Temporal coupled-mode theory for resonant apertures

被引：74
|
作者：
Verslegers, Lieven [1 ,2 ]
Yu, Zongfu [1 ,2 ]
Catrysse, Peter B. [1 ,2 ]
Fan, Shanhui [1 ,2 ]
机构：
[1] Stanford Univ, Edward L Ginzton Lab, Stanford, CA 94305 USA
[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2010年 / 27卷 / 10期
关键词：
SINGLE SUBWAVELENGTH APERTURE; C-SHAPED NANOAPERTURE; LIGHT TRANSMISSION; OPTICAL ANTENNAS; GERMANIUM PHOTODETECTOR; FANO RESONANCE; METALLIC FILM; SLIT; ARRAYS; ABSORPTION;
D O I：
10.1364/JOSAB.27.001947
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We develop the coupled-mode theory for nanoscale resonant apertures. We show that the maximum transmission and absorption cross sections for subwavelength resonant apertures are only related to the wavelength of the incident light and the directivity of the aperture's radiation pattern. A general relation between the transmission cross section and the directivity is proven from the coupled-mode theory. As a specific example, we apply the theory to a nanoslit aperture in a metallic film and obtain excellent agreement with direct numerical simulations. (C) 2010 Optical Society of America
引用
收藏
页码：1947 / 1956
页数：10
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