Mathematics / Matematik

Permanent URI for this collectionhttps://hdl.handle.net/11147/8

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End date: 2019Department: search.filters.department.İzmir Institute of Technology. Physics

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  • Conference Object
    Can Cpt Be Violated Through Extended Time Reversal?
    (World Scientific Publishing, 2001) Erdem, Recai; Ufuktepe, Ünal
    We consider the implications of the extension of time reversal through Wigner types and group extensions. We clarify its physical content and apply the results in a toy model. Finally we point out the possibility of violation of CPT in this framework.
  • Article
    Citation - WoS: 1
    Citation - Scopus: 1
    Fully Three-Dimensional Analysis of a Photonic Crystal Assisted Silicon on Insulator Waveguide Bend
    (World Scientific Publishing, 2018) Eti, Neslihan; Çetin, Zebih; Sözüer, Hüseyin Sami
    A detailed numerical study of low-loss silicon on insulator (SOI) waveguide bend is presented using the fully three-dimensional (3D) finite-difference time-domain (FDTD) method. The geometrical parameters are optimized to minimize the bending loss over a range of frequencies. Transmission results for the conventional single bend and photonic crystal assisted SOI waveguide bend are compared. Calculations are performed for the transmission values of TE-like modes where the electric field is strongly transverse to the direction of propagation. The best obtained transmission is over 95% for TE-like modes.