Tailored spectroscopic and optical properties in rare earth-activated glass-ceramics planar waveguides

2013 ◽  
Author(s):  
Davor Ristic ◽  
Thi Thanh Van Tran ◽  
Belto Dieudonné ◽  
Armellini Cristina ◽  
Simone Berneschi ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Glass Ceramics ◽  
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.

scholarly journals Red photonic glasses and confined structures

2014 ◽  
Vol 62 (4) ◽  
pp. 647-653
Author(s):  
R.R. Gonçalves ◽  
A. Lukowiak ◽  
D. Ristic ◽  
B. Boulard ◽  
A. Chiappini ◽  
...  
Keyword(s):  
Rare Earth ◽  
Structural Properties ◽  
Glass Ceramics ◽  
Short Review ◽  
Planar Waveguides ◽  
Transparent Glass ◽  
Interesting Class ◽  
Confined Structures ◽  
Rare Earth Doped ◽  
State Of Art

Abstract We present some recent results obtained by our team in rare earth doped photonic glasses and confined structures, in order to give some highlights regarding the state of art in glass photonics. To evidence the unique properties of transparent glass ceramics we compare spectroscopic and structural properties between the parent glass and the glass ceramics. Starting from planar waveguides we move to spherical microresonators, a very interesting class of photonic confined structures. We also conclude the short review with some remarks about the perspective for glass photonics.

Optical Properties of Rare Earth Doped Transparent Oxyfluoride Glass Ceramics

2003 ◽  
Vol 158 (1-6) ◽  
pp. 457-462 ◽  
Author(s):  
J. Méndez-Ramos ◽  
V. Lavín ◽  
I. R. Martín ◽  
U. R. Rodríguez-Mendoza ◽  
V. D. Rodríguez ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Rare Earth Doped

Rare-earth doped oxyfluoride glass-ceramics and fluoride ceramics: Synthesis and optical properties

2007 ◽  
Vol 29 (10) ◽  
pp. 1263-1270 ◽  
Author(s):  
M. Mortier ◽  
A. Bensalah ◽  
G. Dantelle ◽  
G. Patriarche ◽  
D. Vivien
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Glass Ceramics ◽  
Oxyfluoride Glass ◽  
Rare Earth Doped

Rare-earth Activated Glass and Glass-Ceramic for Neutron Detection

2012 ◽  
Vol 1471 ◽  
Author(s):  
Wei Dai ◽  
Henry Marcacci ◽  
Brendan Lynch ◽  
Hisham Menkara ◽  
Brent Wagner ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Glass Ceramic ◽  
Glass Ceramics ◽  
Neutron Detection ◽  
Aluminosilicate Glass ◽  
Transparent Glass ◽  
Glass Matrices ◽  
Quench Method

ABSTRACTNeutron detection scintillators based on rare-earth activated transparent glass and glass-ceramics are reported. Ce3+ doped gadolinium halides in 6LiF modified aluminosilicate glass matrices were synthesized by a melt-quench method followed by annealing. Their optical properties and alpha, neutron scintillation performance were investigated and compared to conventional 6Li-based scintillating glass.

scholarly journals Optical Properties of Transparent Rare-Earth Doped Sol-Gel Derived Nano-Glass Ceramics

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6871
Author(s):  
Mihail Secu ◽  
Corina Secu ◽  
Cristina Bartha
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Optical Waveguides ◽  
Sol Gel ◽  
Glass Ceramics ◽  
Processing Temperature ◽  
Oxide Glasses ◽  
White Leds ◽  
New Generation ◽  
Rare Earth Doped

Rare-earth doped oxyfluoride glass ceramics represent a new generation of tailorable optical materials with high potential for optical-related applications such as optical amplifiers, optical waveguides, and white LEDs. Their key features are related to the high transparency and remarkable luminescence properties, while keeping the thermal and chemical advantages of oxide glasses. Sol-gel chemistry offers a flexible synthesis approach with several advantages, such as lower processing temperature, the ability to control the purity and homogeneity of the final materials on a molecular level, and the large compositional flexibility. The review will be focused on optical properties of sol-gel derived nano-glass ceramics related to the RE-doped luminescent nanocrystals (fluorides, chlorides, oxychlorides, etc.) such as photoluminescence, up-conversion luminescence, thermoluminescence and how these properties are influenced by their specific processing, mostly focusing on the findings from our group and similar ones in the literature, along with a discussion of perspectives, potential challenges, and future development directions.

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.

scholarly journals Devitrification Behavior of Sol-Gel Derived ZrO2-SiO2 Rare-Earth Doped Glasses: Correlation between Structural and Optical Properties

Ceramics ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 274-286 ◽  
Author(s):  
Masato Isogai ◽  
Alexander Veber ◽  
Maria Cicconi ◽  
Tomokatsu Hayakawa ◽  
Dominique de Ligny
Keyword(s):  
Heat Treatment ◽  
Optical Properties ◽  
Energy Transfer ◽  
Rare Earth ◽  
Sol Gel ◽  
Glass Ceramics ◽  
High Concentration ◽  
Energy Applications ◽  
Doped Glasses ◽  
The Media

Optical and structural properties of glasses and glass-ceramics (GC) obtained by different heat-treatment of Tb and Tb-Yb doped sol-gel derived 30ZrO2-70SiO2 materials were investigated. A glass was formed after treatment at 700 °C whereas devitrification of the media after the treatment at 1000 and 1100 °C, led to the formation of GC containing up to three different crystalline phases, namely, tetragonal ZrO2, Yb-disilicate and cristobalite. The modification of the optical properties through the heat treatment was caused by redistribution of the rare earth elements (REE) among the different phases: both Tb and Yb entered the t-ZrO2 lattice, Yb can also be present in the form of a Yb2Si2O7 crystal. Devitrification led to an increase in Tb→Yb energy transfer efficiency as compared to the glass, though it was higher in the samples heat-treated at 1000 °C than in those treated at 1100 °C. The most intensive Yb3+ luminescence, induced by the energy transfer from the Tb3+ ion, was observed at the interface between t-ZrO2 and the glassy phases, due to the high concentration of REE in this area caused by the inability of ZrO2 to accept larger amounts of the REE. The mechanisms of the Tb→Yb energy transfer vary between different phases of the GC. The results obtained in this study are important for the development of spectral down-converters for potential solar energy applications based on Tb-Yb co-doped glass-ceramics.

Sign in / Sign up

Export Citation Format

Share Document