Tunable optical coupling in regular arrays of gold and silver nanoparticles

被引：0
|
作者：
Smith, David A. [1 ]
Pinchuk, Anatoliy O. [1 ]
机构：
[1] Univ Colorado, Dept Phys & Energy Sci, Colorado Springs, CO 80918 USA
来源：
PLASMONICS: METALLIC NANOSTRUCTURES AND THEIR OPTICAL PROPERTIES X | 2012年 / 8457卷
基金：
美国国家科学基金会;
关键词：
Surface Plasmon Resonance; nanoparticles; Plasmonics; SURFACE-PLASMON RESONANCE; DISCRETE-DIPOLE APPROXIMATION; NEAR-FIELD; NEGATIVE PERMEABILITY; NANOROD ASSEMBLIES; ABSORPTION; SCATTERING; LIGHT; INDEX; METAMATERIALS;
D O I：
10.1117/12.930751
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report far-field optical extinction spectra of linear chains of gold and silver nanocylinders with interparticle separations close to the particles' surface plasmon resonance (SPR) wavelength. The spectra reveal a typical pattern of dipole-like and quadrupole SPR peaks and additional non-SPR peaks. We rationalize the extra peaks by constructive interference of the scattered and incident electromagnetic fields.
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页数：13
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