Light transmission through a subwavelength slit: Waveguiding and optical vortices

被引：82

作者：

Schouten, HF

Visser, TD

Lenstra, D

Blok, H

机构：

[1] Free Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

[2] Delft Univ Technol, Dept Elect Engn, NL-2628 CD Delft, Netherlands

来源：

PHYSICAL REVIEW E | 2003年 / 67卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.67.036608

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The anomalous (i.e., more than 100%) light transmission through a subwavelength slit in a thin metal plate is accompanied by a combination of waveguiding and phase singularities of the field of power flow near the slit. The crucial role of these phase singularities (such as optical vortices and saddle points) in exciting the waveguide modes is systematically studied. We predict transmission efficiencies as high as 300% for certain configurations.

引用

页数：4

共 20 条

[1] Light transmission through metallic channels much smaller than the wavelength [J].