SRRs and Cross Combine Asymmetric Metamaterials Promising for THz Sensor

被引：1

作者：

Chen, Kanglong ^{[1
]}

Ruan, Cunjun ^{[1
,2
]}

Cao, Yunhao ^{[1
]}

机构：

[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Beijing Key Lab Microwave Sensing & Secur Applica, Beijing 100191, Peoples R China

来源：

2020 INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY (ICMMT 2020 ONLINE) | 2020年

基金：

中国国家自然科学基金;

关键词：

THz sensor; metamaterials; Fano resonance; SRR;

D O I：

10.1109/ICMMT49418.2020.9387037

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a high precision Terahertz (THz) sensor based on split ring resonator (SRR) metamaterial with cross combine structure. By rotating the direction of the gap in the ring, an asymmetry can be introduced, where two novel wave peaks are occured. Detail simulition shows the novel valley and peak frequency are 1.38 THz and 1.55 THz, respectively. The two Fano resonance frequency may contribute to the good sensitivity of the sensor using the SRR metamaterial. There is none radiative damping, which will be easily broken by the changing of background. The sensibility has been analyzed thoroughly, which is not less than 28.5 GHz frequency shift with the change of 0.1 reflections index for dielectric material, and there is no any significant vibration in transmission spectra.

引用

页数：3

共 13 条

[1] Low-loss ultra-high-Q dark mode plasmonic Fano metamaterials [J].

Cao, Wei ;

Singh, Ranjan ;

Al-Naib, Ibraheem A. I. ;

He, Mingxia ;

Taylor, Antoinette J. ;

Zhang, Weili .

OPTICS LETTERS, 2012, 37 (16) :3366-3368

[2] Application of metamaterials to ultra-thin radar-absorbing material design [J].

Gao, Q ;

Yin, Y ;

Yan, DB ;

Yuan, NC .

ELECTRONICS LETTERS, 2005, 41 (17) :936-937

[3] Perfect metamaterial absorber [J].

Landy, N. I. ;

Sajuyigbe, S. ;

Mock, J. J. ;

Smith, D. R. ;

Padilla, W. J. .

PHYSICAL REVIEW LETTERS, 2008, 100 (20)

[4]

Luk'yanchuk B, 2010, NAT MATER, V9, P707, DOI [10.1038/NMAT2810, 10.1038/nmat2810]

[5] Thin-film sensing with planar terahertz metamaterials: sensitivity and limitations [J].

O'Hara, John F. ;

Singh, Ranjan ;

Brener, Igal ;

Smirnova, Evgenya ;

Han, Jiaguang ;

Taylor, Antoinette J. ;

Zhang, Weili .

OPTICS EXPRESS, 2008, 16 (03) :1786-1795

[6] Detection of microorganisms using terahertz metamaterials [J].

Park, S. J. ;

Hong, J. T. ;

Choi, S. J. ;

Kim, H. S. ;

Park, W. K. ;

Han, S. T. ;

Park, J. Y. ;

Lee, S. ;

Kim, D. S. ;

Ahn, Y. H. .

SCIENTIFIC REPORTS, 2014, 4

[7] Ultrasensitive terahertz sensing with high-Q Fano resonances in metasurfaces [J].

Singh, Ranjan ;

Cao, Wei ;

Al-Naib, Ibraheem ;

Cong, Longqing ;

Withayachumnankul, Withawat ;

Zhang, Weili .

APPLIED PHYSICS LETTERS, 2014, 105 (17)

[8] Sharp Fano resonances in THz metamaterials [J].

Singh, Ranjan ;

Al-Naib, Ibraheem A. I. ;

Koch, Martin ;

Zhang, Weili .

OPTICS EXPRESS, 2011, 19 (07) :6312-6319

[9] Metamaterials and negative refractive index [J].

Smith, DR ;

Pendry, JB ;

Wiltshire, MCK .

SCIENCE, 2004, 305 (5685) :788-792

[10] Mechanisms and applications of terahertz metamaterial sensing: a review [J].

Xu, Wendao ;

Xie, Lijuan ;

Ying, Yibin .

NANOSCALE, 2017, 9 (37) :13864-13878

← 1 2 →