A novel dual-band terahertz metamaterial absorber for a sensor application

被引：317

作者：

Wang, Ben-Xin ^{[1
]}

Zhai, Xiang ^{[1
]}

Wang, Gui-Zhen ^{[1
]}

Huang, Wei-Qing ^{[1
]}

Wang, Ling-Ling ^{[1
]}

机构：

[1] Hunan Univ, Sch Phys & Elect, Key Lab Micronano Phys & Technol, Changsha 410082, Hunan, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 01期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

BROAD-BAND; PERFECT ABSORBER; ABSORPTION; MULTIBAND; REGIME; THIN;

D O I：

10.1063/1.4905261

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a new type of dual-band terahertz metamaterial absorber formed by a patterned metallic strip and a dielectric layer on top of a metallic ground plane. It is found that besides a strong absorption in the fundamental resonance, a prominent high-order resonance with near-unity absorption is also unveiled. The origin of the induced dual-band absorption was elucidated. Importantly, the quality factor (Q) and the figure of merit (FOM) of the high-order resonance are 8.4 and 22.7 times larger than that of the fundamental resonance, respectively, which makes the proposed absorber to have significant potential in biological monitoring and sensing. Moreover, we demonstrate a dual-band and insensitive for two orthogonal polarizations terahertz absorber based on a metallic cross and a metallic ground plane separated by a dielectric layer. The Q and FOM of the high-order resonance are still larger than that of the fundamental resonance. The proposed absorbers appear to be very promising for solar cells, detection, and imaging applications. (C) 2015 AIP Publishing LLC.

引用

页数：5

共 36 条

[1] Biosensing with plasmonic nanosensors [J].

Anker, Jeffrey N. ;

Hall, W. Paige ;

Lyandres, Olga ;

Shah, Nilam C. ;

Zhao, Jing ;

Van Duyne, Richard P. .

NATURE MATERIALS, 2008, 7 (06) :442-453

[2] Two-dimensional subwavelength meta-nanopillar array for efficient visible light absorption [J].

Cao, S. ;

Yu, W. ;

Wang, T. ;

Xu, Z. ;

Wang, C. ;

Fu, Y. ;

Liu, Y. .

APPLIED PHYSICS LETTERS, 2013, 102 (16)

[3]

Cong L., 2014, ARXIV14083711

[4] Ultrabroadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab [J].

Cui, Yanxia ;

Fung, Kin Hung ;

Xu, Jun ;

Ma, Hyungjin ;

Jin, Yi ;

He, Sailing ;

Fang, Nicholas X. .

NANO LETTERS, 2012, 12 (03) :1443-1447

[5] A thin film broadband absorber based on multi-sized nanoantennas [J].

Cui, Yanxia ;

Xu, Jun ;

Fung, Kin Hung ;

Jin, Yi ;

Kumar, Anil ;

He, Sailing ;

Fang, Nicholas X. .

APPLIED PHYSICS LETTERS, 2011, 99 (25)

[6] Design of multi-band metamaterial perfect absorbers with stacked metal-dielectric disks [J].

Dayal, Govind ;

Ramakrishna, S. Anantha .

JOURNAL OF OPTICS, 2013, 15 (05)

[7] Ultra-broadband microwave metamaterial absorber [J].

Ding, Fei ;

Cui, Yanxia ;

Ge, Xiaochen ;

Jin, Yi ;

He, Sailing .

APPLIED PHYSICS LETTERS, 2012, 100 (10)

[8] Cut-wire pairs and plate pairs as magnetic atoms for optical metamaterials [J].

Dolling, G ;

Enkrich, C ;

Wegener, M ;

Zhou, JF ;

Soukoulis, CM .

OPTICS LETTERS, 2005, 30 (23) :3198-3200

[9] Polarization insensitive, broadband terahertz metamaterial absorber [J].

Grant, James ;

Ma, Yong ;

Saha, Shimul ;

Khalid, Ata ;

Cumming, David R. S. .

OPTICS LETTERS, 2011, 36 (17) :3476-3478

[10] High performance optical absorber based on a plasmonic metamaterial [J].

Hao, Jiaming ;

Wang, Jing ;

Liu, Xianliang ;

Padilla, Willie J. ;

Zhou, Lei ;

Qiu, Min .

APPLIED PHYSICS LETTERS, 2010, 96 (25)

← 1 2 3 4 →