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https://hdl.handle.net/20.500.11851/769
Title: | Polarization-Insensitive Beam Splitters Using All-Dielectric Phase Gradient Metasurfaces at Visible Wavelengths | Authors: | Özer, Ahmet Yılmaz, N. Koçer, H. Kurt, Hamza |
Keywords: | Metamaterials Plasmons Gradient metasurface Optical vortex generation High-efficiency Photonic crystals Flat lenses Discontinuıties Reflection Conversion Light Gratings |
Publisher: | OSA - The Optical Society | Source: | Ozer, A., Yilmaz, N., Kocer, H., & Kurt, H. (2018). Polarization-insensitive beam splitters using all-dielectric phase gradient metasurfaces at visible wavelengths. Optics letters, 43(18), 4350-4353. | Abstract: | Beam splitters play important roles in several optical applications, such as interferometers, spectroscopy, and optical communications. In this study, we propose and numerically examine polarization-insensitive beam splitters utilizing two-step phase gradient all-dielectric metasurfaces in the visible spectrum. The metasurface is made of periodically arranged binary unit cells, and phase difference between neighboring unit cells on the surface is 180 deg. The metasurface is shown to have a special phase gradient whose sign changes periodically. The angle of the split beams on both sides and the corresponding total transmission value at 532 nm wavelength are found to be 46.8° and 0.90, respectively. | URI: | https://doi.org/10.1364/OL.43.004350 https://hdl.handle.net/20.500.11851/769 |
Appears in Collections: | Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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