Results 11 to 20 of about 2,764,686 (330)
Vortex beams of atoms and molecules [PDF]
Science, 2021 Vortex beams of nonelementary particles The discovery of photon and electron vortex beams carrying orbital angular momentum (as a result of a twisting wave front) has led to appreciable advances in optical imaging, optical and electron microscopy, communications, quantum optics and micromanipulation, and more advances are ...
Alon Luski +9 more
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Intake Ground Vortex Aerodynamics [PDF]
, 2008 When an aircraft is operating in static or near static conditions during taxiing or take-o a vortex can form between the ground and the intake. With engine diameters increasing, intakes are moving non-dimensionally closer to the ground and as a ...
Murphy, John
core +7 more sources
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
doaj +1 more source
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
semanticscholar +1 more source
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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Bidirectional Terahertz Vortex Beam Regulator. [PDF]
Materials (Basel), 2022 Most of the reported vortex beam generators with orbital angular momentum (OAM) in the terahertz region only operate in either the reflection mode or the transmission mode, which greatly limits the integration and application in terahertz technology systems. Herein, we propose a full-space vortex beam regulator at two different frequencies. By changing
Li J, Guo F, Zhang S, Liu C.
europepmc +3 more sources
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
doaj +1 more source
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
doaj +1 more source
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
openaire +2 more sources