Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7632
Title: The focusing effect of graded index photonic crystals
Authors: Kurt, Hamza
Çolak, E.
Çakmak, O.
Çağlayan, H.
Özbay, Ekmel
Keywords: [No Keywords]
Issue Date: 2008
Publisher: Amer Inst Physics
Abstract: We describe an approach to implement graded index (GRIN) structures using two- dimensional photonic crystals (PCs). The lattice spacing along the transverse direction to propagation is altered and we show, both theoretically and experimentally, that such a spatial perturbation is an effective way to obtain GRIN PC. The response of the structure to spatially wide incident beams is investigated and strong focusing behavior is observed. The large spot size conversion ratio can be attainable and is mainly limited by the finite size of the structure. The designed GRIN PC shows promise for use in optical systems that require compact and powerful focusing elements compared to the traditional bulky lenses. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3009965]
URI: https://doi.org/10.1063/1.3009965
https://hdl.handle.net/20.500.11851/7632
ISSN: 0003-6951
1077-3118
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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