Near-field collimation of light carrying orbital angular momentum with bull's-eye-assisted plasmonic coaxial waveguides
文献类型：期刊论文
| 作者 | Pu, Mingbo; Ma, Xiaoliang; Zhao, Zeyu; Li, Xiong; Wang, Yanqin; Gao, Hui; Hu, Chenggang; Gao, Ping; Wang, Changtao; Luo, Xiangang |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015 |
| 卷号 | 5页码:12108 |
| ISSN号 | 2045-2322 |
| 中文摘要 | The orbital angular momentum (OAM) of light, as an emerging hotspot in optics and photonics, introduces many degrees of freedom for applications ranging from optical communication and quantum processing to micromanipulation. To achieve a high degree of integration, optical circuits for OAM light are essential, which are, however, challenging in the optical regime owing to the lack of well-developed theory. Here we provide a scheme to guide and collimate the OAM beam at the micro-and nano-levels. The coaxial plasmonic slit was exploited as a naturally occurring waveguide for light carrying OAM. Concentric grooves etched on the output surface of the coaxial waveguide were utilized as a plasmonic metasurface to couple the OAM beam to free space with greatly increased beam directivity. Experimental results at lambda = 532 nm validated the novel transportation and collimating effect of the OAM beam. Furthermore, dynamic tuning of the topological charges was demonstrated by using a liquid crystal spatial light modulator (SLM). |
| 英文摘要 | The orbital angular momentum (OAM) of light, as an emerging hotspot in optics and photonics, introduces many degrees of freedom for applications ranging from optical communication and quantum processing to micromanipulation. To achieve a high degree of integration, optical circuits for OAM light are essential, which are, however, challenging in the optical regime owing to the lack of well-developed theory. Here we provide a scheme to guide and collimate the OAM beam at the micro-and nano-levels. The coaxial plasmonic slit was exploited as a naturally occurring waveguide for light carrying OAM. Concentric grooves etched on the output surface of the coaxial waveguide were utilized as a plasmonic metasurface to couple the OAM beam to free space with greatly increased beam directivity. Experimental results at lambda = 532 nm validated the novel transportation and collimating effect of the OAM beam. Furthermore, dynamic tuning of the topological charges was demonstrated by using a liquid crystal spatial light modulator (SLM). |
| 学科主题 | OPTICAL VORTEX; POLARIZED-LIGHT; APERTURE; INTERFERENCE; SURFACE; MODE; LENS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000357717300001 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/6886]  |
| 专题 | 光电技术研究所_微细加工光学技术国家重点实验室（开放室） |
| 推荐引用方式 GB/T 7714 | Pu, Mingbo,Ma, Xiaoliang,Zhao, Zeyu,et al. Near-field collimation of light carrying orbital angular momentum with bull's-eye-assisted plasmonic coaxial waveguides[J]. SCIENTIFIC REPORTS,2015,5:12108. |
| APA | Pu, Mingbo.,Ma, Xiaoliang.,Zhao, Zeyu.,Li, Xiong.,Wang, Yanqin.,...&Luo, Xiangang.(2015).Near-field collimation of light carrying orbital angular momentum with bull's-eye-assisted plasmonic coaxial waveguides.SCIENTIFIC REPORTS,5,12108. |
| MLA | Pu, Mingbo,et al."Near-field collimation of light carrying orbital angular momentum with bull's-eye-assisted plasmonic coaxial waveguides".SCIENTIFIC REPORTS 5(2015):12108. |
入库方式： OAI收割
来源：光电技术研究所
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