Influence of laser beam profile on morphology and optical properties of silicon nanoparticles formed by laser ablation in liquid [PDF]
Beilstein Journal of NanotechnologyIn this study, silicon nanoparticles (NPs) were produced by pulsed laser ablation in a liquid, aiming to investigate the influence of a laser beam profile on the properties of the resultant NPs.
Natalie Tarasenka +3 more
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Machine Learning for automatic pointing alignment and spatial beam filtering [PDF]
EPJ Web of Conferences, 2023 Constraint Bayesian optimization approach is used to optimize the beam pointing and spatial filtering of a laser beam using the capillary transmission and the output beam profile, as the optimization criteria.
Lajtner Karlo +3 more
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Revealing the effects of laser beam shaping on melt pool behaviour in conduction-mode laser melting
Journal of Materials Research and Technology, 2023 Laser beam shaping offers remarkable possibilities to control and optimise process stability and tailor material properties and structure in laser-based welding and additive manufacturing.
Amin Ebrahimi +5 more
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Doughnut-Shaped and Top Hat Solar Laser Beams Numerical Analysis
Energies, 2021 Aside from the industry-standard Gaussian intensity profile, top hat and non-conventional laser beam shapes, such as doughnut-shaped profile, are ever more required.
Miguel Catela +6 more
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Observing the profile of an atom laser beam [PDF]
Physical Review A, 2005 We report on an investigation of the beam profile of an atom laser extracted from a magnetically trapped $^{87}$Rb Bose-Einstein condensate. The transverse momentum distribution is magnified by a curved mirror for matter waves and a momentum resolution of 1/60 of a photon recoil is obtained. We find the transverse momentum distribution to be determined
Köhl, M. +4 more
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Hybrid PIC–fluid simulations for fast electron transport in a silicon target
Matter and Radiation at Extremes, 2023 Ultra-intense laser-driven fast electron beam propagation in a silicon target is studied by three-dimensional hybrid particle-in-cell–fluid simulations. It is found that the transverse spatial profile of the fast electron beam has a significant influence
X. H. Yang +6 more
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M-shaped beam profile output from an off-axis relay-imaging eight-pass Nd:glass laser preamplifier
Frontiers in Physics, 2023 In ultra-high-power/energy solid-state Nd:glass laser facilities, the gain distribution of the main amplifier system (MAS) is nonuniform owing to strong amplified spontaneous emissions in the MAS. A shaped beam profile from a preamplifier (PreAMP) should
Xudong Xie +3 more
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Relativistic self focusing and frequency shift of super-Gaussian laser beam in plasma
Results in Physics, 2020 Relativistic self focusing and frequency shift of laser beam having super-Gaussian profile in space and Gaussian profile in time is studied in a plasma. The relativistic mass nonlinearity is found to cause time dependent self focusing of the laser pulse ...
Hitendra K. Malik, Lalita Devi
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Profiling of micrometer-sized laser beams in restricted volumes [PDF]
Applied Optics, 2012 We present a method for determining the 3D intensity distribution of directed laser radiation with micrometer resolution in restricted volumes. Our method is based on in-coupling and guiding properties of optical fibers, with the current version requiring only few hundred micrometers.
Miroshnychenko, Yevhen +3 more
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Beam Control in an Intracavity Frequency-Doubling Semiconductor Disk Laser
Applied Sciences, 2019 In this paper, we have demonstrated a 1.3 W green laser using a V-shaped intracavity frequency doubling 1036 nm semiconductor disk laser. The beam quality of the fundamental and second harmonic generation (SHG) laser is investigated.
Guanyu Hou +9 more
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