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Spectroscopic characterization of Yb:Sc2O3 transparent ceramics |
| Lu Shen-Zhou(陆神洲) and Yang Qiu-Hong(杨秋红)† |
| School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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Abstract Yb:Sc2O3 transparent ceramics are fabricated by a conventional ceramic process and sintering in H2 atmosphere. The room-temperature spectroscopic properties are investigated, and the Raman spectrum shows an obvious vibration characteristic band centred at 415 cm-1. There are three broad absorption bands around 891, 937, and 971 nm, respectively. The strongest emission peak is centred at 1.04 μm with a broad bandwidth (11 nm) and an emission cross-section of 1.8×10-20 cm2. The gain coefficient implies a possible laser ability in a range from 990 nm to 1425 nm. The energy-level structure shows that Yb:Sc2O3 ceramics have large Stark splitting at the ground state level due to their strong crystal field. All the results show that Yb:Sc2O3 transparent ceramics are a promising material for short pulse lasers.
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Received: 30 June 2011
Revised: 10 October 2011
Accepted manuscript online:
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PACS:
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78.30.-j
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(Infrared and Raman spectra)
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42.70.Hj
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(Laser materials)
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81.05.Je
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(Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))
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| Fund: Project supported by the Key Basic Research Project of Science and Technology Commission of Shanghai, China (Grant No. 09JC1406500). |
Corresponding Authors:
Yang Qiu-Hong,yangqiuhongcn@yahoo.com.cn
E-mail: yangqiuhongcn@yahoo.com.cn
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Cite this article:
Lu Shen-Zhou(陆神洲) and Yang Qiu-Hong(杨秋红) Spectroscopic characterization of Yb:Sc2O3 transparent ceramics 2012 Chin. Phys. B 21 047801
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