Far-Field Optical Imaging of a Linear Array of Coupled Gold Nanocubes: Direct Visualization of Dark Plasmon Propagating Modes

被引：61

作者：

Chen, Hung-Ying ^{[2
]}

He, Chieh-Lun ^{[3
]}

Wang, Chun-Yuan ^{[2
]}

Lin, Meng-Hsien ^{[3
]}

Mitsui, Daisuke ^{[4
]}

Eguchi, Miharu ^{[4
]}

Teranishi, Toshiharu ^{[1
,5
]}

Gwo, Shangjr ^{[2
,3
]}

机构：

[1] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

[3] Natl Tsing Hua Univ, Inst Nanoengn & Microsyst, Hsinchu 30013, Taiwan

[4] Univ Tsukuba, Grad Sch Pure & Appl Sci, Dept Chem, Tsukuba, Ibaraki 3058571, Japan

[5] Japan Sci & Technol Agcy JST, CREST, Tsukuba, Ibaraki 3058571, Japan

来源：

ACS NANO | 2011年 / 5卷 / 10期

关键词：

dark plasmon mode; nanoantenna array; gold nanocube; plasmon coupling; ROOM-TEMPERATURE; NANOPARTICLES; ANTENNAS; LIGHT; NANOSTRUCTURES; SHAPES; DIMERS; BRIGHT;

D O I：

10.1021/nn2029007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Plasmonic nanoantenna arrays hold great promise for diffraction-unlimited light localization, confinement, and transport. Here, we report on linear plasmonic nanoantenna arrays composed of colloidal gold nanocubes precisely assembled using a nanomanipulation technique. In particular, we show the direct evidence of dark propagating modes In the plasmon coupling regime, allowing for transport of guided plasmon waves without far-field radiation losses. Additionally, we demonstrate the possibility of plasmon dispersion engineering in coupled gold nanocube chains. By assembling a nanocube chain with two sections of coupled nanocubes of different intercube separations, we are able to produce the effect of a band-pass nanofilter.

引用

页码：8223 / 8229

页数：7

共 39 条

[1] Input impedance, nanocircuit loading, and radiation tuning of optical nanoantennas [J].