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Transparent silicate glass-ceramics embedding Ni-doped nanocrystals

Transparent silicate glass-ceramics embedding Ni-doped nanocrystals
Transparent silicate glass-ceramics embedding Ni-doped nanocrystals
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 LiGa5O8 and MgGa2O4 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 Li2O-Ga2O3-SiO2-NiO (LGSN) glass was investigated in detail. Transparent glass-ceramics in which only Ni2+:LiGa5O8 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.
195-222
Research Signpost
Suzuki, T.
ce397400-05fe-441e-a39e-c3dafaec3ce0
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Ohishi, Y.
581e6a89-1e2d-4bb7-9996-8f609e27e195
Murugan, G.S.
Suzuki, T.
ce397400-05fe-441e-a39e-c3dafaec3ce0
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Ohishi, Y.
581e6a89-1e2d-4bb7-9996-8f609e27e195
Murugan, G.S.

Suzuki, T., Murugan, Ganapathy Senthil and Ohishi, Y. (2010) Transparent silicate glass-ceramics embedding Ni-doped nanocrystals. Murugan, G.S. (ed.) In Photonic Glasses and Glass-Ceramics. Research Signpost. pp. 195-222 .

Record type: Conference or Workshop Item (Paper)

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 LiGa5O8 and MgGa2O4 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 Li2O-Ga2O3-SiO2-NiO (LGSN) glass was investigated in detail. Transparent glass-ceramics in which only Ni2+:LiGa5O8 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.

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Published date: 2010

Identifiers

Local EPrints ID: 438071
URI: http://eprints.soton.ac.uk/id/eprint/438071
PURE UUID: 627cd173-1022-402e-81fa-f6de2aae073d
ORCID for Ganapathy Senthil Murugan: ORCID iD orcid.org/0000-0002-2733-3273

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Date deposited: 27 Feb 2020 17:31
Last modified: 18 Feb 2021 17:05

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