Results 21 to 30 of about 410,028 (288)

Propagation and Focusing Properties of Vortex Beams Based on Light Ray Tracing

open access: yesFrontiers in Physics, 2022
By using the ray-tracing method based on geometric optics, we studied the propagating and focusing characteristics of vortex beams with a top-hat intensity distribution.
Meng-Qiang Cai   +4 more
doaj   +1 more source

Propagation of Partially Coherent Flat-Topped Vortex Hollow Beams in Anisotropic Turbulent Plasma

open access: yesInternational Journal of Optics, 2022
The propagation properties of partially coherent circular flat-topped (FT) vortex hollow/nonvortex beams are studied in anisotropic turbulent plasma. The analytical expression of the optical intensity of these beams is obtained by employing the extended ...
Abdu A. Alkelly   +2 more
doaj   +1 more source

Spiral fractional vortex beams

open access: yesOptics Express, 2023
A new type of spatially structured light field carrying orbital angular momentum (OAM) mode with any non-integer topological order, referred to as the spiral fractional vortex beam, is demonstrated using the spiral transformation. Such beams have a spiral intensity distribution and a phase discontinuity in the radial direction, which is completely ...
Lixun Wu   +6 more
openaire   +2 more sources

Divergence of optical vortex beams [PDF]

open access: yesApplied Optics, 2015
4 pages, 4 ...
Reddy, Salla Gangi   +5 more
openaire   +3 more sources

Vortex strength and beam propagation factor of fractional vortex beams

open access: yesOptics Express, 2019
9 pages, 5 ...
Jisen Wen   +4 more
openaire   +3 more sources

Generation and characteristics of an Airy vortex beam from the anomalous vortex beam

open access: yesResults in Physics, 2022
Hybrid beams have evoked a long-running research upsurge due to its unique properties and extensive application. In this paper, we propose a novel method to generate a kind of hybrid Airy vortex beam (AiVB) with orbital angular momentum (OAM) by imposing a phase modulation on an anomalous vortex beam (AVB), which hybrid AiVB possesses dual ...
Qiang Zhang, Zhirong Liu, Xun Wang
openaire   +2 more sources

Vortex knots in light [PDF]

open access: yes, 2005
Optical vortices generically arise when optical beams are combined. Recently, we reported how several laser beams containing optical vortices could be combined to form optical vortex loops, links and knots embedded in a light beam (Leach et al 2004 ...
Dennis, MR   +13 more
core   +1 more source

Research on Blind Area Suppression Technology for Vortex Beam Detection [PDF]

open access: yesHangkong bingqi
To address the problem of far-target detection blind areas caused by the dark hollow regions in the propagation direction of vortex beams, a method based on the coherent synthesis of vortex superposition using a ring-beam array is proposed.
Peng Zhiyong, Tu Yan, Zhang Ninghua, Zhou Shuping, Zhao Zidan, Xie Guanghui
doaj   +1 more source

Broadband Vortex Beam Modulating System Based on Electrically Controlled Liquid Crystal Devices

open access: yesPhotonics, 2023
Vortex beams with helical phase wavefronts have recently emerged as a research hotspot because of their widespread applications such as ultra-high dimensional information encoding, quantum entanglement, and data transmission due to their unique ...
Xinyi Zhou   +5 more
doaj   +1 more source

Optical trapping with a perfect vortex beam [PDF]

open access: yes, 2014
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko   +9 more
core   +1 more source

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