Infrared and Laser Engineering, Volume. 49, Issue 9, 20201033(2020)

Development of metasurfaces for wavefront modulation in terahertz waveband

Jingwen He1... Tao Dong1 and Yan Zhang2,* |Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of Space-Ground Integrated Information Technology, Beijing Institute of Satellite Information Engineering, Beijing 100095, China
  • 2Beijing Advanced Innovation Center for Imaging Theory and Technology, Beijing Key Lab of Metamaterials and Devices, Department of Physics, Capital Normal University, Beijing 100048, China
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    Figures & Tables(6)
    Electromagnetic interaction mechanisms of three kinds of typical optical antennas. (a) Optical antenna unit based on PB phase; (b) Optical antenna unit based on LSPR; (c) Optical antenna unit based on Mie resonance
    Typical terahertz (THz) metasurfaces for wavefront modulation. (a) THz metasurface lens and verification of its focusing and imaging performance; (b) THz meta-hologram and the alphabets reconstructed at different positions; (c) THz metasurfaces for generating the vortex beams with different topologies and the phase distribution of the generated vortex fields; (d) THz coded metasurfaces and the experiment results of beam deflection
    Multifunctional metasurfaces for wavefront modulation in the THz waveband. (a) Schematic diagram of a wavelength multiplexed metasurface and the images obtained at 0.5 THz and 0.63 THz, respectively; (b) Polarization multiplexed metasurface lens based on PB phase and the experimental results of the focusing results for incident wave with different polarizations; (c) Polarization multiplexed all-dielectric metasurface based on Mie resonance for vortex/Bessel beam generation and the measured intensity distributions under x- and y-polarized incidence, respectively
    Temperature-controlled metasurface device for THz wavefront modulation. (a) Tunable THz metasurface lens consisting of metasurface lens with V-shaped antennas and a VO2 film; (b) Tunable metasurface lens and ring-Airy beam generator with C-shaped slots formed by etching the VO2 film directly; (c) Tunable THz meta-hologram consisting of C-shaped gold antenna with VO2
    (a) Schematic of the photo-induced THz plasmonic metasurface for wavefront modulation; (b) Design of photo-induced antennas based on PB phase; (c) Meta-hologram projected on the silicon wafer captured by charge-coupled device (CCD)
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    Jingwen He, Tao Dong, Yan Zhang. Development of metasurfaces for wavefront modulation in terahertz waveband[J]. Infrared and Laser Engineering, 2020, 49(9): 20201033

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    Paper Information

    Category: Special issue-Metasurface empowered manipulation of wavefront

    Received: Jun. 10, 2020

    Accepted: --

    Published Online: Jan. 4, 2021

    The Author Email: Zhang Yan (yzhang@cnu.edu.cn)

    DOI:10.3788/IRLA20201033

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