Results 11 to 20 of about 3,654 (163)
Dynamic control of hybrid grafted perfect vector vortex beams [PDF]
Nature Communications, 2023 Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (
Hammad Ahmed +5 more
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Measuring high-efficiency perfect composite vortex beams with reflective metasurfaces in microwave band [PDF]
NanophotonicsOptical vortex beams carrying orbit angular momentum have attracted significant attention recently. Perfect vortex beams, characterized by their topological charge-independent intensity profile, have important applications in enhancing communication ...
Hong Jing +8 more
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Theoretical Study on Generation of Multidimensional Focused and Vector Vortex Beams via All-Dielectric Spin-Multiplexed Metasurface [PDF]
Nanomaterials, 2022 The optical vortex (OV) beams characterized by orbital angular momentum (OAM) possess ubiquitous applications in optical communication and nanoparticle manipulation.
Yue Liu +8 more
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Applied Sciences, 2020 In this paper, we review the generation of vortex beams carrying orbital angular momentum in the microwave domain. We firstly present the theory of Laguerre−Gaussian beams where it is demonstrated that they carry such type of momentum.
Kuang Zhang +3 more
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Phase memory of optical vortex beams [PDF]
Scientific Reports, 2022 Optical vortex beams are under considerable scrutiny due to their demonstrated potential for applications ranging from quantum optics to optical communications and from material processing to particle trapping.
Mahdi Eshaghi +4 more
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Generating Different Polarized Multiple Vortex Beams at Different Frequencies from Laminated Meta-Surface Lenses [PDF]
Micromachines, 2021 We demonstrate the generation of multiple orbital angular momentum (OAM) vortex beams with different radiating states at different frequencies through a laminated meta-surface lens consisting of a dual polarized meta-array interconnected with a frequency
Pengfei Gao, Rui Yang
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Quarter-Wave Plate Metasurfaces for Generating Multi-Channel Vortex Beams [PDF]
NanomaterialsMetasurfaces of quarter-wave plate (QWP) meta-atoms have exhibited high flexibility and versatile functionalities in the manipulation of light fields. However, the generation of multi-channel vortex beams with the QWP meta-atom metasurfaces presents a ...
Ziheng Zhang +9 more
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Vortex beam array generated by a volume compound fork grating in lithium niobite
Results in Physics, 2021 Here, we report a generation of vortex beam array based on a micro volume compound fork grating fabricated by a femtosecond laser direct writing technique in lithium niobite crystal.
Yu Zhuang +5 more
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Advances on Solid-State Vortex Laser
Photonics, 2022 Vortex beams (VBs) are structured beams with helical wavefronts carrying orbital angular momentum (OAM) and they have been widely used in lots of domains, such as optical data-transmission, optical tweezer, quantum entanglement, and super-resolution ...
Zhichao Zhang +3 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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