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首页> 外文期刊>Journal of Materials Research >Synthesis and greatly enhanced fluorescence emission of transparent Nd-doped Y3ScxAl5-xO12 ceramics
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Synthesis and greatly enhanced fluorescence emission of transparent Nd-doped Y3ScxAl5-xO12 ceramics

机译：透明掺钕Y3ScxAl5-xO12陶瓷的合成及荧光增强

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摘要

Nd-doped Y3ScxAl5-xO12(Nd:YSAG) powder were prepared with a chemical combustion method. The powders were nano-sized and had a pure cubic phase when calcined at 900 degrees C. Transparent Nd:YSAG ceramics with up to 40% scandium substitution for aluminum were successfully fabricated by sintering the powder compact at 1800 degrees C under H-2 atmosphere. The synthesis process and optical properties were investigated in detail. It was found that the light emission intensity at 1064 nm of the Nd:YSAG with 40% scandium substitution for aluminum can be enhanced by 2-3 times over that of Nd:YAG single crystal when pumped with the same 808-nm diode laser. In addition, the material was found to have prolonged fluorescence lifetime. This highly enhanced light emission intensity is fundamentally important for obtaining higher light output together with suppressed self-heating than Nd:YAG ceramic and single crystals.
机译：采用化学燃烧法制备了掺钕Y3ScxAl5-xO12（Nd：YSAG）粉末。粉末为纳米级，在900摄氏度下煅烧时具有纯立方相。通过在H-2气氛下在1800摄氏度下烧结粉末压块成功地制造了具有高达40％substitution替代铝的透明Nd：YSAG陶瓷。详细研究了合成工艺和光学性能。发现用相同的808 nm二极管激光器泵浦时，具有40％substitution取代铝的Nd：YSAG在1064 nm处的发光强度比Nd：YAG单晶可以提高2-3倍。另外，发现该材料具有延长的荧光寿命。与Nd：YAG陶瓷和单晶相比，这种高度增强的发光强度对于获得更高的光输出以及抑制自热至关重要，这一点至关重要。

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