Impact of resonator geometry and its coupling with ground plane on ultrathin metamaterial perfect absorbers

被引：151

作者：

Huang, Li ^{[2
]}

Chowdhury, Dibakar Roy ^{[1
]}

Ramani, Suchitra ^{[1
]}

Reiten, Matthew T. ^{[1
]}

Luo, Sheng-Nian

Azad, Abul K. ^{[1
]}

Taylor, Antoinette J. ^{[1
]}

Chen, Hou-Tong ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA

[2] Harbin Inst Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 10期

关键词：

BAND; ABSORPTION; DESIGN;

D O I：

10.1063/1.4749823

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the impact of resonator geometry and its coupling with ground plane on the performance of metamaterial perfect absorbers. Using a cross-resonator as an example structure, we find that the absorber thickness can be further reduced through modifying the geometric dimensions of the resonators. Numerical simulations and theoretical calculations reveal that destructive interference of multiple reflections is responsible for the near-unity absorption. The near-field coupling between the resonator array and ground plane can be significant. When this coupling is taken into account, the theoretical results calculated using the interference model are in excellent agreement with experiments and numerical simulations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4749823]

引用

页数：4

共 23 条

[1] Interference theory of metamaterial perfect absorbers
Chen, Hou-Tong
[J]. OPTICS EXPRESS, 2012, 20 (07): : 7165 - 7172
[2] Antireflection Coating Using Metamaterials and Identification of Its Mechanism
Chen, Hou-Tong
Zhou, Jiangfeng
O'Hara, John F.
Chen, Frank
Azad, Abul K.
Taylor, Antoinette J.
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (07)
[3] Ultrabroadband Light Absorption by a Sawtooth Anisotropic Metamaterial Slab
Cui, Yanxia
Fung, Kin Hung
Xu, Jun
Ma, Hyungjin
Jin, Yi
He, Sailing
Fang, Nicholas X.
[J]. NANO LETTERS, 2012, 12 (03) : 1443 - 1447
[4] ENGHETA N, 2002, IEEE ANT PROP SOC IN, V2, P392
[5] Polarization insensitive terahertz metamaterial absorber
Grant, J.
Ma, Y.
Saha, S.
Lok, L. B.
Khalid, A.
Cumming, D. R. S.
[J]. OPTICS LETTERS, 2011, 36 (08) : 1524 - 1526
[6] Nearly total absorption of light and heat generation by plasmonic metamaterials
Hao, Jiaming
Zhou, Lei
Qiu, Min
[J]. PHYSICAL REVIEW B, 2011, 83 (16)
[7] Experimental demonstration of terahertz metamaterial absorbers with a broad and flat high absorption band
Huang, Li
Chowdhury, Dibakar Roy
Ramani, Suchitra
Reiten, Matthew T.
Luo, Sheng-Nian
Taylor, Antoinette J.
Chen, Hou-Tong
[J]. OPTICS LETTERS, 2012, 37 (02) : 154 - 156
[8] Conformal Dual-Band Near-Perfectly Absorbing Mid-Infrared Metamaterial Coating
Jiang, Zhi Hao
Yun, Seokho
Toor, Fatima
Werner, Douglas H.
Mayer, Theresa S.
[J]. ACS NANO, 2011, 5 (06) : 4641 - 4647
[9] A genetic algorithm approach to the design of ultra-thin electromagnetic bandgap absorbers
Kern, DJ
Werner, DH
[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2003, 38 (01) : 61 - 64
[10] Perfect metamaterial absorber
Landy, N. I.
Sajuyigbe, S.
Mock, J. J.
Smith, D. R.
Padilla, W. J.
[J]. PHYSICAL REVIEW LETTERS, 2008, 100 (20)

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