Flexible liquid metal-filled metamaterial absorber on polydimethylsiloxane (PDMS)

被引：58

作者：

Ling, Kenyu ^{[1
]}

Kim, Kyeoungseob ^{[1
]}

Lim, Sungjoon ^{[1
]}

机构：

[1] Chung Ang Univ, Sch Elect & Elect Engn, Lab Electromagnet & Opt, Seoul 156756, South Korea

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 16期

基金：

新加坡国家研究基金会;

关键词：

Metamaterials - Metals - Microchannels - Indium alloys - Polydimethylsiloxane - Gallium alloys - Natural frequencies - Silicones - Fluidic devices - Microfluidics;

D O I：

10.1364/OE.23.021375

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we propose a novel flexible metamaterial (MM) absorber. The conductive pattern consists of liquid metal eutectic gallium indium alloy (EGaIn) enclosed in elastomeric microfluidic channels. Polydimethylsiloxane (PDMS) material is used as a supporting substrate. The proposed MM absorber is flexible because of its liquid metal and PDMS substrate. Numerical simulations and experimental results are presented when the microfluidic channels are filled with liquid metal. In order to evaluate the proposed MM absorber's performance, the fabricated absorber prototype is tested with rectangular waveguides. Almost perfect absorptivity is achieved at a resonant frequency of 8.22 GHz. (C) 2015 Optical Society of America

引用

页码：21375 / 21383

页数：9

共 18 条

[1] Studies on surface wettability of poly(dimethyl) siloxane (PDMS) and glass under oxygen-plasma treatment and correlation with bond strength [J].

Bhattacharya, S ;

Datta, A ;

Berg, JM ;

Gangopadhyay, S .

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2005, 14 (03) :590-597

[2] Polarization insensitive and omnidirectional broadband near perfect planar metamaterial absorber in the near infrared regime [J].

Chen, Shuqi ;

Cheng, Hua ;

Yang, Haifang ;

Li, Junjie ;

Duan, Xiaoyang ;

Gu, Changzhi ;

Tian, Jianguo .

APPLIED PHYSICS LETTERS, 2011, 99 (25)

[3] Liquid metal stretchable unbalanced loop antenna [J].

Cheng, Shi ;

Rydberg, Anders ;

Hjort, Klas ;

Wu, Zhigang .

APPLIED PHYSICS LETTERS, 2009, 94 (14)

[4] A metamaterial for directive emission -: art. no. 213902 [J].

Enoch, S ;

Tayeb, G ;

Sabouroux, P ;

Guérin, N ;

Vincent, P .

PHYSICAL REVIEW LETTERS, 2002, 89 (21)

[5]

Fallahzadeh S., 2012, EL ENG ICEE 2012 20

[6] Sub-diffraction-limited optical imaging with a silver superlens [J].

Fang, N ;

Lee, H ;

Sun, C ;

Zhang, X .

SCIENCE, 2005, 308 (5721) :534-537

[7] Flexible Liquid Metal Alloy (EGaIn) Microstrip Patch Antenna [J].

Hayes, Gerard J. ;

So, Ju-Hee ;

Qusba, Amit ;

Dickey, Michael D. ;

Lazzi, Gianluca .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2012, 60 (05) :2151-2156

[8] Flexible metamaterial absorbers for stealth applications at terahertz frequencies [J].

Iwaszczuk, Krzysztof ;

Strikwerda, Andrew C. ;

Fan, Kebin ;

Zhang, Xin ;

Averitt, Richard D. ;

Jepsen, Peter Uhd .

OPTICS EXPRESS, 2012, 20 (01) :635-643

[9] Surface relief structures for a flexible broadband terahertz absorber [J].

Kim, Dong-Hyun ;

Kim, Dae-Seon ;

Hwang, Sehyun ;

Jang, Jae-Hyung .

OPTICS EXPRESS, 2012, 20 (15) :16815-16822

[10] Perfect metamaterial absorber [J].

Landy, N. I. ;

Sajuyigbe, S. ;

Mock, J. J. ;

Smith, D. R. ;

Padilla, W. J. .

PHYSICAL REVIEW LETTERS, 2008, 100 (20)

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