Results 1 to 10 of about 10,295 (216)
Acoustic Bessel Vortex Beam by Quasi-Three-Dimensional Reflected Metasurfaces [PDF]
Micromachines, 2021 Vortex beams have a typical characteristic of orbital angular momentum, which provides a new degree of freedom for information processing in remote communication and a form of non-contact manipulation for trapping particles.
Yin Wang +6 more
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Review on fractional vortex beam [PDF]
Nanophotonics, 2021 As an indispensable complement to an integer vortex beam, the fractional vortex beam has unique physical properties such as radially notched intensity distribution, complex phase structure consisting of alternating charge vortex chains, and more ...
Zhang Hao +5 more
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A Broadband Vortex Beam Generator Based on Single-Layer Hybrid Phase-Turning Metasurface [PDF]
Micromachines, 2023 Vortex beams carrying orbital angular momentum (OAM) have become a research frontier due to the prospect of improving spectral efficiency and transmission capacity in communication systems.
Cheng Fu, Jianing Zhao, Fang Li, Hao Li
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Theoretical study of vortex beam generation based on geometric coordinate transformation
Frontiers in Physics, 2022 By performing a conformal optical mapping of an input beam from Cartesian to log-polar coordinates, we propose a method to generate vortex beam. By tilting the incident beam, a phase gradient is attached and evolves into a vortex phase due to the optical
Yanke Li +5 more
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Experimental investigation in Airy transform of Gaussian beams with optical vortex
Results in Physics, 2021 The Airy transform was first introduced for a Gaussian beam, and the output beam is an Airy beam. When the Gaussian beam is extended to the Gaussian beam with optical vortex, what kind of output beam will be achieved by executing the Airy transformation.
Yi-Qing Xu +5 more
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Controlling Dispersion Characteristic of Focused Vortex Beam Generation
Photonics, 2022 As an important structured beam, vortex beams have a wide range of applications in many fields. However, conventional vortex beam generators require complex optical systems, and this problem is particularly serious with regards to focused vortex beam ...
Xueshen Li, Zhigang Fan
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Propagation-invariant vortex Airy beam whose singular point follows its main lobe
New Journal of Physics, 2021 We propose and demonstrate a novel vortex Airy beam which is a superposition of an Airy beam and its laterally sheared beam with a π /2 phase shift.
Masato Suzuki +3 more
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Photonics, 2022 The vortex laser beam has been widely applied in many fields for its unique properties. However, researchers have to conduct extensive and recurring experiments to find the modulation abilities of the vortex beam modes for a given resonant cavity.
Shibing Lin +4 more
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Generation, Topological Charge, and Orbital Angular Momentum of Off-Axis Double Vortex Beams
Photonics, 2023 Compared with the on-axis vortex beam and the off-axis single vortex beam, the off-axis double vortex beam has more control degrees of freedom and brings rich physical properties.
Mingxian Guo +6 more
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AIP Advances, 2023 Fractional vortex beams have attracted increasing attention due to their complex yet intriguing physical properties, such as radial notch intensity distribution and higher degrees of modulation in orbital angular momentum.
Xiang Xu +5 more
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