• DocumentCode
    3691601
  • Title

    Direct observation of terahertz wavefront converted by a metal hole array

  • Author

    Shintaro Hisatake;Hai Huy Nguyen Pham;Tadao Nagatsuma

  • Author_Institution
    Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Wavefront conversion by a metal hole array (MHA) has been experimentally observed via a visualization of the continuous-wave terahertz (THz) field. At the resonant frequency of the MHA, curved wavefront of the THz wave (125 GHz) emitted from a horn antenna has been converted to a plane wavefront. Near field visualization at the MHA surface (transmission side) revealed that the field re-emitted from the MHA oscillates in phase. We experimentally confirmed that the MHA acts as a planar THz wave collimator.
  • Keywords
    "Arrays","Horn antennas","Optical sensors","Metals","Visualization","Optical surface waves","Optical polarization"
  • 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.2015.7327817
  • Filename
    7327817
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3691601