Tunable Optical Antennas Based on Metallic Nanoshells with Nanoknobs

被引：5

作者：

Denisyuk, Andrey I. ^{[1
]}

Tinskaya, Maria A. ^{[1
]}

Petrov, Mikhail I. ^{[2
,3
]}

Shelaev, Artem V. ^{[4
]}

Dorozhkin, Pavel S. ^{[4
]}

机构：

[1] St Petersburg State Univ Informat Technol Mech &, St Petersburg 197101, Russia

[2] Univ Eastern Finland, Joensuu 80101, Finland

[3] St Petersburg Acad Univ RAS, St Petersburg 194201, Russia

[4] NT MDT Co, Moscow 124482, Russia

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2012年 / 12卷 / 11期

关键词：

Optical Antenna; Plasmonic Nanostructure; Surface Plasmon Resonance; Plasmon Hybridization; Nanoparticle Manipulation; NANOPARTICLES; MICROSCOPY;

D O I：

10.1166/jnn.2012.6477

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate optical properties of a new complex plasnnonic nanostructure, which consists of a spherical metallic nanoshell and a small metallic nanoparticle ("nanoknob") situated on its surface. The plasmon resonance wavelength of the entire structure is guided by the geometrical and material properties of the nanoshell whereas the electromagnetic field of the incident light is localized and enhanced near the "nanoknob." The idea is supported with electromagnetic modeling and near-field optical microscopy imaging. In addition, we proposed and demonstrated a new method of nanoparticle precise manipulation under electron beam, which could be used in fabrication of such plasmonic structures and other nanosized elements.

引用

页码：8651 / 8655

页数：5

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