Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows
文献类型：期刊论文
| 作者 | Zhao, ZY; Zhao, H; Ako, RT; Zhang, JB; Zhao, HW; Sriram, S |
| 刊名 | OPTICS EXPRESS
 |
| 出版日期 | 2019 |
| 卷号 | 27期号:19页码:26459-26470 |
| 关键词 | ELECTROMAGNETICALLY-INDUCED TRANSPARENCY SLOW LIGHT SURFACE-PLASMONS ANALOG NANOSCALE SENSOR |
| ISSN号 | 1094-4087 |
| DOI | 10.1364/OE.27.026459 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Herein, we demonstrate one of the highest terahertz group delay of 42.4 ps achieved experimentally at 0.23 THz, on a flexible planar metamaterial. The unit cell of metasurface is made up of a textured closed cavity and another experimentally concentric metallic arc. By tuning the central angle of the metallic arc, its intrinsic dipolar mode is in destructive interference with the spoof localized surface plasmon (SLSP) on textured closed cavity, which results in a plasmon-induced transparency phenomenon. The measured transmittances of as-fabricated samples using terahertz-time domain spectroscopy validate numerical results using extended coupled Lorentz oscillator model. It is found that the coupling coefficient and damping ratio of SLSP relies on the radius of the ring structure of textured closed cavity. As a consequence, the slow light maximum values become manoeuverable in strength at certain frequencies of induced transparency windows. To the best of our knowledge, our experimental result is currently the highest value demonstrated so far within metasurface at terahertz band. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32022]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interface Phys, Shanghai 201800, Peoples R China 2.Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China; 3.RMIT Univ, Funct Mat & Microsyst Res Grp, Melbourne, Vic, Australia; 4.RMIT Univ, Micro Nano Res Facil, Melbourne, Vic, Australia; |
| 推荐引用方式 GB/T 7714 | Zhao, ZY,Zhao, H,Ako, RT,et al. Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows[J]. OPTICS EXPRESS,2019,27(19):26459-26470. |
| APA | Zhao, ZY,Zhao, H,Ako, RT,Zhang, JB,Zhao, HW,&Sriram, S.(2019).Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows.OPTICS EXPRESS,27(19),26459-26470. |
| MLA | Zhao, ZY,et al."Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows".OPTICS EXPRESS 27.19(2019):26459-26470. |
入库方式： OAI收割
来源：上海应用物理研究所
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