Three-Airy autofocusing beams*

Zhang, Xiaohong; Wang, Fei-Li; Bai, Lu-Yang; Lou, Cibo; Liang, Yi

doi:10.1088/1674-1056/ab84d2

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…Consequently, efforts to optimize optical manipulation performance often involve com-bining optical vortices with autofocusing beams, resulting in various abruptly autofocusing vortex beams. [14][15][16][17][18][19] Recently, a novel wavepacket named as tornado waves (TOWs) has been introduced, demonstrating the capability of both angular and radial acceleration. [18,[20][21][22][23][24] This distinctive dual acceleration is achieved by combining two OAM ring-Airy or swallowtail beams with opposite signs, generating high-intensity lobes that follow a parabolic trajectory and exhibit significant angular acceleration.…”

Section: Introductionmentioning

confidence: 99%

Optical trapping capability of tornado circular Pearcey beams

Liu 刘,

Tang 唐,

Liu 刘

et al. 2024

Chinese Phys. B

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We systemically investigated optical trapping capability of a kind of Tornado waves on Rayleigh particles. Such tornado waves are named Tornado Circular Pearcey beams (TCPBs) and produced by combining two circular Pearcey beams with different radii. Our theoretical exploration delved into various aspects, including the propagation dynamics, energy flux, orbital angular momentum, trapping force, and torque characteristics of TCPBs. Our results reveal that the orbital angular momentum, trapping force, and torque of these beams can be finely tuned through the judicious manipulation of their topological charges (l 1 and l 2). Notably, we observed a precise control mechanism wherein the force diminishes with |l 1+l 2| and |l 1-l 2|, while the torque exhibits enhancement by decreasing solely with |l 1+l 2| or increasing with |l 1-l 2|. These results not only provide quantitative insights into the optical trapping performance of TCPBs but also serve as a valuable reference for the ongoing development of innovative photonic tools.

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Section: Introductionmentioning

confidence: 99%

Optical trapping capability of tornado circular Pearcey beams

Liu 刘,

Tang 唐,

Liu 刘

et al. 2024

Chinese Phys. B

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“…Generally, propagating light waves possess two distinct forms of angular momentum. [5][6][7][8] Firstly, light can carry spin angular momentum (SAM). SAM is inherent in light beams with elliptical polarization states and depends on the field vector rotations that take place at every point of the beam crosssection.…”

Section: Introductionmentioning

confidence: 99%

Multi-channel generation of vortex beams with controllable polarization states and orbital angular momentum

Lyu

Wang

2023

Chinese Phys. B

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Optical vortices with tunable polarization states and topological charges are widely investigated in various physical systems and practical devices for high-capacity optical communication. However, this kind of structured light beams are usually generated using several polarization and spatial phase devices, which decreases the configurability of optical systems. Here, we have designed a kind of polarized optical multi-vortices generator based on Stokes-Mueller formalism and cross-phase modulation. In our scheme, multi-channel generation of polarized vortex beams can be realized through a single optical element and a single-input Gaussian beam. The polarization states and orbital angular momentum of the generated light beams are all-optically controllable. Furthermore, the proposed polarized optical multi-vortices generator has also been demonstrated experimentally through one-step holographic recording in an azobenzene liquid-crystalline film and the experimental results agrees with theoretical analysis.

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“…[11][12][13][14][15][16][17] Until quite recently, study of accelerating beam is still an active topic, and the evolution dynamics of these beams in different medium have been reported in Refs. [18][19][20]. By applying the separation of variables method to the wave equation and the Helmholtz equation, [21] nonparaxial accelerating beams and Mathieu and Weber beams can be obtained, respectively.…”

Section: Introductionmentioning

confidence: 99%

Propagations of Fresnel diffraction accelerating beam in Schrödinger equation with nonlocal nonlinearity*

et al. 2021

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Accelerating beams have been the subject of extensive research in the last few decades because of their self‐acceleration and diffraction‐free propagation over several Rayleigh lengths. Here, we investigate the propagation dynamics of a Fresnel diffraction beam using the nonlocal nonlinear Schrödinger equation (NNLSE). When a nonlocal nonlinearity is introduced into the linear Schrödinger equation without invoking an external potential, the evolution behaviors of incident Fresnel diffraction beams are modulated regularly, and certain novel phenomena are observed. We show through numerical calculations, under varying degrees of nonlocality, that nonlocality significantly affects the evolution of Fresnel diffraction beams. Further, we briefly discuss the two‐dimensional case as the equivalent of the product of two one‐dimensional cases. At a critical point, the Airy‐like intensity profile oscillates between the first and third quadrants, and the process repeats during propagation to yield an unusual oscillation. Our results are expected to contribute to the understanding of NNLSE and nonlinear optics.

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Three-Airy autofocusing beams*

Cited by 6 publications

References 31 publications

Optical trapping capability of tornado circular Pearcey beams

Optical trapping capability of tornado circular Pearcey beams

Multi-channel generation of vortex beams with controllable polarization states and orbital angular momentum

Propagations of Fresnel diffraction accelerating beam in Schrödinger equation with nonlocal nonlinearity*

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