Plasmon tuning and local field enhancement maximization of the nanocrescent

被引：61

作者：

Ross, Benjamin M. ^{[1
]}

Lee, Luke P. ^{[1
]}

机构：

[1] Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Biomol Nanotechnol Ctr, Berkeley Sensor & Actuator Ctr,Dept Bioengn, Berkeley, CA 94720 USA

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 27期

关键词：

D O I：

10.1088/0957-4484/19/27/275201

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a systematic numerical study of plasmon resonance of the nanocrescent. We show that by varying the nanocrescent geometry, the plasmon resonance peak can be tuned into the near-infrared and local field enhancement can be increased significantly, with maximum enhancement of the electric field amplitude of approximately 100 for realistic geometric parameters. Because of its wide tunability, high local field enhancement, and geometry which utilizes both sharp features and intra-particle coupling, the nanocrescent is a structure well suited for in vivo cellular imaging as well as in vitro diagnostic applications.

引用

页数：6

共 27 条

[1] Optical properties of coupled metallic nanorods for field-enhanced spectroscopy [J].