Please use this identifier to cite or link to this item: 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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