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Broadband self-collimation in C2 symmetric photonic crystals

Show simple item record Gümüş, Melike Giden, İbrahim Halil Kurt, Hamza 2019-03-20T14:28:21Z 2019-03-20T14:28:21Z 2018-06-01
dc.identifier.citation Gumus, M., Giden, I. H., & Kurt, H. (2018). Broadband self-collimation in C2 symmetric photonic crystals. Optics letters, 43(11), 2555-2558. en_US
dc.description.abstract In this study, we report a low-symmetric photonic crystal (PhC) structure that exhibits high coupling efficiency in a broadband frequency range with a tilted self-collimating capability. First, the analytical approach is implemented as a starting point, and the ideal configuration is chosen for the self-collimation effect, which is analytically supported by group velocity dispersion and third-order-dispersion calculations. Then, numerical analyses in both time and frequency domains are performed to the ideal PhC design, which possesses a strong self-collimating characteristic, even at huge incident angles within the operating frequencies. Later, experimental measurements are conducted in microwaves, and the existing self-collimation property is still preserved at longer wavelengths in the millimeter scale. The microwave experiment as well as numerical analyses indicate that the designed PhC self-collimator allows overcoming possible misalignment problems at the PhC–source interface and enables a strong broadband beam channeling with a high transmission. en_US
dc.language.iso eng en_US
dc.publisher OSA - The Optical Society en_US
dc.relation.isversionof 10.1364/OL.43.002555 en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject Crystal structure en_US
dc.subject Group velocity dispersion en_US
dc.subject Numerical analysis en_US
dc.subject Super-collimation en_US
dc.subject Coupling technique en_US
dc.title Broadband self-collimation in C2 symmetric photonic crystals en_US
dc.type article en_US
dc.relation.journal Optics Letters en_US
dc.contributor.department TOBB ETU, Faculty of Engineering, Department of Material Science & Nanotechnology Engineering en_US
dc.identifier.volume 43 en_US
dc.identifier.issue 11 en_US
dc.identifier.startpage 2555 en_US
dc.identifier.endpage 2558 en_US
dc.identifier.wos WOS:000433963300034
dc.identifier.scopus 2-s2.0-85047984959
dc.contributor.tobbetuauthor Kurt, Hamza
dc.contributor.YOKid 200103
dc.identifier.doi 10.1364/OL.43.002555
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı

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