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Search for: [Abstrakt = "In this paper, we optimize the geometries of some 2D photonic crystal waveguides to increase their single\-mode bandwidths for TE and TM polarizations. Using the Plane Wave Expansion \(PWE\) method combined with optimization algorithm, we find the local maxima as well as the global maximum. A photonic crystal waveguide geometry is proposed which has a single\-mode normalized bandwidth of 41% for TM polarization. This value is about 7% greater than the corresponding value for the commonly used square lattice of dielectric rods in which a row is removed. Also, some waveguide geometries are proposed for TE polarization and it is shown that one of these geometries can provide a single\-mode bandwidth of 39%, while the widest bandwidth reported so far for the TE case is 21%. The dielectric material used for both cases is GaAs with a dielectric constant of 11.4."]

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Optica Applicata

Danaie, Mohammad Attari, Amir Reza Mirsalehi, Mir Mojtaba Naseh, Sasan Gaj, Miron. Redakcja Urbańczyk, Wacław. Redakcja

2008
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