• DocumentCode
    3691435
  • Title

    Ultra-broadband terahertz perfect absorber

  • Author

    XiaoFei Zang;Cheng Shi;Yan Peng;YiMing Zhu

  • Author_Institution
    Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 JunGong Road, Shanghai 200093, China
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    1
  • Abstract
    We propose three kinds of ultra-broadband terahertz (THz) perfect absorbers by fabricating gratings on heavily boron-doped silicon substrate. By optimizing the doping density, the absorption bandwidths are 1 THz, 1.5 THz, and 2.0 THz, respectively, with absorbance above 95%. The fundamental principles are mainly attributed to the antireflection effects, the grating diffractions and the air gap-mode resonance.
  • Keywords
    "Diffraction gratings","Diffraction","Gratings","Yttrium","Absorption","Arrays","Bandwidth"
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
  • ISSN
    2162-2027
  • Electronic_ISBN
    2162-2035
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2015.7327589
  • Filename
    7327589
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3691435