Electrically tunable negative permeability metamaterials based on nematic liquid crystals

被引：245
作者：
Zhao, Qian
Kang, Lei
Du, Bo
Li, Bo
Zhou, Ji [1 ]
Tang, Hong
Liang, Xiao
Zhang, Baizhe
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 01期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
D O I：
10.1063/1.2430485
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An electrically tunable negative permeability metamaterial consisting of a periodic array of split ring resonators infiltrated with nematic liquid crystals is demonstrated. It shows that the transmitted resonance dip of the metamaterial can be continuously and reversibly adjusted by an applied electric field, and the maximum shift is about 210 MHz with respect to the resonance frequency around 11.08 GHz. Numerical simulation shows that the permeability is negative near the resonance frequency, and the frequency range with negative permeability can be dynamically adjusted and widened by about 200 MHz by the electric field. It provides a convenient means to design adaptive metamaterials.
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页数：3
相关论文
共 21 条
[1]   Liquid-crystal photonic-band-gap materials: The tunable electromagnetic vacuum [J].
Busch, K ;
John, S .
PHYSICAL REVIEW LETTERS, 1999, 83 (05) :967-970
[2]   Controllable left-handed metamaterial and its application to a steerable antenna [J].
Chen, Hongsheng ;
Wu, Bae-Ian ;
Ran, Lixin ;
Grzegorczyk, Tomasz M. ;
Kong, Jin Au .
APPLIED PHYSICS LETTERS, 2006, 89 (05)
[3]   Electrical modulation of silicon-based two-dimensional photonic bandgap structures [J].
Haurylau, M ;
Anderson, SP ;
Marshall, KL ;
Fauchet, PM .
APPLIED PHYSICS LETTERS, 2006, 88 (06)
[4]   Tuning of photonic bandgaps by a field-induced structural change of fractal metamaterials [J].
Hou, B ;
Xu, G ;
Wong, HK ;
Wen, WJ .
OPTICS EXPRESS, 2005, 13 (23) :9149-9154
[5]   Experimental observations of a left-handed material that obeys Snell's law [J].
Houck, AA ;
Brock, JB ;
Chuang, IL .
PHYSICAL REVIEW LETTERS, 2003, 90 (13) :4
[6]   Nanosphere dispersed liquid crystals for tunable negative-zero-positive index of refraction in the optical and terahertz regimes [J].
Khoo, I. C. ;
Werner, D. H. ;
Liang, X. ;
Diaz, A. ;
Weiner, B. .
OPTICS LETTERS, 2006, 31 (17) :2592-2594
[7]   Ferroelectric inverse opals with electrically tunable photonic band gap [J].
Li, B ;
Zhou, J ;
Li, LT ;
Wang, XJ ;
Liu, XH ;
Zi, J .
APPLIED PHYSICS LETTERS, 2003, 83 (23) :4704-4706
[8]   LIQUID-CRYSTAL MILLIMETER-WAVE ELECTRONIC PHASE-SHIFTER [J].
LIM, KC ;
MARGERUM, JD ;
LACKNER, AM .
APPLIED PHYSICS LETTERS, 1993, 62 (10) :1065-1067
[9]   Numerical studies of left-handed materials and arrays of split ring resonators [J].
Markos, P ;
Soukoulis, CM .
PHYSICAL REVIEW E, 2002, 65 (03)
[10]   Role of bianisotropy in negative permeability and left-handed metamaterials -: art. no. 144440 [J].
Marqués, R ;
Medina, F ;
Rafii-El-Idrissi, R .
PHYSICAL REVIEW B, 2002, 65 (14)
123