• Chinese Optics Letters
  • Vol. 23, Issue 6, 063603 (2025)
Tiegang Lin1, Ben Niu1, Furong Liu1, Xianglin Ye2..., Fan Fan2,* and Yufang Liu1,**|Show fewer author(s)
Author Affiliations
  • 1Henan Key Laboratory of Infrared Spectrum Measures and Applications, School of Physics, Henan Normal University, Xinxiang 453007, China
  • 2Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China
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    DOI: 10.3788/COL202523.063603 Cite this Article Set citation alerts
    Tiegang Lin, Ben Niu, Furong Liu, Xianglin Ye, Fan Fan, Yufang Liu, "Generation of arbitrary vector vortex beams on the hybrid-order Poincaré sphere from cholesteric liquid crystals," Chin. Opt. Lett. 23, 063603 (2025) Copy Citation Text show less

    Abstract

    In this Letter, by exploiting the spin-to-orbital angular momentum conversion capability and the polarization selectivity characteristic of cholesteric liquid crystal planar optical elements, an approach of combing two cholesteric liquid crystal layers with opposite handedness and independent surface patterns is proposed and investigated for generating arbitrary vector vortex beams on the hybrid-order Poincaré sphere. Furthermore, the intensity profiles and polarization distributions of typical vector vortex beams are experimentally demonstrated and analyzed, which shows good agreement with the theoretical prediction. The approach also suggests its advantages of operating light in the polychromatic spectral region of Bragg reflection. Our method presents a simple and direct way of phase and polarization manipulation, which also provides promising opportunities for developing advanced applications in structured light, high-resolution imaging, and information processing.
    |ψ=ψNl|Nl+ψSm|Sm,

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    S0l,m=|ψNl|2+|ψSm|2,

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    S1l,m=2|ψNl||ψSm|cosΦ,

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    S2l,m=2|ψNl||ψSm|sinΦ,

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    S3l,m=|ψNl|2|ψSm|2,

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    S1=I(0°,0°)I(90°,90°)I(0°,0°)+I(90°,90°),

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    S2=I(45°,45°)I(135°,135°)I(45°,45°)+I(135°,135°),

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    S3=I(45°,0°)I(45°,0°)I(45°,0°)+I(45°,0°),

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    Tiegang Lin, Ben Niu, Furong Liu, Xianglin Ye, Fan Fan, Yufang Liu, "Generation of arbitrary vector vortex beams on the hybrid-order Poincaré sphere from cholesteric liquid crystals," Chin. Opt. Lett. 23, 063603 (2025)
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