Effects of a bar on optical transmission through Z-shaped metallic slit arrays

We investigate the effects of a bar on optical transmission through Z-shaped metallic slit arrays by using the finite- difference time domain （FDTD） method. A new hybrid Fabry-Perot （FP） surface plasmon polariton （SPP） mode emerges when changing the geometric parameters of the bar, and this mode can...

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Veröffentlicht in:	Chinese physics B 2013-05, Vol.22 (5), p.467-472, Article 057301
1. Verfasser:	吴彩妮李宏建彭校曹广涛刘志敏
Format:	Artikel
Sprache:	eng
Schlagworte:	Arrays Dipping Filled plastics Finite difference method Mathematical analysis Miniaturization Optical switching Plasmons Slits SPP模式光纤传输时域有限差分法狭缝酒吧金属条阵列
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container_title	Chinese physics B
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creator	吴彩妮李宏建彭校曹广涛刘志敏
description	We investigate the effects of a bar on optical transmission through Z-shaped metallic slit arrays by using the finite- difference time domain （FDTD） method. A new hybrid Fabry-Perot （FP） surface plasmon polariton （SPP） mode emerges when changing the geometric parameters of the bar, and this mode can be viewed as a coupling between FP mode and SPP mode. In addition, an obvious dip appears in a featured area when the bar deviates from the central line, and a small displacement of the bar leads to tremendous change of the dip. These behaviors can be attributed to the phase resonance. In short, the structure is very sensitive to the metal bar. Furthermore, it combines photonic device miniaturization with sensitivity, which is useful for making optical switches.
doi_str_mv	10.1088/1674-1056/22/5/057301
format	Article
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source	IOP Publishing Current Journals
subjects	Arrays Dipping Filled plastics Finite difference method Mathematical analysis Miniaturization Optical switching Plasmons Slits SPP模式光纤传输时域有限差分法狭缝酒吧金属条阵列
title	Effects of a bar on optical transmission through Z-shaped metallic slit arrays
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