Effect of the elliptic rods orientations on the asymmetric light transmission in photonic crystals
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Affiliation
El-Manar University, TunisiaUniversity of Bedfordshire
European University of Lefke, Turkey
Kwame Nkrumah University of Science and Technology, Ghana
Issue Date
2017-02-03Subjects
FDTD methodunidirectional light
two-dimensional square photonic crystal
asymmetric distribution
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Show full item recordAbstract
In 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.Citation
Soltani 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.Publisher
ElsevierJournal
Optics CommunicationsAdditional Links
https://www.sciencedirect.com/science/article/pii/S0030401817300731Type
ArticleLanguage
enISSN
0030-4018ae974a485f413a2113503eed53cd6c53
10.1016/j.optcom.2017.01.057