Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows

doi:10.1364/OE.27.026459

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Demonstration of group delay above 40 ps at terahertz plasmon-induced transparency windows
	Zhao, ZY ; Zhao, H ; Ako, RT ; Zhang, JB ; Zhao, HW ; Sriram, S
刊名	OPTICS EXPRESS
	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
内容类型	期刊论文
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.