Terahertz plasmon and surface-plasmon modes in hollow nanospheres
文献类型：期刊论文
| 作者 | Xiao, Yiming1; Xu, Wen1; Zhang, Yaya1; Hu, Jiaguang1 |
| 刊名 | NANOSCALE RESEARCH LETTERS
 |
| 出版日期 | 2012 |
| 卷号 | 7 |
| ISSN号 | 1556-276X |
| 其他题名 | Terahertz plasmon and surface-plasmon modes in hollow nanospheres |
| 英文摘要 | We present a theoretical study of the electronic subband structure and collective electronic excitation associated with plasmon and surface plasmon modes in metal-based hollow nanosphere. The dependence of the electronic subband energy on the sample parameters of the hollow nanosphere is examined. We find that the subband states with different quantum numbers / degenerate roughly when the outer radius of the sphere is r(2) >= 100 nm. In this case, the energy spectrum of a sphere is mainly determined by quantum number n. Moreover, the plasmon and surface plasmon excitations can be achieved mainly via inter-subband transitions from occupied subbands to unoccupied subbands. We examine the dependence of the plasmon and surface-plasmon frequencies on the shell thickness d and the outer radius r(2) of the sphere using the standard random-phase approximation. We find that when a four-state model is employed for calculations, four branches of the plasmon and surface plasmon oscillations with terahertz frequencies can be observed, respectively. |
| 资助项目 | [National Natural Science Foundation of China] ; [Ministry of Science and Technology of China] ; [Department of Science and Technology of Yunnan Province] ; [Chinese Academy of Sciences] |
| 语种 | 英语 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/124159]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.Yunnan University 2.Hefei Institutes of Physical Science, Chinese Academy of Sciences 3.Wenshan Univ |
| 推荐引用方式 GB/T 7714 | Xiao, Yiming,Xu, Wen,Zhang, Yaya,et al. Terahertz plasmon and surface-plasmon modes in hollow nanospheres[J]. NANOSCALE RESEARCH LETTERS,2012,7. |
| APA | Xiao, Yiming,Xu, Wen,Zhang, Yaya,&Hu, Jiaguang.(2012).Terahertz plasmon and surface-plasmon modes in hollow nanospheres.NANOSCALE RESEARCH LETTERS,7. |
| MLA | Xiao, Yiming,et al."Terahertz plasmon and surface-plasmon modes in hollow nanospheres".NANOSCALE RESEARCH LETTERS 7(2012). |
入库方式： OAI收割
来源：合肥物质科学研究院
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