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Sm3+ luminescence in alkali lead tellurofluoroborate glasses
被引:4
|作者:
Salem, S. A.
[1
]
Jamalaiah, B. C.
[1
]
Jang, Kiwan
[2
]
Jayasimhadri, M.
Babu, A. Mohan
[1
]
Kumar, J. Suresh
[1
]
Moorthy, L. Rama
[1
]
机构:
[1] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
[2] Changwon Natl Univ, Dept Phys, Chang Won, South Korea
来源:
INTERNATIONAL SEMINAR ON SCIENCE AND TECHNOLOGY OF GLASS MATERIALS (ISSTGM 2009)
|
2009年
/
2卷
关键词:
OPTICAL-PROPERTIES;
SPECTROSCOPIC PROPERTIES;
IONS;
D O I:
10.1088/1757-899X/2/1/012049
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Sm3+- doped alkali lead tellurofluorborate (RLTB) glasses with chemical composition of H3BO3 - RF - PbO -TeO2 - Sm2O3 (R = Li, Na and K) were prepared by conventional melt quenching technique. From the measured absorption spectra, the Judd-Ofelt intensity parameters (Omega(lambda)) have been evaluated. Decay measurements of (4)G(5/2) metastable state in all the three glass systems were found to be non-exponential. The reasons for non-exponential behaviour of the decay profiles were also discussed based on the Inokuti-Hirayama (I-H) model, confirming the dipole-dipole interaction between the Sm3+ ions.
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页数:5
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