Band Structure Engineering in 2D Photonic Crystal Waveguide with Rhombic Cross-Section Elements | Zendy

Abdolrasoul Gharaati | Zendy; sayed hasan zahraei | Zendy

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Band Structure Engineering in 2D Photonic Crystal Waveguide with Rhombic Cross-Section Elements

Author(s) -

Abdolrasoul Gharaati,

sayed hasan zahraei

Publication year - 2014

Publication title -

advances in optical technologies

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.124

H-Index - 25

eISSN - 1687-6407

pISSN - 1687-6393

DOI - 10.1155/2014/780142

Subject(s) - photonic crystal , polarizer , elongation , optics , plane wave expansion method , materials science , plane wave expansion , cross section (physics) , electronic band structure , band gap , dielectric , optoelectronics , condensed matter physics , physics , birefringence , composite material , quantum mechanics , ultimate tensile strength

Two-dimensional photonic crystal (2D PhC) waveguides with square lattice composed of dielectric rhombic cross-section elements in air background, by using plane wave expansion (PWE) method, are investigated. In order to study the change of photonic band gap (PBG) by changing of elongation of elements, the band structure of the used structure is plotted. We observe that the size of the PBG changes by variation of elongation of elements, but there is no any change in the magnitude of defect modes. However, the used structure does not have any TE defect modes but it has TM defect mode for any angle of elongation. So, the used structure can be used as optical polarizer

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