Results 71 to 80 of about 3,519,369 (196)
Effect of Laser Beam Profile on Thermal Transfer, Fluid Flow and Solidification Parameters during Laser-Based Directed Energy Deposition of Inconel 718. [PDF]
Materials (Basel), 2023 Chen B +7 more
europepmc +1 more source
Adaptive beam-shaping enabled high-precision patterned laser micro-grooving
International Journal of Extreme ManufacturingMicrogrooves with diverse cross-sections are required in various fields but remain a significant challenge in precision machining, especially for hard-to-machine materials.
Pei Qiu +5 more
doaj +1 more source
The Effects of Profile Errors of Microlens Surfaces on Laser Beam Homogenization
Micromachines, 2017 Microlens arrays (MLAs) are key optical components in laser beam homogenization. However, due to imperfect surface profiles resulting from microfabrication, the functionalities of MLAs in beam modulation could be compromised to some extent.
Qiling Deng +9 more
doaj +1 more source
Direct keyhole laser welding of aluminum alloy AA5754 to titanium alloy Ti6Al4V [PDF]
, 2014 The tensile strength of direct AA5754/Ti6Al4V joints performed by high speed Yb:YAG laser welding is found to be determined by morphology and phase content of dissimilar interface formed between contacting Al-rich and Ti-rich melted zones. Three types of
CICALA, E +6 more
core +1 more source
Adaptive robust control of longitudinal and transverse electron beam profiles
Physical Review Accelerators and Beams, 2016 Feedback control of the longitudinal and transverse electron beam profiles are considered to be critical for beam control in accelerators. In the feedback scheme, the longitudinal or transverse beam profile is measured and compared to a desired profile ...
Amin Rezaeizadeh +2 more
doaj +1 more source
Near-Infrared Switching of Light-Guided Random Laser
IEEE Photonics Journal, 2018 We report on all-optical modulation and switching of light-guided random laser emission in optically pumped dye-doped nematic liquid crystals, whereby a continuous-wave near-infrared beam at 1.064 μm, nonresonant with the medium and ...
Sreekanth Perumbilavil +2 more
doaj +1 more source
Effects of Laser Pulse Duration on Pulse Laser Micro Polishing [PDF]
, 2012 Pulsed laser micro polishing (PL?P) has been shown to be an effective method of polishing micro metallic parts whose surface roughness can approach the feature size.
Li, Xiaochun +4 more
core
, 2012 We demonstrate a simple and robust technique for removal of the carrier wave from a phase-modulated laser beam, using a noninterferometric method that is insensitive to the modulation frequency and instead exploits the polarization dependence of electro ...
Freegarde, Tim +3 more
core +1 more source
Laser beam profile analysis of a hole coupled free-electron laser
Physical Review Special Topics. Accelerators and Beams, 2010 We present measurements and numerical simulations of the laser beam transverse profile of the CLIO infrared free-electron laser (FEL). This FEL uses a hole coupling extraction system, which introduces important perturbation on the intracavity optical ...
R. Prazeres +5 more
doaj +1 more source
Beam profile measurements with the 2-D laser-wire
, 2006 The laser-wire will be an essential diagnostic tool at the International Linear Collider (ILC). It uses a finely focused laser beam to measure the transverse profile of electron bunches by detecting the Compton-scattered photons downstream of the interaction point (IP), where the laser beam intersects the electron beam. Such a system has been installed
Price, M. +15 more
openaire +3 more sources