Optical Near-Field Mapping of Plasmonic Nanoprisms
文献类型：期刊论文
| 作者 | Rang, M ; Jones, AC ; Zhou, F ; Li, ZY ; Wiley, BJ ; Xia, YN ; Raschke, MB |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2008 |
| 卷号 | 8期号:10页码:3357 |
| 关键词 | SINGLE SILVER NANOPARTICLES SURFACE-PLASMONS CONTRAST AGENTS GOLD NANOCAGES SHAPE SPECTROSCOPY NANOSTRUCTURES FLUORESCENCE MICROSCOPY SCATTERING |
| ISSN号 | 1530-6984 |
| 通讯作者 | Raschke, MB (reprint author), Univ Washington, Dept Chem, Seattle, WA 98195 USA. |
| 中文摘要 | The optical local-field enhancement on nanometer length scales provides the basis for plasmonic metal nanostructures to serve as molecular sensors and as nanophotonic devices. However, particle morphology and the associated surface plasmon resonance alone do not uniquely reflect the important details of the local field distribution. Here, we use interferometric homodyne tip-scattering near-field microscopy for plasmonic near-field imaging of crystalline triangular silver nanoprisms. Strong spatial field variation on lengths scales as short as 20 nm are observed sensitively depending on structural details and environment. The poles of the dipole and quadrupole plasmon modes, as identified by phase-sensitive probing and calculations performed in the discrete dipole approximation (DDA), reflect the particle symmetry. Together with the observation that the largest enhancement is not necessarily found to be associated with the tips of the nanoprisms, our results provide critical information for the selection of particle geometries as building blocks for plasmonic device applications. |
| 收录类别 | SCI |
| 资助信息 | National Science Foundatio [CHE 0748226, DMR-0451788]; National Science Foundation Graduate Research Fellowship; National Natural Science Foundation of China [10525419, 60736041] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50309]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Rang, M,Jones, AC,Zhou, F,et al. Optical Near-Field Mapping of Plasmonic Nanoprisms[J]. NANO LETTERS,2008,8(10):3357. |
| APA | Rang, M.,Jones, AC.,Zhou, F.,Li, ZY.,Wiley, BJ.,...&Raschke, MB.(2008).Optical Near-Field Mapping of Plasmonic Nanoprisms.NANO LETTERS,8(10),3357. |
| MLA | Rang, M,et al."Optical Near-Field Mapping of Plasmonic Nanoprisms".NANO LETTERS 8.10(2008):3357. |
入库方式： OAI收割
来源：物理研究所
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