Extraordinary properties of light transmission through a small chiral hole in a metallic screen

被引：27

作者：

Krasavin, A. V. ^{[1
]}

Schwanecke, A. S. ^{[1
]}

Zheludev, N. I. ^{[1
]}

机构：

[1] Univ Southampton, Sch Phys & Astron, EPSRC NanoPhoton Portfolio Ctr, Southampton SO17 1BJ, Hants, England

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2006年 / 8卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

planar chirality; metal nanostructures; extraordinary transmission; polarization;

D O I：

10.1088/1464-4258/8/4/S08

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The true three-dimensional finite element numerical solution of Maxwell's equations shows that the propagation of light through a thin flat free-standing metallic screen containing a hole of twisted shape is sensitive to whether the incident wave is left or right circularly polarized. The intensity map and polarization state of light are dramatically changed depending on the mutual direction of the hole's twist and the incident light's wave polarization handedness. We also observed a strong concentration of the transmitted field at the centre of the chiral hole when light in the object plane rotates against the twist of the investigated gammadion type structure.

引用

页码：S98 / S105

页数：8

共 23 条

[1] Optical whirlpool on an absorbing metallic nanoparticle [J].