Results 11 to 20 of about 410,028 (288)
IEEE Photonics Journal, 2018 We originally exploit the vortex beams with patterns of closed polygons [namely, polygonal vortex beams (PVBs)] generated by a quasi-frequency-degenerate (QFD) Yb:CALGO laser resonator with astigmatic transformation. The PVBs with peculiar patterns of triangular, square, and parallelogram shapes carrying large orbital angular momentums (OAMs) are ...
Yijie Shen +4 more
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Review on fractional vortex beam [PDF]
Nanophotonics, 2021 Abstract 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 sophisticated orbital angular momentum modulation dimension.
Hao Zhang +5 more
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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
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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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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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Double and Square Bessel–Gaussian Beams
Micromachines, 2023 We obtain a transform that relates the standard Bessel–Gaussian (BG) beams with BG beams described by the Bessel function of a half-integer order and quadratic radial dependence in the argument.
Eugeny G. Abramochkin +2 more
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Vortex beam as a positioning tool
Optics Express, 2022 Remote positioning by precise measurements of lateral displacements of laser beams at large distances is inevitably disturbed by the influence of atmospheric turbulences. Here we propose the use of optical vortices, which exhibit lower transversal variations at an experimentally validated range of 100 meters.
Agnieszka Popiołek-Masajada +7 more
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Nondiffracting beams for vortex tomography [PDF]
Optics Letters, 2010 3 pages. 2 eps figures.
Rehacek, J. +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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