紫外蝴蝶结形纳米天线的直接近场光学成像

Direct near-field optical imaging of UV bowtie nanoantennas.

作者信息

Zhou Liangcheng, Gan Qiaoqiang, Bartoli Filbert J, Dierolf Volkmar

机构信息

Center for Optical Technologies Lehigh University, Bethlehem, PA 18015, USA.

出版信息

Opt Express. 2009 Oct 26;17(22):20301-6. doi: 10.1364/OE.17.020301.

DOI:10.1364/OE.17.020301

PMID:19997256

Abstract

We report near-field optical imaging of bowtie nanoantennas obtained using a UV near-field scanning optical microscope (NSOM). A strong and highly localized UV intensity profile was observed at the antenna gap due to the localized surface plasmon resonance. The relationship of optical field enhancement and antenna size is discussed based on numerical simulations and NSOM experiments.

摘要

我们报告了使用紫外近场扫描光学显微镜（NSOM）获得的蝴蝶结形纳米天线的近场光学成像。由于局部表面等离子体共振，在天线间隙处观察到强烈且高度局域化的紫外强度分布。基于数值模拟和NSOM实验讨论了光场增强与天线尺寸之间的关系。