High efficiency of graded index photonic crystal as an input coupler

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/6810

Title:	High efficiency of graded index photonic crystal as an input coupler
Authors:	Çakmak, Atilla Özgür Çolak, Evrim Çağlayan, Humeyra Kurt, Hamza Özbay, Ekmel
Keywords:	finite difference time-domain analysis gradient index optics optical couplers optical materials photonic crystals
Publisher:	Amer Inst Physics
Abstract:	A graded index photonic crystal (GRIN PC) configuration was placed at the input side of a photonic crystal waveguide (PCW) in order to efficiently couple the light waves into the waveguide. We compared the transmission efficiencies of light in the absence and presence of the GRIN PC structure. We report a significant improvement in coupling when the GRIN PC is incorporated with the PCW. The intensity profiles were obtained by carrying out the experiments at microwave frequencies. Finite difference time domain based simulations were found to be in good agreement with our experimental results.
URI:	https://doi.org/10.1063/1.3130403 https://hdl.handle.net/20.500.11851/6810
ISSN:	0021-8979 1089-7550
Appears in Collections:	Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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