Spectral analysis of resonant transmission of light through a single sub-wavelength slit

被引：43
|
作者：
Lindberg, J
Lindfors, K
Setälä, T
Kaivola, M
Friberg, AT
机构：
[1] Aalto Univ, Dept Engn Math & Phys, FIN-02015 Espoo, Finland
[2] Royal Inst Technol, Dept Microelect & Informat Technol, SE-16440 Kista, Sweden
来源：
OPTICS EXPRESS | 2004年 / 12卷 / 04期
关键词：
D O I：
10.1364/OPEX.12.000623
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We analyze the spectral properties of resonant transmission of light through a sub-wavelength slit in a metal film. We show that the enhanced transmission can be understood in terms of interfering surface-wave-like modes propagating in the slit. We characterize the effect of geometrical and material properties of the slit on the transmission spectrum. Furthermore, we show that the wavelength of the transmission resonance strongly depends on the surrounding medium. This effect may be utilized in sensors, imaging, and the detection of, e.g. biomolecules. (C) 2004 Optical Society of America.
引用
收藏
页码：623 / 632
页数：10
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