Results 11 to 20 of about 1,705,952 (334)
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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High-Purity Multi-Mode Vortex Beam Generation With Full Complex-Amplitude-Controllable Metasurface
IEEE Transactions on Antennas and Propagation, 2023 Vortex beam with inherent orbital angular momentum (OAM) is promising in high-capacity communication. On multimode vortex beam generation, metasurface has shown exceptional advantages of integration and miniaturization.
Quan Li +7 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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Optics Express, 2021 We report on a novel curvilinear optical vortex beam named twin curvilinear vortex beams (TCVBs) with intensity and phase distribution along a pair of two- or three-dimensional curves, both of which share the same shape and the same topological charge.
Zhuang Wang +8 more
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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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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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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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Spiral fractional vortex beams
Optics Express, 2023 A new type of spatially structured light field carrying orbital angular momentum (OAM) mode with any non-integer topological order, referred to as the spiral fractional vortex beam, is demonstrated using the spiral transformation. Such beams have a spiral intensity distribution and a phase discontinuity in the radial direction, which is completely ...
Lixun Wu +6 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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Vortex beam: generation and detection of orbital angular momentum [Invited]
Chinese Optics Letters (COL), 2022 Recent advances in the research of vortex beams, structured beams carrying orbital angular momentum (OAM), have revolutionized the applications of light beams, such as advanced optical manipulations, high-capacity optical communications, and super ...
Yihua Bai +3 more
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