Tunable graphene-based mid-infrared band-pass planar filter and its application  

作　　者：Somayyeh Asgari Hossein Rajabloo Nosrat Granpayeh Homayoon Oraizi 

机构地区：[1]Center of Excellence in Electromagnetics, Optical Communication Laboratory, Faculty of Electrical Engineering,K N Toosi University of Technology [2]Young Researchers and Elite Club, Azadshahr Branch, Islamic Azad University [3]Department of Electrical Engineering, Iran University of Science and Technology

出　　处：《Chinese Physics B》2018年第8期290-296,共7页中国物理B（英文版）

摘　　要：We have designed and proposed the edge modes supported by graphene ribbons and the planar band-pass filter consist- ing of graphene ribbons coupled to a graphene ring resonator by using the finite-difference time-domain numerical method. Simulation results show that the edge modes improve the electromagnetic coupling between devices. This structure works as a novel, tunable mid-infrared band-pass filter. Our studies will benefit the fabrication of planar, ultra-compact nano-scale devices in the mid-infrared region. A power splitter consisting of two output ribbons that is useful in photonic integrated devices and circuits is also designed and simulated. These devices are useful for designing ultra-compact planar devices in photonic integrated circuits.We have designed and proposed the edge modes supported by graphene ribbons and the planar band-pass filter consist- ing of graphene ribbons coupled to a graphene ring resonator by using the finite-difference time-domain numerical method. Simulation results show that the edge modes improve the electromagnetic coupling between devices. This structure works as a novel, tunable mid-infrared band-pass filter. Our studies will benefit the fabrication of planar, ultra-compact nano-scale devices in the mid-infrared region. A power splitter consisting of two output ribbons that is useful in photonic integrated devices and circuits is also designed and simulated. These devices are useful for designing ultra-compact planar devices in photonic integrated circuits.

关 键 词：band-pass filter GRAPHENE surface plasmons power splitter 

分 类 号：O4[理学—物理]