| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Guyot, Yannick
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Energy exchange between Nd 3+ and Er 3+ centers within molecular complexescitations
- 2023Cr-doped Al 2 O 3 –YAG binary and Al 2 O 3 –YAG–ZrO 2 ternary eutectic materials crystallized by the micro pulling down technique and their characterization
- 2022Spectroscopic properties and crystal-field effects in Er3+-doped tellurite and phosphate glass-ceramicscitations
- 2020Quest to enhance up-conversion efficiency: a comparison of anhydrous vs. hydrous synthesis of NaGdF4: Yb3+ and Tm3+ nanoparticlescitations
- 2019Precursor-directed synthesis of upconverting LiYF4:Yb3+, Tm3+ nanoparticles and their composites designed for near infra-red driven photocatalysis
- 2015Emission tunability and local environment in europium-doped OH--free calcium aluminosilicate glasses for artificial lighting applicationscitations
- 2014Investigation of local environment around rare earths (La and Eu) by fluorescence line narrowing during borosilicate glass alterationcitations
- 2014Thermal and Optical Characterization of Undoped and Neodymium-Doped Y3ScAl4O12 Ceramicscitations
- 2014Thermal and Optical Characterization of Undoped and Neodymium-Doped Y3ScAl4O12 Ceramicscitations
- 2014Polycrystalline Yb3+-Er3+-co-doped YAG: Fabrication, TEM-EDX characterization, spectroscopic properties, and comparison with the single crystalcitations
- 2002Effect of the introduction of Na2B4O7 on erbium luminescence in tellurite glassescitations
Places of action
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article
Polycrystalline Yb3+-Er3+-co-doped YAG: Fabrication, TEM-EDX characterization, spectroscopic properties, and comparison with the single crystal
Abstract
cited By 1 ; International audience ; Yttrium aluminum garnet (YAG)-based ceramics represent a valuable alternative to single crystals as active media in laser devices for specific applications. In this connection, the 1.5-1.65 μm emission channel of Er3+-doped YAG is of particular importance for the realization of diode pumped solid state lasers operating in the so-called 'eye-safe' region. A well-known drawback of this material is related to its small absorption cross section in correspondence to the diode pumping radiation at 940-980 nm. However, its emission performance can be significantly improved through sensitization with Yb3+ ions that can efficiently absorb the excitation radiation and transfer it to the Er3+ ions. This work deals with the fabrication of polycrystalline YAG co-doped with Er3+ and Yb3+ ions from oxide powders via solid state sintering in high vacuum conditions and its microstructural analysis by transmission electron microscopy-energy-dispersive x-ray spectroscopy to determine the dopants distribution and to assess their influence on the sintering process and on the spectroscopic properties. For this purpose, the absorption and emission spectra of the prepared material have been measured and compared with those of a single crystal having the same composition, appositely prepared by the micro-pulling down method. Suitable calculations have been finally carried out to verify the effective perspectives of application of the investigated ceramics as active lasing medium. © Materials Research Society 2014.