• DocumentCode
    2676415
  • Title

    Experimental confirmation of Bethe´s diffraction theory

  • Author

    Kwon, O. ; Pak, S.H. ; So, J.K. ; Baik, I.K. ; Min, S.H. ; Park, Gun-Sik

  • Author_Institution
    Dept. of Phys. & Astron., Center for THz-Bio Applic. Syst., Seoul, South Korea
  • fYear
    2011
  • fDate
    2-7 Oct. 2011
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Utilizing high power CW THz Coupled Cavity BWO (CCBWO), over 108 of Signal to Noise Ratio (SNR) is obtained. Extreme subwavelength apertures are perforated on ultrathin aluminum films by micro-photo-etching and It is proved that the transmittance normalized to hole size is proportional to 4th power of the ratio between hole size to incident wavelength for a<;<;λ as Bethe´s expectation.
  • Keywords
    backward wave oscillators; electromagnetic wave diffraction; etching; terahertz waves; diffraction theory; extreme subwavelength apertures; high power CW THz coupled cavity BWO; microphoto-etching; ultrathin aluminum films; Apertures; Detectors; Films; Magnetic field measurement; Numerical models; Optimized production technology; Signal to noise ratio;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
  • Conference_Location
    Houston, TX
  • ISSN
    2162-2027
  • Print_ISBN
    978-1-4577-0510-6
  • Electronic_ISBN
    2162-2027
  • Type

    conf

  • DOI
    10.1109/irmmw-THz.2011.6105123
  • Filename
    6105123
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2676415