Generation and polarization analysis of vector perfect optical vortex

Tian, Xinyi; Huang, Haofeng; Geng, Di; Wang, Yurong; Ma, Kai; Guo, Hao; Ma, Aning

doi:10.1007/s12596-023-01161-6

Cited by 2 publications

(1 citation statement)

References 45 publications

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“…Here, the BG vortex beam is usually created by a computer-controlled liquid-crystal spatial light modulator (SLM) [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] or digital micromirror device (DMD) [35], a special designed hybrid phase plate [36], a transparent variable diffractive spiral axicon based on a single liquid-crystal cell [37], polymer-based phase plate [38], metasurface [39], Pancharatnam-Berry phase element [40], axicon [41][42][43], or diffraction of the BG vortex beam by using curved fork grating [44], and so on. In addition, the PVB can be directly generated by schemes including a computer-generated hologram (CGH) displayed on the reflective phase SLM [45][46][47][48] or the DMD [49,50], a radial phase shift spiral zone plate [51,52], a planar Pancharatnam-Berry (PB) phase element [53], or metasurfaces [54][55][56][57][58][59][60][61][62], etc. Recently, the ...…”

Section: Introductionmentioning

confidence: 99%

Generation of Perfect Vortex Beams with Complete Control over the Ring Radius and Ring Width

Tao,

Liang,

Zhang

et al. 2023

Photonics

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We have experimentally created perfect vortex beams (PVBs) by Fourier transformation of Bessel–Gaussian vortex beams, which are generated by modulating the fundamental Gaussian beam with the spiral phase plates and the axicons, respectively. Although the method has been used many times by other authors, as far as we know, few people pay attention to the quantitative relationship between the control parameters of the PVB and ring width. The effects of the waist radius of the fundamental Gaussian beam wg, base angle of the axicon γ, and focal length of the lens f on the spot parameters (ring radius ρ, and ring half-width Δ) of PVB are systematically studied. The beam pattern of the generated Bessel–Gaussian beam for different propagation distances behind the axicon and the fundamental Gaussian beam wg is presented. We showed experimentally that the ring radius ρ increases linearly with the increase of the base angle γ and focal length f, while the ring half-width Δ decreases with the increase of the fundamental beam waist radius wg, and increases with enlarging the focal length f. We confirmed the topological charge (TC) of the PVB by the interferogram between the PVB and the reference fundamental Gaussian beam. We also studied experimentally that the size of the generated PVB in the Fourier plane is independent of the TCs. Our approach to generate the PVB has the advantages of high-power tolerance and high efficiency.

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Section: Introductionmentioning

confidence: 99%

Generation of Perfect Vortex Beams with Complete Control over the Ring Radius and Ring Width

Tao,

Liang,

Zhang

et al. 2023

Photonics

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Arbitrarily adjustable vector perfect optical vortices in free space

Shan,

Li,

Guo

et al. 2024

J. Opt. Soc. Am. B

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Vectorial perfect optical vortices (VPOVs) are widely used due to their unique polarization and phase distribution. Building a VPOV array in free space does not just need complex design and calculation, but it is also challenging to control the VPOV in the array. We provide a novel, to the best of our knowledge, approach for the extraction of polarization mode with an optical pen, which is capable of producing complex VPOV arrays in free space. The experimental results reveal that all of the parameters in the VPOV array can be modified separately, including amplitude, position, size, order, and number. This approach is simple and efficient, and it will find widespread application in particle trapping, optical tweezers, and optical communication.

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Generation and polarization analysis of vector perfect optical vortex

Cited by 2 publications

References 45 publications

Generation of Perfect Vortex Beams with Complete Control over the Ring Radius and Ring Width

Generation of Perfect Vortex Beams with Complete Control over the Ring Radius and Ring Width

Arbitrarily adjustable vector perfect optical vortices in free space

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