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Spontaneous emission rate enhancement of nano-structured silicon by surface plasmon polariton
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  • 分类:TP333[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术] O484.41[理学—固体物理;理学—物理]
  • 作者机构:[1]State Key Laboratory of Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • 相关基金:Acknowledgements This work was supported by the National Basic Research Program of China (No. 2011CBA00600 and 2007CB307004) and the National Natural Science Foundation of China (Grant Nos. 60877023, 61036010, 61036011, and 61107050). The authors would like to thank Xuan Tang, Weiwei Ke, Wei Zhang and Jiangde Peng for their valuable discussions and helpful comments.
中文摘要:

表面电浆子电磁声子(SPP ) 是一个吸引人的候选人包括 nano 多孔的硅(NP-Si ) 和硅 nanocrystal (Si-NC ) 从组织 nano 的硅(Si ) 改进自发的排放(SE ) 的内部量效率(QE ) 。自从普通金属的 SPP 反响的频率,例如,黄金(Au ) ,银(Ag ) ,铜(Cu ) ,和铝(艾尔) ,太高, SPP 回声不得不被设计从 nanostructured Si 匹配光。为这个目的,我们包括充满金属的 Au (1 )-SiO2() 金属陶瓷 SPP 波导(WG ) 建议了并且示威三条途径,复合的层结构 WG 和金属性的栅栏。在这份报纸,那些途径被考察并且讨论。根据计算结果,如此的三个方法能有效地在开发基于的光与电的泵采购的高效率 Si 从 NP-Si 或 Si-NCs 和表演潜力提高 SE 率。

英文摘要:

Surface plasmon polariton (SPP) is an attractive candidate to improve internal quantum efficiency (QE) of spontaneous emission (SE) from nano-structured silicon (Si) including nano-porous silicon (NP-Si) and silicon nanocrystal (Si-NC). Since the SPP resonant frequency of common metals, e.g., gold (Au), silver (Ag), copper (Cu), and aluminum (A1), is too high, the SPP resonance has to be engineered to match the luminescence from nano- structured Si. For this purpose, we have proposed and demonstrated three approaches including metal-rich Au(1-a)-SiO2(a) cermet SPP waveguide (WG), com- pound layer structure WG and metallic grating. In this paper, those approaches are reviewed and discussed. According to the calculated results, such three methods could effectively enhance SE rate from NP-Si or Si-NCs and show potential in developing high efficiency Si based light sources with electric pump.

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