Design of the integrated laser welding head with a continuously adjustable focus rotation radius
Results in Physics, 2022 In this paper, the integrated laser welding head with a continuously adjustable focus rotation radius was achieved by using the output shaft (hollow shaft) of the high-frequency motor as the laser transmission tube for laser transmission, laser ...
Q. Wu +6 more
doaj +1 more source
High-power, µJ-class Kerr-lens mode-locked thin-disk oscillators at 2.1 µm [PDF]
EPJ Web of ConferencesWe report on the development of 2.1-µm high-power Kerr-lens mode-locked thin-disk oscillator configurations based on Ho:YAG, reaching up to 29 W of output power and 1.74 µJ of pulse energy.
Tomilov Sergei +6 more
doaj +1 more source
Broadband regenerative amplifier based on Ho:CALGO at 2.1 μm [PDF]
EPJ Web of ConferencesWe present a broadband Ho:CALGO regenerative amplifier operating at 2.1 μm, delivering a pulse energy of 342 μJ at 1 kHz with a spectral bandwidth of 5 nm, supporting sub-ps pulse duration.
Suzuki Anna +4 more
doaj +1 more source
Multi-stage keyhole evolution in fiber laser welding: An experimental study and theoretical analysis
Results in Physics, 2021 Laser welding with high beam intensity generates a metal vapor, which partially displaces the metal melt, forming a narrow keyhole-shaped fusion zone. This study conducted theoretical analysis of the keyhole formation processes within fiber laser welding,
Shihui Guo +4 more
doaj +1 more source
Features in the ion emission of Cu, Al, and C plasmas produced by ultrafast laser ablation [PDF]
, 2015 © 2015 AIP Publishing LLC. The bi-modal nature of charge integrated ion kinetic energy distributions, which result from ultrafast laser produced plasmas, is discussed in this paper.
Butler, T. +4 more
core +2 more sources
Dual-beam multipass cell compression for time-resolved femtosecond spectroscopy setups [PDF]
EPJ Web of ConferencesWe present a dual-beam single multi-pass cell compressor designed for applications in time-resolved pump-probe spectroscopy. A single MPC simultaneously compresses two beams with different pulse energies to the same pulse duration, allowing for ...
Omar Alan +3 more
doaj +1 more source
Characterizations of welding mode transformation process during 1-μm and 10-μm laser welding
AIP Advances, 2020 To reveal the enhancing energy coupling effect of plasma, a comparison of the welding mode transformation process during 1-µm and 10-µm laser welding of aluminum alloys is carried out through experimental observation and theoretical analysis.
S. H. Guo, J. L. Zou, R. S. Xiao
doaj +1 more source
Laser-driven few-cycle terahertz sources with high average power [PDF]
APL PhotonicsUltrafast laser-driven terahertz sources are gaining in popularity in an increasingly wide range of scientific and technological applications. However, many fields continue to be severely limited by the typically low average power of these sources, which
Robin Löscher +7 more
doaj +1 more source
Dual-tip-enhanced ultrafast CARS nanoscopy [PDF]
, 2013 Coherent anti-Stokes Raman scattering (CARS) and, in particular, femtosecond adaptive spectroscopic techniques (FAST CARS) have been successfully used for molecular spectroscopy and microscopic imaging.
+15 more
core +3 more sources
Nanoscale diffractive probing of strain dynamics in ultrafast transmission electron microscopy [PDF]
, 2017 The control of optically driven high-frequency strain waves in nanostructured systems is an essential ingredient for the further development of nanophononics. However, broadly applicable experimental means to quantitatively map such structural distortion
da Silva, Nara Rubiano +4 more
core +8 more sources