Photonics Research, Volume. 6, Issue 6, 511(2018)

Photonic spin Hall effect on the surface of anisotropic two-dimensional atomic crystals

Wenshuai Zhang1, Weijie Wu1, Shizhen Chen1, Jin Zhang1, Xiaohui Ling1, Weixing Shu2, Hailu Luo1,2、*, and Shuangchun Wen2
Author Affiliations
  • 1Laboratory for Spin Photonics, School of Physics and Electronics, Hunan University, Changsha 410082, China
  • 2Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
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    Figures & Tables(5)
    Schematic illustration of the wave reflection at a surface of black phosphorus in a Cartesian coordinate system. A black phosphorus sheet is placed on the top of a homogeneous and isotropic substrate. The photonic SHE occurs on the reflecting surface and exhibits in-plane and transverse spin Hall shifts.
    Real and imaginary parts of the conductivity of the 2D atomic crystal as a function of frequency. Parameters are set as η=0.01 eV, ωx=1 eV, and ωy=0.35 eV. The frequency of interband electron transitions is present at ωy=0.35 eV. (a), (b) The optical axis is chosen as ϕ=0°. (c), (d) The optical axis is chosen as ϕ=30°. The doping concentration of the 2D atomic crystal is n=5×1013 cm−2.
    (a) Real and (b) imaginary parts of the conductivity of the 2D atomic crystal as a function of optical axis angles. The parameters of the 2D atomic crystal are n=5×1013 cm−2 and ω=0.1 eV. (c) Real and (d) imaginary parts of the conductivity as a function of doping concentration. The optical axis is chosen as ϕ=30°. Other parameters are the same as in Fig. 2.
    (a) In-plane and (b) transverse spin-dependent shifts on the surface of anisotropic 2D atomic crystal as a function of optical axis angle and frequency. The incident light impinges on the substrate at θi=60°, the refractive index of the substrate is assumed as 2, and the doping concentration is n=10×1013 cm−2.
    (a) In-plane and (b) transverse spin Hall shifts on the anisotropic 2D atomic crystal as a function of the optical axis angle and doping concentration. The frequency ω=0.1 eV. Other parameters are the same as in Fig. 4.
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    Wenshuai Zhang, Weijie Wu, Shizhen Chen, Jin Zhang, Xiaohui Ling, Weixing Shu, Hailu Luo, Shuangchun Wen, "Photonic spin Hall effect on the surface of anisotropic two-dimensional atomic crystals," Photonics Res. 6, 511 (2018)

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    Paper Information

    Category: Optics at Surfaces

    Received: Dec. 28, 2017

    Accepted: Mar. 18, 2018

    Published Online: Jul. 2, 2018

    The Author Email: Hailu Luo (hailuluo@hnu.edu.cn)

    DOI:10.1364/PRJ.6.000511

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