elton Soares de Lima Filho ◽  
Kummara Venkata Krishnaiah ◽  
Yannick Ledemi ◽  
Ye-Jin Yu ◽  
Younes Messaddeq ◽  
...  
Keyword(s):  
Glass Ceramics ◽  
Optical Refrigeration ◽  
Doped Glass

Raman scattering from CdSe microcrystals embedded in a germanate glass matrix

1992 ◽  
Vol 45 (12) ◽  
pp. 6587-6592 ◽  
Author(s):  
Akinori Tanaka ◽  
Seinosuke Onari ◽  
Toshihiro Arai
Keyword(s):  
Raman Scattering ◽  
Glass Matrix ◽  
Germanate Glass
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