Multi-beam array stitching method based on scanning Hartmann for imaging quality evaluation of large space telescopes
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-25632-0
Abstract: To test large-aperture space optical systems in a simple and highly efficient manner, the scanning Hartmann test (SHT) has been used to measure the sub-aperture wavefront slopes of optical systems by scanning with a collimated… read more here.
Keywords: beam array; space; scanning hartmann; stitching method ... See more keywords
Multi-object coaxial imaging with an Airy beam array
Sign Up to like & getrecommendations! Published in 2025 at "Scientific Reports"
DOI: 10.1038/s41598-025-88534-y
Abstract: Multi-object imaging can obtain more comprehensive information to analyze the surrounding environment better and is widely used in many fields. While most multi-object imaging methods require objects not to be coaxial, which must ensure that… read more here.
Keywords: airy beam; multi object; beam array;
Experimental synthesis of higher-order Poincaré sphere beam array with spatial coherence engineering
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0147831
Abstract: We propose a compact method to experimentally synthesize a class of vector beam arrays with periodic higher-order Poincaré sphere (HOPS) polarization states by engineering the spatial coherence structure of a partially coherent light source. We… read more here.
Keywords: spatial coherence; coherence; higher order; beam array ... See more keywords
Propagation Properties of Gaussian Schell-Model Beam Array in the Jet Engine Exhaust Induced Turbulence
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2020.3037653
Abstract: The effects of the jet engine turbulence on a Gaussian Schell-Model (GSM) beam array propagating in a jet engine plume are studied theoretically. The analytical expressions of the cross-spectral density (CSD) function, the spectral degree… read more here.
Keywords: jet engine; beam array; beam;
Design and Verification of 1-D Electron Beam Array Focusing System for Planar Integrated Traveling Wave Tube
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Electron Devices"
DOI: 10.1109/ted.2024.3413716
Abstract: This article presents a comprehensive validation study on the efficacy of the planar-integrated periodic permanent magnetic (PIPPM) focusing system, employing a specially designed and fabricated two-channel beamstick to assess its performance in 1-D electron beam… read more here.
Keywords: electron beam; beam; beam array; planar integrated ... See more keywords
Spatially-distributed orbital angular momentum beam array generation based on greedy algorithms and coherent combining technology.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.014945
Abstract: A novel approach to generate a spatially-distributed orbital angular momentum (OAM) beam array based on coherent combining technology is presented. The arrangement of the multiple fundamental Gaussian beams at the initial plane, as well as… read more here.
Keywords: beam array; beam; orbital angular; spatially distributed ... See more keywords
Crosstalk mitigation of a controllable annular auto-focusing vortex beam array in a turbulent atmosphere.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.520771
Abstract: In this paper, we introduce a new type of controllable auto-focusing vortex beam array named annular quasi-Airy vortex beam array (QAVBA), which can reduce the crosstalk among different orbital angular momentum (OAM) modes of optical… read more here.
Keywords: auto focusing; beam; beam array; annular qavba ... See more keywords
Measurement of the vortex spectrum in a vortex-beam array without cuts and gluing of the wavefront.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.005635
Abstract: We present a new technique for measuring the squares of the amplitudes and phases of partial vortex-beams in a complex beam array in real time. The technique is based on measuring the high-order intensity moments… read more here.
Keywords: array; beam array; vortex spectrum; measurement vortex ... See more keywords
An Iterative High-Precision Algorithm for Multi-Beam Array Stitching Method Based on Scanning Hartmann
Sign Up to like & getrecommendations! Published in 2024 at "Applied Sciences"
DOI: 10.3390/app14020794
Abstract: The multi-beam array stitching test system (MASTS) based on the Hartmann principle is employed to measure the aberrations in large-aperture optical systems. As each small-aperture and ideal parallel beam traverses the optical system, it is… read more here.
Keywords: system; multi beam; beam; beam array ... See more keywords
Radially Phased-Locked Hermite–Gaussian Correlated Beam Array and Its Properties in Oceanic Turbulence
Sign Up to like & getrecommendations! Published in 2023 at "Photonics"
DOI: 10.3390/photonics10050551
Abstract: The descriptions of a radially phased-locked Hermite–Gaussian correlated beam array are introduced, the equation of this beam array in oceanic turbulence is derived, and the intensity profiles of this beam array are shown and analyzed.… read more here.
Keywords: beam; beam array; hermite gaussian; oceanic turbulence ... See more keywords