A narrow-band subwavelength plasmonic waveguide filter with asymmetrical multiple-teeth-shaped structure.
A narrow-band subwavelength plasmonic waveguide filter with asymmetrical multiple-teeth-shaped structure.
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DOI：
10.1364/oe.17.013989
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发表时间：
2009-08
期刊：
影响因子：
3.8
通讯作者：
Jin Tao;X. Huang;Xianshi Lin;Qin Zhang;X. Jin
中科院分区：
文献类型：
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作者：
Jin Tao;X. Huang;Xianshi Lin;Qin Zhang;X. Jin
分析了多齿形等离子体滤波器的特性。作为该结构的推广，提出了一种非对称多齿形结构，并采用完全匹配层吸收边界条件的时域有限差分法对其进行了数值模拟。结果表明，这种非对称结构可以实现窄带滤波器的功能。通带中心波长随d（1）和d（2）的同时增大而线性增大。
Characteristics of a multiple-teeth-shaped plasmonic filter are analyzed. As an extension of this structure, an asymmetrical multiple-teeth-shaped structure is proposed and numerically simulated by using the finite difference time domain method with perfectly matched layer absorbing boundary condition. It is found that the asymmetrical structure can realize the function of a narrow-passband filter. The central wavelength of the passband linearly increases with the simultaneous increasing of d(1) and d(2).