Results 251 to 260 of about 70,968 (286)

Vortex Coherent Beam Combining

Laser Congress 2021 (ASSL,LAC), 2021
We propose Coherent Beam Combining with vortex wavefront to create an effective optical trap. More than 50 dB barrier height (wall to center irradiance ratio) for 127-hexagonal lattice was shown in numerical model.
Jan K. Jabczynski, Przemyslaw Gontar, Lukasz Gorajek, Waldemar Zendzian, Krzysztof Kopczyński   +4 more
openaire   +1 more source

Vortex Hermite–Gaussian laser beams

Optics Letters, 2015
We study elliptical vortex Hermite-Gaussian (vHG) beams, which are described by the complex amplitude proportional to the nth-order Hermite polynomial whose argument is a function of a real parameter a. At |a|1, similar isolated optical nulls of the vHG beams are found on the horizontal axis. At a=0, the vHG beam becomes identical to the HG mode of the
V V, Kotlyar, A A, Kovalev, A P, Porfirev   +2 more
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Spatial intensity correlations of a vortex beam and a perfect optical vortex beam

Journal of the Optical Society of America A, 2019
We present a model based on the Fresnel diffraction scheme for the spatial coherence function of random fields created by scattering optical vortex and perfect vortex beams. By using the spatial coherence function we showed analytically, numerically, and experimentally the dependence and independence of the speckle size of an optical vortex and perfect
Cristian Hernando, Acevedo, Yezid, Torres-Moreno, Aristide, Dogariu   +2 more
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Polarization basis for vortex beams

Journal of the Optical Society of America A, 2001
Attention is called to a polarization basis formed by four Jones vectors that is reducible to two basic structures. In these states the field is linearly polarized at any point, but the polarization direction changes with the angular coordinate. Very simple equations hold for the field lines of these basis vectors.
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Unwound vortex beam shaping

SPIE Proceedings, 2007
A beam shaping nietliod based on the superposition and unwinding of vortex beams is proposed. This method allows for the continuous tuning of the orbital angular momentum content and longitudinal intensity distribution of the beam. We provide with a closed expression for the orbital angular momentum content of a general superposition of vortex beams ...
Carlos López-Mariscal, Julio C. Gutiérrez-Vega   +1 more
openaire   +1 more source

Elliptical Airyprime Vortex Beam

Optics Communications, 2023
Dehao Chen, Zhenwu Mo, Zehong Liang, Junjie Jiang, Huilin Tang, Yidan Sun, Ziyu Wang, Quanfeng Wei, Yanru Chen, Dongmei Deng   +9 more
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Intracavity vortex beam generation

SPIE Proceedings, 2011
In this paper we explore vortex beams and in particular the generation of single LG0l modes and superpositions thereof. Vortex beams carry orbital angular momentum (OAM) and this intrinsic property makes them prevalent in transferring this OAM to matter and to be used in quantum information processing.
Darryl Naidoo, Kamel Aït-Ameur, Andrew Forbes   +2 more
openaire   +1 more source

Optical Vortex Beams

2023
Shiyao Fu, Chunqing Gao
openaire   +1 more source

Vortex Beams

2023
openaire   +1 more source

High-Purity Multi-Mode Vortex Beam Generation With Full Complex-Amplitude-Controllable Metasurface

IEEE Transactions on Antennas and Propagation, 2023
Quan Li, Chao Wu, Lijun Jin
exaly