Results 51 to 60 of about 410,028 (288)
Results in Physics, 2023 This paper presents an innovative form of the symmetric and autofocusing beam in theory and experiment. These symmetric Olver beams (SOBs) originate from the spectral symmetry phase of the Olver beams.
Yidan Sun +7 more
doaj +1 more source
Creation of two vortex-entangled beams in a vortex-beam collision with a plane wave [PDF]
Physical Review A, 2012 4 pages, 2 figures; v2: title modified, introduction rewritten and expanded, results ...
openaire +2 more sources
Broadband all-dielectric meta-devices for visible perfect vortex beams generation
, 2023 Conventional optical elements are typically designed for a specific wavelength and have limited functionality, hindering their practical applications and integration with on-chip devices.
Massoud, Yehia Mahmoud +2 more
core +1 more source
Correcting vortex splitting in higher order vortex beams
Optics Express, 2014 We demonstrate a general method for the first order compensation of singularity splitting in a vortex beam at a single plane. By superimposing multiple forked holograms on the SLM used to generate the vortex beam, we are able to compensate vortex splitting and generate beams with desired phase singularities of order ℓ = 0, 1, 2, and 3 in one plane.
Richard, Neo +5 more
openaire +2 more sources
Modeling for Partially Spatially Coherent Vortex Beams
IEEE Photonics Journal, 2017 We propose a method for modeling a wide class of partially spatially coherent vortex beams. It is shown that any member of such beams can be represented as an incoherent superposition of fully coherent vortex models weighted by a non-negative weighting ...
Zhangrong Mei
doaj +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Recent advances on optical vortex generation
Nanophotonics, 2018 This article reviews recent progress leading to the generation of optical vortex beams. After introducing the basics of optical vortex beams and their promising applications, we summarized different approaches for optical vortex generation by discrete ...
Wang Xuewen +5 more
doaj +1 more source
Vortex Beam Encoded All-Optical Logic Gates Based on Nano-Ring Plasmonic Antennas
Nanomaterials, 2019 Vortex beam encoded all-optical logic gates are suggested to be very important in future information processing. However, within current logic devices, only a few are encoded by using vortex beams and, in these devices, some space optical elements with ...
Houquan Liu +5 more
doaj +1 more source
Physical Essence of Propagable Fractional‐Strength Optical Vortices in Free Space
Advanced Photonics Research, 2023 Fractional‐order vector vortex beams (VVBs) have recently been demonstrated as new carriers of fractional‐strength optical vortices. However, the inherent mechanism of the new vortex beams, formed by the combination of both unstable states, to propagate ...
Xiaoyu Weng +10 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran +6 more
wiley +1 more source