Chinese Optics Letters, Volume. 23, Issue 10, 100002(2025)

Tunable in-plane photonic spin Hall effect for vortex structured light on a ReS2-graphene heterostructure

Yiyu Shi1, Zhiwei cui1、*, Junting He1, Wenqian Gong2, and Xinxing Zhou2,3,4、**
Author Affiliations
  • 1School of Physics, Xidian University, Xi’an 710071, China
  • 2Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
  • 3Key Laboratory of Physics and Devices in Post-Moore Era, College of Hunan Province, Changsha 410081, China
  • 4Institute of Interdisciplinary Studies, Hunan Normal University, Changsha 410081, China
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    Figures & Tables(6)
    (a) Schematic diagram of the in-plane spatial and angular shifts of PSHE for LGM. (b) Configuration of glass-air interface coated with ReS2-graphene HS. The relationships between angular shifts and deflections are Δ±x = zrϕ±x. Θ is the rotation angle between the incident light’s polarization plane and the Re-Re chain.
    Differences between in-plane spatial shifts δ±x and angular shifts Δ±x of LCP and RCP components with different rotation angles Θ, incident angles θi, and polarization angles β at the glass-air interface coated with ReS2-graphene HS or not, near the critical angle θc. (a), (b) δ+x−δ−x; (c), (d) Δ+x−Δ−x.
    Normalized field distribution |Erσ|2 of the reflected LCP and RCP components at the glass-air interface coated with ReS2-graphene HS for different rotation angles Θ near the critical angle θc, with propagation distance zr = 250 mm, incident angle θi = 28.22°, and polarization angle β = 78°. The dashed lines denote the xr = 0 and yr = 0, and the solid lines represent the yr = yc (yc is the horizontal position of the reflected beam centroid). (a)–(c) LCP and (d)–(f) RCP components.
    Impacts of topological charge l on the differences between in-plane spatial shifts δ±x and angular shifts Δ±x of LCP and RCP components with different incident angles θi and polarization angles β at the glass-air interface coated with ReS2-graphene HS for the case of rotation angle Θ = 0°, near the critical angle θc. (a), (b) δ+x−δ−x; (c), (d) Δ+x−Δ−x.
    Anomalous enhanced in-plane spatial shifts δ±x and angular shifts Δ±x of PSHE for LGM with different rotation angles Θ, incident angles θi, and polarization angles β at the glass-air interface coated with ReS2-graphene HS, far from the critical angle θc. (a)–(c) δ+x−δ−x; (d)–(f) Δ+x−Δ−x.
    (a), (c) Magnitude and (b), (d) phase of the terms k0a, k0b, and c in Eq. (6) with different incident angles θi and polarization angles β at the glass-air interface coated with ReS2-graphene HS, for LCP component σ = 1 and rotation angle Θ = 0°.
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    Yiyu Shi, Zhiwei cui, Junting He, Wenqian Gong, Xinxing Zhou, "Tunable in-plane photonic spin Hall effect for vortex structured light on a ReS2-graphene heterostructure," Chin. Opt. Lett. 23, 100002 (2025)

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    Paper Information

    Special Issue: SPECIAL ISSUE ON STRUCTURED LIGHT: FUNDAMENTALS AND APPLICATIONS

    Received: Apr. 23, 2025

    Accepted: May. 23, 2025

    Published Online: Sep. 8, 2025

    The Author Email: Zhiwei cui (zwcui@mail.xidian.edu.cn), Xinxing Zhou (xinxingzhou@hunnu.edu.cn)

    DOI:10.3788/COL202523.100002

    CSTR:32184.14.COL202523.100002

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