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Greatly enhanced broadband near-infrared emission due to energy transfer from Cr3+ to Ni2+ in transparent magnesium aluminosilicate glass ceramics
被引:11
作者:
Luo, Jin
[1
]
Zholi, Shifeng
[1
]
Wu, Botao
[2
]
Yang, Hucheng
[1
]
Ye, Song
[1
]
Zhu, Bin
[1
]
Qiu, Jianrong
[1
,2
]
机构:
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
基金:
中国国家自然科学基金;
关键词:
OPTICAL-PROPERTIES;
CORDIERITE GLASS;
IONS;
SPINEL;
LASER;
LUMINESCENCE;
CR(III);
ND3+;
D O I:
10.1557/JMR.2009.0068
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Cr3+/Ni2+ co-doped optically transparent magnesium aluminosilicate glass-ceramics containing MgAl2O4 nanocrystals have been prepared by heat-treatment. Greatly enhanced broadband near-infrared emission centered at 1216 nm in Cr3+/Ni2+ co-doped glass ceramics is observed when compared with the Ni2+ single-doped glass ceramics under 532 nm excitation. The observed enhancement of infrared emission is attributed to the energy transfer from Cr3+ to Ni2+ ions in the nanocrystalline phase, which leads to the emission due to T-3(2)(F-3) -> (3)A(2)(F-3) transition of octahedral Ni2+ ions.
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页码:310 / 315
页数:6
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