Observation of near-field coupling in metal nanoparticle chains using far-field polarization spectroscopy

被引：374

作者：

Maier, SA ^{[1
]}

Brongersma, ML ^{[1
]}

Kik, PG ^{[1
]}

Atwater, HA ^{[1
]}

机构：

[1] CALTECH, Thomas J Watson Lab Appl Phys, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.65.193408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Far-field polarization spectroscopy on chains of Au nanoparticles reveals the existence of longitudinal (L) and transverse (T) plasmon-polariton modes. The experimental results provide support for the validity of a recently published dipole model for electromagnetic energy transfer below the diffraction limit along chains of closely spaced metal nanoparticles. The key parameters that govern the energy transport are determined for various interparticle spacings using measurements of the resonance frequencies of L and T modes, yielding a bandwidth of 1.4x10(14) rad/s and a maximum group velocity of v(g)=4.0x10(6) m/s for a 75 nm-spacing.

引用

页码：1 / 4

页数：4

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