Abstract
Based on the binary phase Fresnel zone plate (FZP), a polarization-independent metasurface lens that is able to focus incident light with any polarization state, including circular, linear, and elliptical polarizations, has been proposed and investigated. We demonstrate that the metasurface lens consisting of metal subwavelength slits can operate in a wide bandwidth in the visible range, and has a higher focusing efficiency than that of an amplitude FZP lens without phase modulation. A multi-focus FZP metasurface lens has also been designed and investigated. The proposed lens can provide potential applications in integrated nanophotonic devices without polarization limitations.
Highlights
To scale-down the size and volume of traditional optical elements, a metasurface is proposed and has been extensively studied by researchers [1,2,3,4]
A metasurface constructed with various meta-atoms such as V-shaped [4], rod-shaped [9,29,30,31], and C-shaped resonators [10,12] has been used to design metasurface lenses, though many kinds of metalenses have been successfully realized for micro/nano-photonic applications based on the metasurface
Unlike traditional optical lenses, most of the metasurface lenses are sensitive to the polarization of the illumination wave [4,9,29,30,32,33]
Summary
To scale-down the size and volume of traditional optical elements, a metasurface is proposed and has been extensively studied by researchers [1,2,3,4]. The performance of the metasurface lens depends heavily on the polarization of incident light in most cases. We have proposed a metasurface lens that is capable of eliminating the dependence of the focusing property on the polarization of incident light.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
