Dispersion relations for plasmons in complex-shaped nanoparticle chains

被引：8

作者：

Pikalov, Anton M. ^{[1
]}

Dorofeenko, Alexander, V ^{[2
,3
,4
]}

Lozovik, Yurii E. ^{[3
,5
,6
]}

机构：

[1] Moscow MV Lomonosov State Univ, Phys Dept, 1 Leninskie Gory, Moscow 119991, Russia

[2] Inst Theoret & Appl Electromagnet, 13 Izhorskaya, Moscow 125412, Russia

[3] Dukhov Res Inst Automat, 22 Suschevskaya, Moscow 127055, Russia

[4] Moscow Inst Phys & Technol, 9 Inst Skiy Pereulok, Dolgoprudnyi 141700, Moscow Region, Russia

[5] RAS, Inst Spect, 5 Fizicheskaya, Troitsk 142190, Russia

[6] Natl Res Univ, Higher Sch Econ, 20 Myasnitskaya, Moscow 101000, Russia

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 08期

基金：

俄罗斯科学基金会;

关键词：

SPLIT-RING-RESONATORS; WAVE-GUIDE; MODES; TRANSPORT;

D O I：

10.1103/PhysRevB.98.085134

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A method for finding dispersion in chains of plasmonic particles of arbitrary shape is proposed. Our approach is based on analytic continuation via polylogarithms and is basically a generalization of the method known for spherical nanoparticle chains. As an example, we consider an axial chain of split-ring resonators. Three distinct solutions are distinguished, namely, two plasmons and a nonexponential wave. Dispersion relations, decay profiles, and spectra of excitation by a point source are obtained and compared with that in a spherical nanoparticle chain. The nuances of implementing the method are discussed.

引用

页数：14

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