期刊
NANO LETTERS
卷 10, 期 9, 页码 3665-3669出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl102120p
关键词
Surface plasmons; nanofocusing; field enhancement; tapered waveguide
类别
资金
- Nederlandse organisatie voor Wetenschappelijk Onder-zoek (NWO)
- Stichting Shell Research
- GCEP
We show that surface plasmon polaritons (SPPs) can be concentrated to subwavelength dimensions in a nanoscale dielectric wedge on a metal substrate. An adiabatic model explains how SPPs propagating on a Ag substrate covered with a thin Si film of slowly increasing thickness become highly confined inside the Si layer. Simulations predict strong subwavelength focusing near the surface plasmon resonance frequency. Unlike alternative strategies, this method does not require the nanoscale shaping of metal surfaces.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据