• DocumentCode
    822917
  • Title

    Concise frequency-dependent formulation for LOD-FDTD method using Z transforms

  • Author

    Shibayama, J. ; Takahashi, R. ; Nomura, A. ; Yamauchi, J. ; Nakano, H.

  • Author_Institution
    Fac. of Eng., Hosei Univ., Tokyo
  • Volume
    44
  • Issue
    16
  • fYear
    2008
  • Firstpage
    949
  • Lastpage
    950
  • Abstract
    The Z transform (ZT) theory is newly introduced into the unconditionally stable locally one-dimensional (LOD) FDTD method, in which a complicated treatment of convolution integrals is not required. Through analysis of a surface plasmon waveguide, the accuracy of the ZT-LOD-FDTD is found to be retained for a large time step allowed in an implicit scheme. The computational time is reduced to 25% of that of the traditional explicit ZT-FDTD, maintaining comparable accuracy.
  • Keywords
    Z transforms; finite difference time-domain analysis; optical waveguide theory; surface plasmons; Z transform theory; finite difference time domain method; frequency-dependent formulation; locally one-dimensional LOD-FDTD method; optical waveguide; surface plasmon waveguide;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20081415
  • Filename
    4586186
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=822917