北京大学学报：自然科学版2012，Vol.48Issue(4)：519-523,5.
一种介质加载型表面等离激元透镜的研究
Study of a Dielectric-Loaded Plasmonic Lens
卢旭星1
作者信息
- 1. 北京大学人工微结构和介观物理国家重点实验室,北京100871
- 折叠
摘要
Abstract
A plasmonic lens based on a thin conical dielectric film adhered to a metallic disk is proposed. The structure converges normal incident light into a circular focal stripe. The circular focal stripe decreases in size with the decreasing of the thickness of the dielectric film, and converges into a focal spot when the thickness is smaller than a critical value. Moreover, the enhancement of the local field can also be improved by using the structure.关键词
表面等离激元/表面等离激元透镜/有限时域差分/局域场增强Key words
surface plasmon polarition (SPP)/plasmonic lens (PL)/finite-difference time-domain (FDTD)/localfield enhancement (LFE)分类
数理科学引用本文复制引用
卢旭星..一种介质加载型表面等离激元透镜的研究[J].北京大学学报：自然科学版,2012,48(4):519-523,5.
