Broadband Tunable and Double Dipole Surface Plasmon Resonance by TiO2 Core/Ag Shell Nanoparticles

被引：11

作者：

Li, Quanshui ^{[1
]}

Zhang, Zhili ^{[1
]}

机构：

[1] Univ Tennessee, Dept Mech Aerosp & Biomed Engn, Knoxville, TN 37996 USA

来源：

PLASMONICS | 2011年 / 6卷 / 04期

关键词：

Core-shell nanoparticle; Plasmonic; Double resonance peaks; SILVER NANOPARTICLES; SCATTERING; GOLD; SPECTROSCOPY; ELECTRODYNAMICS; NANOSTRUCTURES; APPROXIMATION; EXTINCTION; NANOSHELLS; NANOCUBES;

D O I：

10.1007/s11468-011-9264-x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A design of a TiO2 core and Ag shell spherical nanoparticle is theoretically presented. The nanoparticles display double dipole plasmonic resonance peaks: one located at the ultraviolet range, the other is widely tunable from the visible to the near infrared region. The tunability can be easily controlled by varying the sizes of the core and the shell. The near field patterns of the double plasmonic resonance peaks are analyzed, and the dipole resonance modes for those two peaks are confirmed for the suitable core-shell sizes.

引用

页码：779 / 784

页数：6

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