Results 71 to 80 of about 3,654 (163)
Partially coherent fractional vortex beam
Optics Express, 2018 We introduce a new kind of partially coherent vortex (PCV) beam with fractional topological charge named partially coherent fractional vortex (PCFV) beam and derive the propagation formula for such beam passing through a stigmatic ABCD optical system with the help of the convolution method.
Jun Zeng +4 more
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Entangled vector vortex beams [PDF]
Physical Review A, 2016 Light beams having a vectorial field structure, or polarization, that varies over the transverse profile and a central optical singularity are called vector vortex (VV) beams and may exhibit specific properties such as focusing into "light needles" or rotation invariance.
D'Ambrosio, Vincenzo +6 more
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Polarization-Dependent Distortion of the Vortex Light Field Generated Using a Vortex Retarder
IEEE Photonics JournalA vortex retarder (VR) is a widely-used optical component for converting Gaussian light beams into vortex beams, exhibiting unique advantages in a few broadband applications.
Jinyu Pan +7 more
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IEEE Access, 2020 In this paper, we propose a polarization insensitive metasurface to generate broadband vortex beams with narrow divergence angle. The metasurface is composed of 30×30 I-shaped metal elements printed on the F4B substrate with metal ground plane ...
Hongyu Ma +6 more
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Rising complexity of the OAM beam structure as a way to a higher data capacity
Light: Science & Applications, 2022 Standard vortex beams carrying different OAM (optical angular momentum) modes can provide independent communication channels for information transmission.
Andrey Pryamikov
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Soliton algebra by vortex-beam splitting
Optics Letters, 2001 We experimentally demonstrate the possibility of breaking up intense vortex light beams into stable and controllable sets of parametric solitons. We report observations performed in seeded second-harmonic generation, but the scheme can be extended to all parametric processes.
Minardi, Stefano +4 more
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Fractional vortex ultrashort pulsed beams with modulating vortex strength
Optics Express, 2019 In most papers about the fractional vortex continuous beams (FVCBs), the relationship between the total vortex strength Sα and the propagation distance is not analyzed since the vortex structure is not stable in the near field. In this paper, we theoretically study the fractional vortex ultrashort pulsed beams (FVUPBs) possessing non-integer ...
Mengdi Luo, Zhaoying Wang
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PhotonicsThis paper proposes a co-aperture reflective metasurface that successfully generates four-channel Bessel vortex beams with equal divergence angle in both Ka and Ku bands.
Zhiwei Wang +3 more
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Pulsed polarized vortex beam enabled by metafiber lasers
PhotoniXPulsed polarized vortex beams, a special form of structured light, are generated by tailoring the light beam spatiotemporally and witness the growing application demands in nonlinear optics such as ultrafast laser processing and surface plasma excitation.
Chenxi Zhang +5 more
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Simulation of vortex ion generation from a cold atom ion source
Results in PhysicsVortex waves with orbital angular momentum (OAM) have garnered significant attention since their appearance due to their unique properties. Vortex beams are experimentally demonstrated with photons, electrons, neutrons, and atoms.
Xuan Liu +7 more
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