Effect of the elliptic rods orientations on the asymmetric light transmission in photonic crystals
AffiliationEl-Manar University, Tunisia
University of Bedfordshire
European University of Lefke, Turkey
Kwame Nkrumah University of Science and Technology, Ghana
two-dimensional square photonic crystal
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AbstractIn this work, we report a novel design of a photonic crystal utilizing elliptic rods. The two-dimensional (2D) photonic crystal consists of an asymmetric distribution of unit cells to ensure the one-way transmission of light. Analysis performed indicated that the orientation of the ellipse along the major and minor axis has an influence on the shift of the transmission. In particular, this results in shift of the transmission towards high frequencies and subsequent oscillation of its magnitude. The peak of the transmission band was also found to be strongly influenced by the orientation angle, θ. It has been demonstrated that the strong asymmetric propagation properties of the proposed photonic crystal structure enables the switching of incident light from one direction to another. The proposed structure may be applied as a building block to integrated photonics applications.
CitationSoltani A, Ouerghi F, AbdelMalek F, Haxha S, Ademgil H, Akowuah E (2017) 'Effect of the elliptic rods orientations on the asymmetric light transmission in photonic crystals', Optics Communications, 392, pp.147-152.