A Dual-Passband Frequency Selective Surface With High Angular Stability and Polarization Insensitivity [PDF]
MicromachinesIn this paper, a dual-passband frequency selective surface (FSS) with high angular stability and polarization insensitivity is proposed. The unit structure consists of a circular aperture, two annular apertures and four cross apertures.
Zheng Xiang, Peng Ren, Yi Li
exaly +6 more sources
A Switchable Ultra-Wideband Metamaterial Absorber with Polarization-Insensitivity and Wide-incident Angle at THz Band [PDF]
Frontiers in Materials, 2021 In this paper, we report a switchable ultra-wideband metamaterial absorber with polarization-insensitivity and wide-incident angle at THz band which is composed of VO2 disk, polyimide dielectric substrate, and gold ground plane. The results show that the
Liansheng Wang +4 more
doaj +3 more sources
Polarization insensitivity characterization of dual-band perfect metamaterial absorber for K band sensing applications. [PDF]
Sci Rep, 2021 Polarization insensitive metamaterial absorbers (MA) are currently very attractive due to their unique absorption properties at different polarization angles.
Hakim ML +4 more
europepmc +2 more sources
Frontiers in Physics, 2020 A graphene-based tunable wideband metamaterial absorber with polarization insensitivity and wide incident angle is presented in this paper. The results show that the absorption is over 90% from 5 to 8 GHz when the Fermi level of graphene is 0.5 eV, and ...
Liansheng Wang +4 more
doaj +2 more sources
Near-absolute polarization insensitivity in grapheme based ultra-narrowband perfect visible light absorber. [PDF]
Sci Rep, 2018 Strong light-graphene interaction is essential for the integration of graphene to nanophotonic and optoelectronic devices. The plasmonic response of graphene in terahertz and mid-infrared regions enhances this interaction, and other resonance mechanisms ...
Yildirim DU, Ghobadi A, Ozbay E.
europepmc +2 more sources
Nonmetallic Broadband Visible-Light Absorbers With Polarization and Incident Angle Insensitivity
IEEE Photonics Journal, 2020 We have proposed and theoretically analyzed nonmetallic broadband visible-light absorbers based on alternating SiO2/InAs thin films on SiO2 substrate.
Zejie Yu, Xiankai Sun
exaly +3 more sources
IEEE Photonics Journal, 2019 An ultrabroadband metamaterial absorber structure based on a periodic array of metallic-dielectric multilayered conical frustums is numerically investigated and proposed.
Nguyen Thi Quynh Hoa +4 more
doaj +2 more sources
Broadband Polarization-Insensitive Tunable Terahertz Metamaterial Absorber Based on an Asymmetric Graphene Structure [PDF]
NanomaterialsA graphene-based tunable broad-band terahertz (THz) metamaterial absorber is presented, exhibiting strong and stable absorption across a wide frequency range.
Ahmed Ali +6 more
doaj +2 more sources
Broad Perfect Transparent Band in Asymmetric Photonic Crystals with Graded-Index Films [PDF]
MicromachinesPhotonic crystals possessing mirror symmetry have been widely investigated to obtain perfect transmission properties. However, complex asymmetric nanostructures can achieve perfect transmission via phase-matching, while one-dimensional photonic crystals ...
Chenming Zhang +6 more
doaj +2 more sources
Design and Simulation of a High-Efficiency Tunable Terahertz Absorber Based on Patterned Graphene [PDF]
NanomaterialsThe rapid expansion of terahertz (THz) communication, nondestructive testing and biosensing puts forward urgent demands for absorbers with switchable working bandwidth, yet parts of existing graphene-based absorbers adopt costly noble-metal backplanes ...
Shuai Wang +4 more
doaj +2 more sources