SiO 2 -SnO 2 glass-ceramic planar waveguides activated by rare earth ions

2009 ◽  
Author(s):  
S. N. B. Bhaktha ◽  
C. Armellini ◽  
F. Beclin ◽  
M. Bouazaoui ◽  
B. Capoen ◽  
...  
Keyword(s):  
Rare Earth ◽  
Glass Ceramic ◽  
Rare Earth Ions ◽  
Planar Waveguides

scholarly journals SiO2-SnO2:Er3+ Glass-Ceramic Monoliths

2018 ◽  
Author(s):  
Lam Thi Ngoc Tran ◽  
Damiano Massella ◽  
Lidia Zur ◽  
Alessandro Chiasera ◽  
Stefano Varas ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Sensors ◽  
Tin Dioxide ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Building Blocks ◽  
Spectroscopic Properties ◽  
Silica Matrix ◽  
Rare Earth Ions ◽  
Planar Waveguides

The development of efficient luminescent systems, such as microcavities, solid state lasers, integrated optical amplifiers, optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare earth ions because they exhibit specific morphologic, structural and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in silica matrix, tin dioxide presents some interesting peculiarities, e.g. the presence of tin dioxide nanocrystals allows increase in both solubility and emission of rare earth ions. Here, we focus our attention on Er3+ - doped silica – tin dioxide photonic glass-ceramics fabricated by sol-gel route. Although the SiO2-SnO2:Er3+ could be fabricated in different geometrical systems: thin films, monoliths and planar waveguides we herein limit ourselves to the monoliths. The effective role of tin dioxide as luminescence sensitizer for Er3+ ions is confirmed by spectroscopic measurements and detailed fabrication protocols are discussed.

The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties

2018 ◽  
Vol 6 (12) ◽  
pp. 2944-2950 ◽  
Author(s):  
Zhigang Gao ◽  
Xiaosong Lu ◽  
Yushi Chu ◽  
Shu Guo ◽  
Lu Liu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Silicate Glass ◽  
Glass Ceramic ◽  
Glassy Phase ◽  
Rare Earth Ions ◽  
Photoluminescence Properties ◽  
Glass Composite ◽  
Surface Doping ◽  
Phase Surface

The partitioning of rare earth ions (REs: Yb3+, Er3+, Eu3+ and Nd3+) in γ-Ga2O3 nanocrystals (NCs) precipitated in a nanostructured silicate glass ceramic is revealed, and the enrichment of REs in the NCs (bulk doping) rather than on the interfaces between the NCs and the surrounding glassy phase (surface doping) is differentiated.

Comparison between glass and glass-ceramic silica-hafnia matrices on the down-conversion efficiency of Tb3+/Yb3+ rare earth ions

2019 ◽  
Vol 87 ◽  
pp. 102-106 ◽  
Author(s):  
L. Zur ◽  
C. Armellini ◽  
S. Belmokhtar ◽  
A. Bouajaj ◽  
E. Cattaruzza ◽  
...  
Keyword(s):  
Rare Earth ◽  
Conversion Efficiency ◽  
Glass Ceramic ◽  
Rare Earth Ions ◽  
Down Conversion

Densification and crystallization processes of aluminosilicate planar waveguides doped with rare-earth ions

2001 ◽  
Vol 382 (1-2) ◽  
pp. 81-85 ◽  
Author(s):  
J.M. Nedelec ◽  
B. Capoen ◽  
S. Turrell ◽  
M. Bouazaoui
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Planar Waveguides

Rare – Earth – Doped Silicate Glass – Ceramic Thin Films for Integrated Optical Devices

2010 ◽  
Vol 71 ◽  
pp. 6-15 ◽  
Author(s):  
Simone Berneschi ◽  
Guillaume Alombert-Goget ◽  
Cristina Armellini ◽  
B.N.S. Bhaktha ◽  
Massimo Brenci ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Silicate Glass ◽  
Glass Ceramic ◽  
High Performance ◽  
Optical Devices ◽  
Planar Waveguides ◽  
Ceramic Thin Films ◽  
Integrated Optical ◽  
Integrated Optical Devices

The possibility to confine the light in optical planar structures represented the milestone for the development of integrated optical devices in different application areas, such as communications and sensing. In particular, rare-earth (RE) doped planar waveguides demonstrated to be an interesting solution in the realization of integrated optical lasers and amplifiers suitable for the generation/regeneration of the signal in metropolitan and local area networks. Nowadays, although these devices are commercially available, the major contribution of the research consists in discovering and developing better combinations of materials and fabrication processes, in order to reduce the costs and increase the performance of the aforesaid devices. In this context glass-ceramic waveguides, activated by RE ions, seem to fully respond to these requests. The aim of this paper is to offer a comprehensive review on the main results obtained in our Labs in the field of glassceramics. Fabrication and characterization of different silicate glass-ceramic thin films, doped with different percentages of RE ions, will be presented and discussed. The interesting results obtained make these systems quite promising for development of high performance integrated optical amplifiers and lasers.

Fabrication and characterization of sol‐gel planar waveguides doped with rare‐earth ions

1996 ◽  
Vol 69 (7) ◽  
pp. 895-897 ◽  
Author(s):  
X. Orignac ◽  
D. Barbier ◽  
X. M. Du ◽  
R. M. Almeida
Keyword(s):  
Rare Earth ◽  
Sol Gel ◽  
Rare Earth Ions ◽  
Planar Waveguides ◽  
Fabrication And Characterization

scholarly journals SiO2-SnO2:Er3+ Glass-Ceramic Monoliths

2018 ◽  
Vol 8 (8) ◽  
pp. 1335 ◽  
Author(s):  
Lam Tran ◽  
Damiano Massella ◽  
Lidia Zur ◽  
Alessandro Chiasera ◽  
Stefano Varas ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optical Sensors ◽  
Tin Dioxide ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Building Blocks ◽  
Spectroscopic Properties ◽  
Silica Matrix ◽  
Rare Earth Ions ◽  
Planar Waveguides

The development of efficient luminescent systems, such as microcavities, solid-state lasers, integrated optical amplifiers, and optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare-earth ions because they exhibit specific morphologic, structural, and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in a silica matrix, tin dioxide presents some interesting peculiarities, e.g., the presence of tin dioxide nanocrystals allows an increase in both solubility and emission of rare-earth ions. Here, we focus our attention on Er3+—doped silica—tin dioxide photonic glass-ceramics fabricated by a sol-gel route. Although the SiO2-SnO2:Er3+ could be fabricated in different forms, such as thin films, monoliths, and planar waveguides, we herein limit ourselves to the monoliths. The effective role of tin dioxide as a luminescence sensitizer for Er3+ ions is confirmed by spectroscopic measurements and detailed fabrication protocols are discussed.

Photosensitivity of fluoride glass planar waveguides doped with rare earth ions (Ce3+, Eu2+, Er3+)

1997 ◽  
Author(s):  
Marc Douay ◽  
Wenxiang Xie ◽  
Pascal Bernage ◽  
Pierre Niay ◽  
Brigitte Boulard ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Planar Waveguides ◽  
Fluoride Glass

Sol–gel-derived transparent silica–(Gd,Pr)PO4 glass-ceramic narrow-band UVB phosphors

2018 ◽  
Vol 47 (35) ◽  
pp. 12085-12091
Author(s):  
Mayu Suda ◽  
Ryosui Nakagawa ◽  
Kiyoshi Kanamura ◽  
Koichi Kajihara
Keyword(s):  
Rare Earth ◽  
Quantum Efficiency ◽  
Glass Ceramic ◽  
External Quantum Efficiency ◽  
Narrow Band ◽  
Internal Quantum Efficiency ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Rare Earth Ions

Transparent sol–gel-derived silica–(Gd,Pr)PO4 glass-ceramics free from inert rare-earth ions exhibit narrow-band UVB photoluminescence from Gd3+ ions at ∼313 nm with internal quantum efficiency close to unity and external quantum efficiency higher than 0.9 under excitation into the 5d state of Pr3+ ions.

scholarly journals Rare Earth-Activated Silica-Based Nanocomposites

2007 ◽  
Vol 2007 ◽  
pp. 1-6 ◽  
Author(s):  
C. Armellini ◽  
A. Chiappini ◽  
A. Chiasera ◽  
M. Ferrari ◽  
Y. Jestin ◽  
...  
Keyword(s):  
Rare Earth ◽  
Glass Ceramic ◽  
Spectroscopic Properties ◽  
Rare Earth Ions ◽  
Core Shell ◽  
Silica Spheres ◽  
Photonic Materials ◽  
Seed Growth ◽  
Growth Method

Two different kinds of rare earth-activated glass-based nanocomposite photonic materials, which allow to tailor the spectroscopic properties of rare-earth ions: (i) Er3+-activated SiO2-HfO2waveguide glass ceramic, and (ii) core-shell-like structures of Er3+-activated silica spheres obtained by a seed growth method, are presented.

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