Results 11 to 20 of about 5,194 (200)
Polarization-Insensitive Silicon Photonic Variable Optical Attenuator
PhotonicsWe propose and demonstrate a polarization-insensitive silicon photonic variable optical attenuator. The designed device uses a two-dimensional apodized grating coupler as a surface-normal coupling interface, which has the advantages of low-cost fiber ...
Meixin Li +7 more
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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 +2 more sources
Photonics, 2021 A polarization-insensitive recirculating delayed self-heterodyne method (PI-RDSHM) is proposed and demonstrated for the precise measurement of sub-kilohertz laser linewidths. By a unique combination of Faraday rotator mirrors (FRMs) in an interferometer,
Jing Gao +8 more
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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
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Highly Transparent Broadband and Polarization-Insensitive Absorber Based on Metasurface
Applied Sciences, 2020 A highly transparent polarization-insensitive metamaterial absorber with wideband microwave absorption is presented. The broadband absorption (6.0~16.7 GHz, absorptance > 85%) is achieved using three patterned resistive metasurfaces.
Houdi Xiao +3 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
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 +1 more source
A centimeter-scale achromatic hybrid metalens with polarization-insensitivity in the visible
, 2022 Metalenses, featuring ultra-compactness and CMOS compatibility, are limited by the compromise between the diameter, numerical aperture, and working waveband.
Wen, Liqing +6 more
core +2 more sources
Nickel-Based High-Bandwidth Nanostructured Metamaterial Absorber for Visible and Infrared Spectrum
Nanomaterials, 2022 The efficient control of optical light at the nanoscale level attracts marvelous applications, including thermal imaging, energy harvesting, thermal photovoltaics, etc.
Rana Muhammad Hasan Bilal +5 more
doaj +1 more source
Polarization-insensitive tunable terahertz polarization rotator
Optics Express, 2019 A rotation-angle variable polarization rotator is proposed and demonstrated using an all-dielectric metasurface doublet. Such a transmissive device can conveniently rotate the polarization of incident light by any desired angles by mechanically changing the relative angle of the double metasurface layers regardless of the incident state of polarization.
Shaoxian Li +12 more
openaire +2 more sources