| Graphene-based active slow surface plasmon polaritons | |
Lu, Hua1,2,3; Zeng, Chao3; Zhang, Qiming1; Liu, Xueming3 ; Hossain, Md Muntasir1; Reineck, Philipp1; Gu, Min1,2
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| 2015-02-13 | |
| 发表期刊 | SCIENTIFIC REPORTS
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| 卷号 | 5 |
| 摘要 | Finding new ways to control and slow down the group velocity of light in media remains a major challenge in the field of optics. For the design of plasmonic slow light structures, graphene represents an attractive alternative to metals due to its strong field confinement, comparably low ohmic loss and versatile tunability. Here we propose a novel nanostructure consisting of a monolayer graphene on a silicon based graded grating structure. An external gate voltage is applied to graphene and silicon, which are separated by a spacer layer of silica. Theoretical and numerical results demonstrate that the structure exhibits an ultra-high slowdown factor above 450 for the propagation of surface plasmon polaritons (SPPs) excited in graphene, which also enables the spatially resolved trapping of light. Slowdown and trapping occur in the mid-infrared wavelength region within a bandwidth of similar to 2.1 mu m and on a length scale less than 1/6 of the operating wavelength. The slowdown factor can be precisely tuned simply by adjusting the external gate voltage, offering a dynamic pathway for the release of trapped SPPs at room temperature. The presented results will enable the development of highly tunable optoelectronic devices such as plasmonic switches and buffers. |
| 文章类型 | Article |
| WOS标题词 | Science & Technology |
| DOI | 10.1038/srep08443 |
| 收录类别 | SCI |
| 关键词[WOS] | WAVE-GUIDES ; LIGHT ; METAMATERIALS ; EXCITATION ; OPTICS ; FILMS |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000349252700005 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/24092 |
| 专题 | 瞬态光学研究室 |
| 作者单位 | 1.Swinburne Univ Technol, Fac Sci Engn & Technol, Ctr Microphoton, Hawthorn, Vic 3122, Australia 2.Swinburne Univ Technol, Fac Sci Engn & Technol, CUDOS, Hawthorn, Vic 3122, Australia 3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Hua,Zeng, Chao,Zhang, Qiming,et al. Graphene-based active slow surface plasmon polaritons[J]. SCIENTIFIC REPORTS,2015,5. |
| APA | Lu, Hua.,Zeng, Chao.,Zhang, Qiming.,Liu, Xueming.,Hossain, Md Muntasir.,...&Gu, Min.(2015).Graphene-based active slow surface plasmon polaritons.SCIENTIFIC REPORTS,5. |
| MLA | Lu, Hua,et al."Graphene-based active slow surface plasmon polaritons".SCIENTIFIC REPORTS 5(2015). |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Graphene-based activ（1457KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY | 请求全文 | |
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