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首页> 外文期刊>Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic >A multifunction filter based on plasmonic waveguide with double-nanodisk-shaped resonators
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A multifunction filter based on plasmonic waveguide with double-nanodisk-shaped resonators

机译：基于带有双纳米盘形谐振器的等离子波导管的多功能滤波器

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摘要

Characteristics of a plasmonic filter with double-nanodisk-shaped resonators are analyzed and demonstrated numerically by the finite difference time domain (FDTD) method. It is found that there are several types of modes in the transmission spectrums, and these modes can be easily adjusted by changing the radiuses of the nanodisk-shaped resonators or the coupling distances between the resonators and the waveguides. Furthermore, these modes are sensitive to variation of the refraction index of the material under sensing, which provides a potential way to realize multi-parameter sensing with high sensitivity and high figure of merit (FOM) in nanoscale. As an extension of this structure, a four-port wavelength demultiplexer is designed, which can separate resonant modes and be realized single band transmission of each channel. The proposed structure could be utilized to develop multifunction device for large-scale photonic integration. 2016 Elsevier GmbH. All rights reserved.
机译：通过有限差分时域（FDTD）方法对具有双纳米盘形谐振器的等离子滤波器的特性进行了分析和数值模拟。已经发现，在传输光谱中存在几种类型的模式，并且可以通过改变纳米盘形谐振器的半径或谐振器与波导之间的耦合距离来容易地调节这些模式。此外，这些模式对被感测材料的折射率变化敏感，这为在纳米级实现具有高灵敏度和高品质因数（FOM）的多参数感测提供了潜在的途径。作为该结构的扩展，设计了一个四端口波长多路分解器，它可以分离谐振模式并实现每个通道的单频带传输。所提出的结构可用于开发用于大规模光子集成的多功能设备。 2016 Elsevier GmbH。版权所有。

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