Giant optical activity from the radiative electromagnetic interactions in plasmonic nanoantennas
文献类型：期刊论文
| 作者 | Wang, P ; Chen, L ; Wang, RY ; Ji, YL ; Zhai, DW ; Wu, XC ; Liu, Y ; Chen, KQ ; Xu, HX |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2013 |
| 卷号 | 5期号:9页码:3889 |
| ISSN号 | 2040-3364 |
| 通讯作者 | Wang, RY (reprint author), Beijing Inst Technol, Sch Phys, Key Lab Cluster Sci, Minist Educ, Beijing 100081, Peoples R China. |
| 中文摘要 | We fabricate the linear chains of twisted gold nanorods by a facile chiral molecular templating method. In such a chiral plasmonic system, particle-particle separation distances are in the order of the light wavelength and are much larger than the sizes of individual particles. As a result, the inter-particle interactions in this chiral system are mediated mainly by a relatively weak far-field plasmonic coupling, rather than a strong near-field coupling. However, such a chiral system of twisted gold nanorods show a huge surface plasmon based circular dichroism response, with the highest anisotropy factor around 0.027. This is in contrast to the previous studies in which near-field plasmonic coupling is an indispensable prerequisite to obtain strong optical activity from a chiral plasmonic nanostructure. Our study demonstrates here an alternative strategy for achieving huge chiroptical response of a chiral plasmonic nanostructure based on far-field, radiative electromagnetic interactions of metallic nanoparticles. Theoretical simulations show a satisfactory agreement with the experimental results. This study may provide more flexible ways to design chiral plasmon nanostructures with strong CD responses for various applications. |
| 资助信息 | National Natural Science Foundation of China [11174033, 91127013, 10874233, 11004237]; MOST Grant [2009CB930700]; Knowledge Innovation Project of CAS [KJCX2-EW-W04]; Youth Innovation Promotion Association of CAS |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57045]  |
| 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 | Wang, P,Chen, L,Wang, RY,et al. Giant optical activity from the radiative electromagnetic interactions in plasmonic nanoantennas[J]. NANOSCALE,2013,5(9):3889. |
| APA | Wang, P.,Chen, L.,Wang, RY.,Ji, YL.,Zhai, DW.,...&Xu, HX.(2013).Giant optical activity from the radiative electromagnetic interactions in plasmonic nanoantennas.NANOSCALE,5(9),3889. |
| MLA | Wang, P,et al."Giant optical activity from the radiative electromagnetic interactions in plasmonic nanoantennas".NANOSCALE 5.9(2013):3889. |
入库方式： OAI收割
来源：物理研究所
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