Results 271 to 280 of about 1,705,952 (334)
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A Transmissive Metasurface Generating Wideband OAM Vortex Beam in the Ka-Band
IEEE Antennas and Wireless Propagation Letters, 2023In this letter, a wideband transmitting metasurface is proposed to generate the orbital angular momentum (OAM) vortex beam in the Ka-band. The proposed unit cell is a novel combination of dual-square loops and a cross dipole element printed on four ...
Muhammad Ishfaq +6 more
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Advanced Optical Materials, 2023
The vortex beams carrying orbital angular momentum (OAM) are of extreme importance for applications in communication, nanoscience, and optical micro‐manipulation.
Dingbo Chen +8 more
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The vortex beams carrying orbital angular momentum (OAM) are of extreme importance for applications in communication, nanoscience, and optical micro‐manipulation.
Dingbo Chen +8 more
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Creation and Control of Vortex‐Beam Arrays in Atomic Vapor
Laser & Photonics Reviews, 2023Optical vortices, which are beams with spiral‐shaped wavefronts and screw phase dislocations, have potential for supporting high‐capacity optical communications.
Jinpeng Yuan +6 more
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Guided-Wave Inspired Metasurfaces for Multifunctional Vortex Beam Generation and Manipulation
Journal of Lightwave Technology, 2023Vortex beam, manifesting the characteristic helical phase front and amplitude singularity, carries inherent orbital angular momentum (OAM) and has received intensive research from its generation, detection to various promising applications.
Hongyu Shi +6 more
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Generating the 1.5 kW mode-tunable fractional vortex beam by a coherent beam combining system.
Optics Letters, 2023As an essential component of the vortex beam, the fractional vortex beam has significantly advanced various applications, such as optical imaging, optical communication, and particle manipulation.
Jinhu Long +9 more
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Optics Letters, 2021
A class of wide-stationary optical sources with a specially designed degree of coherence profile is introduced for radiating spectral densities with a vortex whose core’s location and size can be controlled at a specified range. This is achieved by modeling of the source coherence state as a combination of a helicoidal separable phase and a Cartesian ...
Zhangrong Mei +3 more
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A class of wide-stationary optical sources with a specially designed degree of coherence profile is introduced for radiating spectral densities with a vortex whose core’s location and size can be controlled at a specified range. This is achieved by modeling of the source coherence state as a combination of a helicoidal separable phase and a Cartesian ...
Zhangrong Mei +3 more
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Engineering synthesized vortex beams
Proceedings of the 2022 Conference on Lasers and Electro-Optics Pacific Rim, 2022We propose an effective scheme to engineer the light tubes of vortex beams with predetermined geometries and controllable intensity profiles. This is beneficial to a broad range of applications such as particle trapping and micromachining.
Na Xiao +3 more
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Inverse Design of Optical Vortex Beam Emitters
ACS Photonics, 2022: Vortex beams are stable solutions of Maxwell’s equations that carry phase singularities and orbital angular momentum, unique properties that give rise to many applications in the basic sciences, optical communications, and quantum technologies ...
A. White +7 more
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Arbitrary Vortex Beam Synthesis With Donut-Shaped Metasurface
IEEE Transactions on Antennas and Propagation, 2021This article presents an efficient synthesis method for generating vortex beams based on donut-shaped orbital angular momentum (OAM) metasurfaces.
Lingjun Yang +4 more
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Polychromatic perfect vortex beam
Journal of OpticsSwati Gangwar +5 more
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