Optical scattering resonances of single and coupled dimer plasmonic nanoantennas

被引：139

作者：

Muskens, O. L. ^{[1
]}

Giannini, V. ^{[2
]}

Sanchez-Gil, J. A. ^{[2
]}

Rivas, J. Gomez ^{[1
]}

机构：

[1] AMOLF, FOM, Inst Atom & Mol Phys, NL-5656 AE Eindhoven, Netherlands

[2] CSIC, Inst Estructura Mat, E-28006 Madrid, Spain

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 26期

关键词：

D O I：

10.1364/OE.15.017736

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical resonances of individual plasmonic dimer antennas are investigated using confocal darkfield spectroscopy. Experiments on an array of antennas with varying arm lengths and interparticle gap sizes show large spectral shifts of the plasmon modes due to a combination of geometrical resonances and plasmon hybridization. The resonances of the coupled-dimer antennas are considerably broadened compared to those of single nanorods, which is attributed to a superradiant damping of the coupled antenna modes. The scattering spectra are compared with electrodynamic model calculations that demonstrate both the near-field and far-field characteristics of a half-wave antenna. (c) 2007 Optical Society of America.

引用

页码：17736 / 17746

页数：11

共 34 条

[1] Optical properties of coupled metallic nanorods for field-enhanced spectroscopy [J].

Aizpurua, J ;

Bryant, GW ;

Richter, LJ ;

de Abajo, FJG ;

Kelley, BK ;

Mallouk, T .

PHYSICAL REVIEW B, 2005, 71 (23)

[2]

[Anonymous], 2011, RECENT PAT BIOTECHNO

[3]

[Anonymous], 1987, OPTICAL RESONANCE 2

[4] DISPERSION-RELATIONS FOR NON-RADIATIVE SURFACE PLASMONS ON CYLINDERS [J].

ASHLEY, JC ;

EMERSON, LC .

SURFACE SCIENCE, 1974, 41 (02) :615-618

[5] Strongly interacting plasmon nanoparticle pairs: From dipole-dipole interaction to conductively coupled regime [J].

Atay, T ;

Song, JH ;

Nurmikko, AV .

NANO LETTERS, 2004, 4 (09) :1627-1631

[6] Near-field excitation of nanoantenna resonance [J].

Bakker, Reuben M. ;

Boltasseva, Alexandra ;

Liu, Zhengtong ;

Pedersen, Rasmus H. ;

Gresillon, Samuel ;

Kildishev, Alexander V. ;

Drachev, Vladimir P. ;

Shalaev, Vladimir M. .

OPTICS EXPRESS, 2007, 15 (21) :13682-13688

[7] Surface plasmon subwavelength optics [J].

Barnes, WL ;

Dereux, A ;

Ebbesen, TW .

NATURE, 2003, 424 (6950) :824-830

[8]

Bohren C.F., 1998, ABSORPTION SCATTERIN

[9] Photothermal imaging of nanometer-sized metal particles among scatterers [J].

Boyer, D ;

Tamarat, P ;

Maali, A ;

Lounis, B ;

Orrit, M .

SCIENCE, 2002, 297 (5584) :1160-1163

[10] Optical properties of gold nanorods: DDA simulations supported by experiments [J].

Brioude, A ;

Jiang, XC ;

Pileni, MP .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (27) :13138-13142

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