Optical focusing by planar lenses based on nano-scale metallic slits in visible regime
文献类型：期刊论文
| 作者 | FengDi ; ZhangChunxi |
| 刊名 | physics procedia
 |
| 出版日期 | 2011 |
| 卷号 | 22页码:428-434 |
| 关键词 | Subwavelength structures Surface plasmons Planar metallic lenses Optical focusing |
| ISSN号 | 1875-3884 |
| 产权排序 | 1 |
| 通讯作者 | feng di |
| 英文摘要 | a kind of planar metallic lenses is proposed to realize optical focusing in the visible wavelength through a metallic film with nano-scale slit arrays, which have the same depth but tuning widths. due to the subwavelength and aperiodic nature of planar metallic lenses, we present the rigorous electromagnetic analysis by using two dimensional finite difference time domain method. the electromagnetic wave transports through the tuning slits in the form of surface plasmon polaritons, and gets the required phase retardations to focusing at the focal plane. we analyze the focusing characteristics of planar dielectric lens and metallic lens with tuning widths that are obtained by generalizing the relevant phase delay, for different incidence polarization waves (tm polarized case and te polarized case). the computational calculation results show that, extraordinary optical transmission of surface plasmon polaritions through non uniform nano-scale metallic slits is observed, and it has contributions to the optical focusing, but cannot increase the focal energy compared with dielectric planar lens with the same profile, and the metallic lenses are more sensitive to the polarization of incidence wave than that of dielectric lenses. the influence of metallic lenses' thickness on the focal characteristics has been analyzed also. |
| 收录类别 | EI ; CPCI |
| 资助信息 | specialized research fund for the doctoral program of higher education; open research fund of state key laboratory of transient optics and photonics, chinese academy of sciences |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/s1875389211007218 |
| 语种 | 英语 |
| 公开日期 | 2012-06-29 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/19758]  |
| 专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
| 推荐引用方式 GB/T 7714 | FengDi,ZhangChunxi. Optical focusing by planar lenses based on nano-scale metallic slits in visible regime[J]. physics procedia,2011,22:428-434. |
| APA | FengDi,&ZhangChunxi.(2011).Optical focusing by planar lenses based on nano-scale metallic slits in visible regime.physics procedia,22,428-434. |
| MLA | FengDi,et al."Optical focusing by planar lenses based on nano-scale metallic slits in visible regime".physics procedia 22(2011):428-434. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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