Asymmetric coupling between subradiant and superradiant plasmonic resonances and its enhanced sensing performance

被引：198

作者：

Chen, Chia-Yun ^{[1
]}

Un, Ieng-Wai ^{[1
]}

Tai, Nyan-Hwa ^{[1
]}

Yen, Ta-Jen ^{[1
,2
]}

机构：

[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

[2] Natl Tsing Hua Univ, Inst NanoEngn & MicroSyst, Hsinchu 30013, Taiwan

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 17期

关键词：

LOW-FREQUENCY PLASMONS; NEGATIVE REFRACTION; MAGNETIC RESPONSE; METAMATERIALS; HYBRIDIZATION; BAND;

D O I：

10.1364/OE.17.015372

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present symmetric and asymmetric couplings within a pair of split-ring resonators (SRRs). The former shows a single transmittance dip, following the equivalent circuit model; yet, the latter introduces an additional transmittance peak, stemming from an asymmetrically coupled resonance (ACR) between the subradiant and superradiant modes. The mechanism of such induced transparency is elucidated well by the suppression of induced currents within the SRR element with a lower quality factor. Finally, the excitation of ACR is further associated with remarkable confinement of electromagnetic field, providing a compelling sensing performance based on its excellent sensitivity and figure of merit. (C) 2009 Optical Society of America

引用

页码：15372 / 15380

页数：9

共 36 条

[11] Electric coupling to the magnetic resonance of split ring resonators [J].

Katsarakis, N ;

Koschny, T ;

Kafesaki, M ;

Economou, EN ;

Soukoulis, CM .

APPLIED PHYSICS LETTERS, 2004, 84 (15) :2943-2945

[12] Negative refraction at visible frequencies [J].

Lezec, Henri J. ;

Dionne, Jennifer A. ;

Atwater, Harry A. .

SCIENCE, 2007, 316 (5823) :430-432

[13] Surface-plasmon-induced optical magnetic response in perforated trilayer metamaterial [J].

Li, T. ;

Liu, H. ;

Wang, F. M. ;

Li, J. Q. ;

Zhu, Y. Y. ;

Zhu, S. N. .

PHYSICAL REVIEW E, 2007, 76 (01)

[14] Magnetic response of metamaterials at 100 terahertz [J].

Linden, S ;

Enkrich, C ;

Wegener, M ;

Zhou, JF ;

Koschny, T ;

Soukoulis, CM .

SCIENCE, 2004, 306 (5700) :1351-1353

[15] Magnetoinductive and Electroinductive Coupling in Plasmonic Metamaterial Molecules [J].

Liu, Na ;

Kaiser, Stefan ;

Giessen, Harald .

ADVANCED MATERIALS, 2008, 20 (23) :4521-4525

[16] Contributions from radiation damping and surface scattering to the linewidth of the longitudinal plasmon band of gold nanorods: a single particle study [J].

Novo, Carolina ;

Gomez, Daniel ;

Perez-Juste, Jorge ;

Zhang, Zhenyuan ;

Petrova, Hristina ;

Reismann, Maximilian ;

Mulvaney, Paul ;

Hartland, Gregory V. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (30) :3540-3546

[17] 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

[18] Low frequency plasmons in thin-wire structures [J].

Pendry, JB ;

Holden, AJ ;

Robbins, DJ ;

Stewart, WJ .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (22) :4785-4809

[19] Extremely low frequency plasmons in metallic mesostructures [J].

Pendry, JB ;

Holden, AJ ;

Stewart, WJ ;

Youngs, I .

PHYSICAL REVIEW LETTERS, 1996, 76 (25) :4773-4776

[20] Negative refraction makes a perfect lens [J].

Pendry, JB .

PHYSICAL REVIEW LETTERS, 2000, 85 (18) :3966-3969

← 1 2 3 4 →