Advertisement

Plasmonics

, Volume 14, Issue 2, pp 359–363 | Cite as

High Efficiency Tunable Graphene-Based Plasmonic Filter in the THz Frequency Range

  • Amin Moazami
  • Mahdieh HashemiEmail author
  • Najmeh Cheraghi Shirazi
Article
  • 107 Downloads

Abstract

A tunable plasmonic filter waveguide with indium antimonide activated by graphene layer configuration is proposed and numerically investigated. We demonstrate that the proposed tunable single-stub plasmonic filter using a thin layer of graphene can operate in the terahertz (THz) region as a notch filter. To investigate the transmission response of the structure, finite element method (FEM) calculations are utilized. The designed filter has precise minimum of zero at the notch frequency and also it improves the maximum transmitting light. Moreover, by applying the gate voltage between the graphene sheet and the InSb substrate, it can be seen that the central frequency of the filter is shifted by 32 GHz, and also the maximum of the transmission has been improved by 64% from 0.56 to 0.92 which shows less power loss. Furthermore, a band-stop plasmonic filter is proposed by increasing the number of stubs, which improves the bandwidth of the filter by 33% in compare to a single-stub structure. With such advantages, this structure is promising for future integrated plasmonic devices for applications such as communications, signal filtering, and switching.

Keywords

Tunable notch filter Tunable bandpass filter Graphene Therahertz Plasmonic 

References

  1. 1.
    Halir R, Bock PJ, Cheben P, Ortega-Moux A, Alonso-Ramos C, Schmid JH, Lapointe J, Xu D-X, Wangemert-Prez JG, Molina-Fernndez I, Janz S (2014) Waveguide sub-wavelength structures: a review of principles and applications. Laser Photon, Rev 9:25–49CrossRefGoogle Scholar
  2. 2.
    Sacher WD, Huang Y, Lo GQ, Poon JK (2015) Multilayer silicon nitride-on-silicon integrated photonic platforms and devices. J Light Technol 33:901–10CrossRefGoogle Scholar
  3. 3.
    Liu H, Ren G, Gao Y, Lian Y, Qi Y, Jian S (2015) Tunable subwavelength terahertz plasmon-induced transparency in the InSb slot waveguide side-coupled with two stub resonators. Appl Opt 54(13):3918–3924CrossRefGoogle Scholar
  4. 4.
    Soma M, et al. (2015) Optimum waveguide-core size for reducing device property distribution of Si-wire waveguide devices. Jap J Appl Phys 5(54):04DG03CrossRefGoogle Scholar
  5. 5.
    Kim JT, Choi S-Y (2011) Graphene-based plasmonic waveguides for photonic integrated circuits. Opt Express 19(24):24557–24562CrossRefGoogle Scholar
  6. 6.
    Fang X-Y, Yu X-X, Zheng H-M, Jin H-B, Wang L, Cao M-S (2015) Temperature-and thickness-dependent electrical conductivity of few-layer graphene and graphene nanosheets. Phys Lett A 379 (37):2245–2251CrossRefGoogle Scholar
  7. 7.
    Lao J, Tao J, Wang QJ, Huang XG (2014) Tunable graphene-based plasmonic waveguides: nano modulators and nano attenuators. Laser Photonics Rev 8(4):569–574CrossRefGoogle Scholar
  8. 8.
    Christensen J, Manjavacas A, Thongrattanasiri S, Koppens FHL, Javier Garcia de Abajo F (2012) Graphene plasmon waveguiding and hybridization in individual and paired nanoribbons. ACS Nano 6(1):431–440CrossRefGoogle Scholar
  9. 9.
    Bao Q, Loh KP (2012) Graphene photonics, plasmonics, and broadband optoelectronic devices. ACS Nano 6(5):3677–3694CrossRefGoogle Scholar
  10. 10.
    Kim J, Son H, Cho DJ, Geng B, Regan W, Shi S, Kim K, Zettl A, Shen Y-R, Wang F (2012) Electrical control of optical plasmon resonance with graphene. Nano Lett 12(11):5598–5602CrossRefGoogle Scholar
  11. 11.
    Emani NK, Chung T-F, Ni X, Kildishev AV, Chen Yong P, Boltasseva A (2012) Electrically tunable damping of plasmonic resonances with graphene. Nano Lett 12(10):5202–5206CrossRefGoogle Scholar
  12. 12.
    Rana F (2008) Graphene terahertz plasmon oscillators. IEEE Trans Nanotechnol 7(1):91–99CrossRefGoogle Scholar
  13. 13.
    Sanchez-Gil JA, Rivas JG (2006) Thermal switching of the scattering coefcients of terahertz surface plasmon polaritons impinging on a nite array of subwavelength grooves on semiconductor surfaces. Phys Rev B 73:205410CrossRefGoogle Scholar
  14. 14.
    Tao J, Hu B, He XY, Wang QJ (2013) Tunable subwavelength terahertz plasmonic stub waveguide filters. IEEE Trans Nanotechnol 12(6):1191–1197CrossRefGoogle Scholar
  15. 15.
    Falkovsky LA, Pershoguba S (2007) Optical far-infraredproperties of a graphene monolayer and multilayer. Phys Rev B76:153410CrossRefGoogle Scholar
  16. 16.
    Chen F, Yao* D, Liu Y (2014) Graphene–metal hybrid plasmonic switch. Appl Phys Express 7:082202CrossRefGoogle Scholar
  17. 17.
    Hibbins AP, Lockyear MJ, Sambles JR (2006) J Appl Phys 99:124903CrossRefGoogle Scholar
  18. 18.
    Hashemi M, Hosseini Farzad M, Mortensen NA, Xiao S (2013). Plasmonics 8:1059CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Electrical Engineering, Bushehr BranchIslamic Azad University (I.A.U)BushehrIran
  2. 2.Department of Physics, College of ScienceFasa UniversityFasaIran

Personalised recommendations