A Nanoplasmonic High-PassWavelength Filter Based on a Metal-Insulator-Metal Circuitous Waveguide

被引:26
作者
Zhu, Jia Hu [1 ]
Wang, Qi Jie [2 ,3 ]
Shum, Ping [2 ]
Huang, Xu Guang [1 ]
机构
[1] S China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangdong Higher Educ Inst, Key Lab Photon Informat Technol, Guangzhou 510006, Guangdong, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[3] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 639798, Singapore
基金
中国国家自然科学基金;
关键词
Integrated optics devices; metal-insulator-metal waveguide; surface plasmons; wavelength filtering; ELECTROMAGNETIC ENERGY-TRANSPORT; PLASMON POLARITON PROPAGATION; NANOWIRES; LIGHT;
D O I
10.1109/TNANO.2011.2136385
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A nanoplasmonic high-pass wavelength filter consisting of two straight metal-insulator-metal waveguides side-connected with a dielectric islet to form a circuitous waveguide is proposed and simulated numerically by using the finite difference time domain method. The simulation demonstrates that the plasmonic filter is characterized as a high-pass wavelength filter in the transmission spectrum. The cutoff wavelength increases with the increase of the length or the decrease of the width of the dielectric islet. Explanation of the high-pass filtering effect is given with a theoretical expression of the cutoff wavelength.
引用
收藏
页码:1357 / 1361
页数:5
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