| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Luminescence and Thermal Properties of Er:GSGG and Yb,Er:GSGG Laser Crystals |
| SUN Dun-Lu1**,LUO Jian-Qiao1,XIAO Jing-Zhong2, 3,ZHANG Qing-Li1,CHEN Jia-Kang1,LIU Wen-Peng1,KANG Hong-Xiang4,YIN Shao-Tang1 |
1Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031
2Department of Physics, Universidade de Coimbra, Rua Larga, P-3004-516 Coimbra, Portugal
3International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016
4Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850 |
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| Cite this article: |
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SUN Dun-Lu**, LUO Jian-Qiao, XIAO Jing-Zhong et al 2012 Chin. Phys. Lett. 29 054209 |
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Abstract Er3+−doped and Yb3+/Er3+ co−doped Gd3Sc2Ga3O12 (abbreviated as Er:GSGG and Yb,Er:GSGG, respectively) laser crystals are investigated by using a combination of spectroscopic measurements and thermal characterizations. An absorption peak of Yb,Er:GSGG crystal shifts to 970 nm and its absorption band broadens obviously, which makes the crystal suitable for pumping by a 970 nm laser diode (LD). This crystal also exhibits a shorter lifetime of a lower laser level, a larger emission cross section and higher thermal conductivity than those of Er:GSGG. All these factors suggest that Yb3+/Er3+ co−doping has a positive effect on improving the spectroscopic and thermal performances in GSGG based laser crystals, and imply that double-doped Yb,Er:GSGG crystal is a potential candidate as an excellent LD pumped 2.79 µm laser material.
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| Keywords:
42.70.Hj
78.55.-m
65.40.-b
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Received: 15 January 2012
Published: 30 April 2012
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| PACS: |
42.70.Hj
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(Laser materials)
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78.55.-m
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(Photoluminescence, properties and materials)
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65.40.-b
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(Thermal properties of crystalline solids)
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