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Demonstration of a beam loaded nanocoulomb-class laser wakefield accelerator [PDF]

open access: yesNature Communications, 2017
Higher beam quality and stability are desired in laser-plasma accelerators for their applications in compact light sources. Here the authors demonstrate in laser plasma wakefield electron acceleration that the beam loading effect can be employed to ...
J. P. Couperus   +14 more
doaj   +3 more sources

High quality laser beam soldering [PDF]

open access: yesMicrosystem Technologies, 2002
In the work presented the potential of a pyrometric process control during laser beam soldering will be enhanced. Primarily we have developed a processing head with an integrated up-to-date pyrometric sensor conditioned for the temperature range of soft soldering.
L. Bosse   +3 more
openaire   +3 more sources

Spatially Structured Optical Pump for Laser Generation Tuning

open access: yesNanomaterials, 2023
The goal and essential parameter of laser light conversion is achieving emitted radiation of higher brightness. For many applications, the laser beam must have the highest available beam quality and highest achievable power.
Gabrielius Kontenis   +3 more
doaj   +1 more source

Laser Beam Quality of Airy Beam in the Jet Engine Exhaust Induced Turbulence

open access: yesAtmosphere, 2023
Theoretical predictions of laser beam interactions with jet-engine-exhaust-induced turbulence are of importance for optimization of various optical systems, including LIDARs and airborne laser measurement systems.
Wei Wen, Xiaoru Zhang
doaj   +1 more source

Beam shaping technology and its application in metal laser additive manufacturing: A review

open access: yesJournal of Materials Research and Technology, 2023
Laser additive manufacturing (AM) technology is widely applied in manufacturing critical components (e.g., rocket fuel nozzles, satellite antenna mounts and human implants, etc.) in automotive, medical, aerospace and other fields due to the advantages of
Jiang Bi   +6 more
doaj   +1 more source

Quasi-Continuous Wave Pulsed Laser Welding of Copper Lap Joints Using Spatial Beam Oscillation

open access: yesMicromachines, 2022
Laser beam welding of copper (Cu) using near-infrared radiation is extremely challenging due to its high thermal conductivity and large laser reflectivity.
Amirhossein Sadeghian   +6 more
doaj   +1 more source

Boosting of proton beam quality by a pair of low-intensity reverse laser pulses

open access: yesAIP Advances, 2023
An attempt has been made to boost the proton beam quality using the multiple counter-propagating laser pulses target interaction with the help of particle-in-cell simulation.
Obaydur Rahman, Zheng-Mao Sheng
doaj   +1 more source

Diode-Pumped 50 Hz–10 J Nano-Second Nd:YAG Laser

open access: yesFrontiers in Physics, 2022
In this letter, we report a diode-pumped nano-second laser with the output energy 10 J, the repetition rate 50 Hz, and the average power 500 W. The main amplifier was made up of eight amplify modules.
Xinying Jiang   +15 more
doaj   +1 more source

Beam Quality of a Nonideal Atom Laser [PDF]

open access: yesPhysical Review Letters, 2006
We study the propagation of a non-interacting atom laser distorted by the strong lensing effect of the Bose-Einstein Condensate (BEC) from which it is outcoupled. We observe a transverse structure containing caustics that vary with the density within the residing BEC.
Riou, Jean-Félix   +6 more
openaire   +4 more sources

PRELIMINARY QUALITY ANALYSIS OF GF-7 SATELLITE LASER ALTIMETER FULL WAVEFORM DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The full-waveform data is the core data of GaoFen-7 (GF-7) satellite laser altimeter, and evaluation of waveform data quality is an important step and premise for satellite laser altimetry and quality control.
G. Li   +12 more
doaj   +1 more source

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