中国物理B ›› 2018, Vol. 27 ›› Issue (8): 84212-084212.doi: 10.1088/1674-1056/27/8/084212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

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

Somayyeh Asgari, Hossein Rajabloo, Nosrat Granpayeh, Homayoon Oraizi   

  1. 1 Center of Excellence in Electromagnetics, Optical Communication Laboratory, Faculty of Electrical Engineering, K N Toosi University of Technology, Tehran, Iran;
    2 Young Researchers and Elite Club, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran;
    3 Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
  • 收稿日期:2018-02-07 修回日期:2018-04-10 出版日期:2018-08-05 发布日期:2018-08-05
  • 通讯作者: Nosrat Granpayeh E-mail:granpayeh@kntu.ac.ir

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

Somayyeh Asgari1, Hossein Rajabloo2, Nosrat Granpayeh1, Homayoon Oraizi3   

  1. 1 Center of Excellence in Electromagnetics, Optical Communication Laboratory, Faculty of Electrical Engineering, K N Toosi University of Technology, Tehran, Iran;
    2 Young Researchers and Elite Club, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran;
    3 Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
  • Received:2018-02-07 Revised:2018-04-10 Online:2018-08-05 Published:2018-08-05
  • Contact: Nosrat Granpayeh E-mail:granpayeh@kntu.ac.ir

摘要: We have designed and proposed the edge modes supported by graphene ribbons and the planar band-pass filter consisting 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

Abstract: We have designed and proposed the edge modes supported by graphene ribbons and the planar band-pass filter consisting 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.

Key words: band-pass filter, graphene, surface plasmons, power splitter

中图分类号:  (Filters, zone plates, and polarizers)

  • 42.79.Ci
61.48.Gh (Structure of graphene) 71.45.Gm (Exchange, correlation, dielectric and magnetic response functions, plasmons) 42.79.Fm (Reflectors, beam splitters, and deflectors)