Results 41 to 50 of about 68,410 (312)
Spin to orbital angular momentum transfer in frequency up-conversion
Nanophotonics, 2021 We demonstrate the spin to orbital angular momentum transfer in frequency upconversion with structured light beams. A vector vortex is coupled to a circularly polarized Gaussian beam in noncollinear second harmonic generation under type-II phase match ...
Pinheiro da Silva Braian +5 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo +3 more
wiley +1 more source
Development of an adaptive laser beam shaper
, 2022 Paper 1051819, 7 S.The intensity distribution of a laser beam has a high impact on laser processing applications. In many applications, the emitted light of a laser beam source is transformed from a Gaussian intensity distribution into other intensity ...
Pütsch, O. +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study presents an infrared monitoring approach for direct laser interference patterning (DLIP) combined with a convolutional neural network (CNN). Thermal emission data captured during structuring are used to predict surface topography parameters.
Lukas Olawsky +5 more
wiley +1 more source
Spin-orbit interaction in quasi-monochromatic singular beams
Компьютерная оптикаIt is shown that the magnitude of the spin-orbit coupling is the energy efficiency of energy transfer between orthogonally polarized beam components. The energy efficiency changes as the Gaussian beam propagates through the anisotropic crystal.
Y.A. Egorov, A.F. Rubass
doaj +1 more source
Transverse beam tails due to inelastic scattering
Physical Review Special Topics. Accelerators and Beams, 2000 Non-Gaussian beam tails producing low beam lifetimes and background to the experimental detectors can be a serious performance limitation in colliding beam facilities. We describe simulations and measurements of non-Gaussian beam tails performed on the e^
H. Burkhardt, I. Reichel, G. Roy
doaj +1 more source
Heliyon, 2023 The beam spreading and evolution behavior of a partially coherent, Hermite-cosine-Gaussian (HcosG) rectangular multi-Gaussian correlated Schell-model beam propagating in oceanic turbulence is studied. Analytical expressions for the cross-spectral density
Xu Wu, Chuang Wang, Yuhui Kong, Kenan Wu
doaj +1 more source
Mode Gaussian beam tracing [PDF]
Computer Physics Communications, 2016 8 pages, 2 figures.
M. Yu. Trofimov +2 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Optical Binding Phenomena: Observations and Mechanisms [PDF]
, 2009 Novel results on the optical binding of optically-trapped micro-particles are presented. A sophisticated Mie scattering model is developed, capable of performing time-evolution simulations of a multi-particle system. This is used to analyse and interpret
TAYLOR, JONATHAN,MIDGLEY
core