Browsing by Author "Sözüer, Hüseyin Sami"
Now showing items 1-8 of 8
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Frequency splitting with two dimensional triangular photonic crystal
Erol, Adem Enes (Izmir Institute of Technology, 2009)Photonic crystals are periodically arranged dielectric materials. If the periodicity is broken along a line, i.e. a line defect is formed, then the line defect can behave like a waveguide. In this thesis, a frequency ... -
High transmission through a 90° bend in a polarization-independent single-mode photonic crystal waveguide
Erol, Adem Enes; Sözüer, Hüseyin Sami (Optical Society of America, 2015-12)We propose a polarization-independent single-mode waveguide, using a two-dimensional square photonic crystal with a complete band gap. The waveguide is tuned such that both TE and TM modes have the same group velocity and ... -
Improving coupling efficiency by using adiabtic transition in photonic crystal waveguides
Çetin, Zebih (Izmir Institute of Technology, 2012)Photonic crystal waveguides (PhCWGs), designed by removing one or more slabs from a perfectly periodic structures, are possibly future optoelectronic circuit elements that promising a good ability to confine light in a ... -
Mathematical modelling of light propagation in pohotonic crystal waveguides
Eti, Neslihan (Izmir Institute of Technology, 2014)Photonic crystals are artificially engineered materials where the dielectric constant varies periodically. A photonic band gap can be created by scattering at the dielectric interfaces, which forbids propagation of light ... -
One dimensional photonic crystal waveguide
Sevim, Koray (Izmir Institute of Technology, 2004)This thesis deals with the implementation of a numerical method to describe how electromagnetic waves propagate through a one-dimensional photonic crystal waveguide. The one-dimensional photonic crystal waveguide is a ... -
Photonic crystal assisted 90° waveguide bend
Sözüer, Hüseyin Sami; Şengün, Hediye Duygu (World Scientific Publishing, 2011-06)The 90° waveguide bend is an important component of optical circuit applications. We propose several models for such a bend, some of them assisted by a two-dimensional photonic crystal with a bandgap in the desired range ... -
Photonic crystal assisted L-shaped waveguide bend
Şengün, Hediye Duygu (Izmir Institute of Technology, 2009)Photonic crystals are periodic dielectric structures. This periodicity allow us to manipulate light in ways that have not been possible before. As a result, photonic crystal waveguide components play a significant role in ... -
Robustness of one-dimensional photonic band gaps under random variations of geometrical parameters
Sözüer, Hüseyin Sami; Sevim, Koray (American Physical Society, 2005-11)The supercell method is used to study the variation of the photonic bandgaps in one-dimensional photonic crystals under random perturbations to thicknesses of the layers. The results of both plane wave and analytical band ...
