Polarization sensitive sub-wavelength metallic structures: toward near-field light confinement control

被引：0
|
作者：
A. Ndao
Q. Vagne
J. Salvi
F. I. Baida
机构：
[1] Université de Franche–Comté,Département d’Optique P.M. Duffieux, Institut FEMTO
来源：
Applied Physics B | 2012年 / 106卷
关键词：
TE01 Mode; Cutoff Wavelength; Rectangular Aperture; Light Confinement; Experimental Transmission Spectrum;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, we seek to demonstrate spatial near field light confinement with a truly sub-wavelength resolution in the visible range. For that purpose, an opaque metallic screen is pierced with an array of rectangular nano-apertures which support polarization sensitive guided modes. We show that it is possible to switch on and off sub-wavelength apertures about only 200 nanometers away. Theoretical results have been performed (3D-FDTD home-made code) and are in good agreement with the experimental results. These kinds of nano-structures might offer a convenient and versatile way to sub-wavelength light addressing, optical trapping, molecular, or nano-probing, non-linear spectroscopy.
引用
收藏
页码：857 / 862
页数：5
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