KMS Chongqing Institute of Green and Intelligent Technology, CAS
| A Pyramid Structured Raman Scattering Probe with Secondary Localization for Sensitive Enhancement | |
Xia, Liangping1,2; Yin, Shaoyun1 ; Gao, Hongtao2; Dong, Xiaochun2; Du, Chunlei1
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| 2015-02-01 | |
| 摘要 | A sensitive surface-enhanced Raman scattering probe structure based on the enhancement of the secondary localization is proposed. The structure is constituted with a silver coated pyramid and a small silver particle at the tip. The silver film coated on the pyramid plays a role of exciting and focusing the surface plasmon wave onto the tip, where the secondary localization is excited by the silver particle and an extraordinarily enhanced electromagnetic field is obtained. The finite difference time domain (FDTD) simulation results demonstrate that the Raman enhancement factor caused by the secondary localization is 1.34 x 10(9) which is 3 orders higher than that of the primary localization structure. |
| 关键词 | Surface-Enhanced Raman Scattering Secondary Localization Pyramid Structure Nanoparticles |
| DOI | 10.1166/jctn.2015.3716 |
| 发表期刊 | JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE
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| ISSN | 1546-1955 |
| 卷号 | 12期号:2页码:194-198 |
| 收录类别 | SCI |
| WOS记录号 | WOS:000351892500006 |
| 语种 | 英语 |
