| Extraordinary optical transmission through metal gratings with single and double grooved surfaces |
| |
| 作者姓名： | 汪丽春 邓立 崔妮 钮月萍 龚尚庆 |
| |
| 作者单位： | State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate School of Chinese Academy of Sciences, Beijing 100039, China;State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate School of Chinese Academy of Sciences, Beijing 100039, China;State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate School of Chinese Academy of Sciences, Beijing 100039, China;State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
| |
| 基金项目： | Project supported by the National
Natural Science Foundation of China (Grant No. 60708008) and the
Project of Academic Leaders in Shanghai (Grant No. 07XD14030) and
the Knowledge Innovation Program of the Chinese Academy of
Sciences. |
| |
| 摘 要： | We investigate the transmission properties of a normally incident TM plane wave through metal films with periodic parabolic-shaped grooves on single and double surfaces using the finite-difference-time-domain method. Nearly zero transmission efficiency is found at wavelengths corresponding to surface plasmon excitation on a flat surface in the case where the single surface is grooved. Meanwhile, resonant excitation of surface plasmon polariton (SPP) Bloch modes leads to a strong transmission peak at slightly larger wavelengths. When the grating is grooved on double surfaces, the transmission enhancement can be dramatically improved due to the resonant tunnelling between SPP Bloch modes.
|
| 关 键 词： | metal grating surface plasmon transmission |
| 收稿时间： | 2009-02-19 |
Extraordinary optical transmission through metal gratings with single and double grooved surfaces |
| |
| Wang Li-Chun,Deng Li,Cui Ni,Niu Yue-Ping and Gong Shang-Qing.Extraordinary optical transmission through metal gratings with single and double grooved surfaces[J].Chinese Physics B,2010,19(1):17303-017303. |
| |
| Authors: | Wang Li-Chun Deng Li Cui Ni Niu Yue-Ping and Gong Shang-Qing |
| |
| Affiliation: | State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;Graduate School of Chinese Academy of Sciences, Beijing 100039, China |
| |
| Abstract: | We investigate the transmission properties of a normally
incident TM plane wave through metal films with periodic
parabolic-shaped grooves on single and double surfaces using the
finite-difference-time-domain method. Nearly zero transmission
efficiency is found at wavelengths corresponding to surface plasmon
excitation on a flat surface in the case where the single surface is
grooved. Meanwhile, resonant excitation of surface plasmon polariton
(SPP) Bloch modes leads to a strong transmission peak at slightly
larger wavelengths. When the grating is grooved on double surfaces,
the transmission enhancement can be dramatically improved due to the
resonant tunnelling between SPP Bloch modes. |
| |
| Keywords: | metal grating surface plasmon transmission |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|
