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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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Suzuki, Takenobu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (3/3 displayed)
- 2013On the analogy between photoluminescence and carrier-type reversal in Bi- and Pb-doped glasses ; Analogie mezi fotoluminescencí a změnou typu vodivosti v Bi- a Pb-dotovaných sklechcitations
- 2013On the analogy between photoluminescence and carrier-type reversal in Bi-and Pb-doped glassescitations
- 2010Transparent silicate glass-ceramics embedding Ni-doped nanocrystals
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booksection
Transparent silicate glass-ceramics embedding Ni-doped nanocrystals
Abstract
Recent progress in the development of transparent silicate glass-ceramics embedding Ni-doped nanocrystals as broadband gain media is reviewed. At first, optical properties such as the peak positions, wavelengths lifetimes and quantum efficiencies of the near-infrared emission of nickel-doped oxide crystals are overviewed. The quantum efficiencies of the near-infrared emission of nickel-doped LiGa<sub>5</sub>O<sub>8</sub> and MgGa<sub>2</sub>O<sub>4</sub> were as high as ~1 even at room temperature. Thus these materials are promising candidate crystals to be precipitated in glass-ceramics. Crystallization process of Li<sub>2</sub>O-Ga<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-NiO (LGSN) glass was investigated in detail. Transparent glass-ceramics in which only Ni<sup>2+</sup>:LiGa<sub>5</sub>O<sub>8</sub> was contained as crystalline phases have been successfully prepared from the glass by heat-treatment. The glass-ceramics exhibited broad near-infrared emission around 1300 nm and the quantum efficiency was about 10 %. The figure of merit as laser transition of the emission was comparable to that of rare-earth doped glasses used in optical fiber amplifiers. LGSN transparent glass-ceramics is a promising candidate material for broadband optical fiber amplifiers and tunable lasers.<br/>