Results 11 to 20 of about 30,090 (307)

Collinear double-pulse laser-induced breakdown spectroscopy using Nd:YAG laser generating two nanosecond pulses of regulated energy ratios [PDF]

open access: yesMetrology and Measurement Systems, 2023
In the paper results of single- and double-pulse LIBS (Laser-Induced Breakdown Spectroscopy) measurements in collinear geometry are described. The experiments were performed using a unique self-made Nd:YAG laser operating in the Q-switching regime, where
Wojciech Skrzeczanowski   +2 more
doaj   +3 more sources

Nanoparticle Generation by Double-Pulse Laser Ablation [PDF]

open access: yes, 2018
The purpose of this chapter is to give a critical review of the processes involved in the generation of nanoparticles by material ablation with two time-delayed laser pulses. Experimental investigations of the ablation characteristics during nanoparticle synthesis with short double pulses are presented.
Axente, Emanuel   +2 more
openaire   +3 more sources

Nonsequential Double Ionization with Few-Cycle Laser Pulses [PDF]

open access: yesPhysical Review Letters, 2004
1 revtex file, 4 eps files (text and Fig. 1 have been changed; Fig. 1 has been compressed due to memory problems)
Liu, X., Faria, C. Figueira de Morisson
openaire   +4 more sources

Nonsequential Double Ionization of Atoms in Strong Laser Pulses [PDF]

open access: yesActa Physica Polonica A, 2007
It is now possible to produce laser pulses with reproducible pulse shape and controlled carrier envelope phase. It is discussed how that can be explored in double ionisation studies. To this end we solve numerically the Schrodinger equation for a limited dimensionality model which nevertheless treats electron repulsion qualitatively correctly and ...
Prauzner-Bechcicki, Jakub   +3 more
openaire   +2 more sources

Non-sequential double ionization with near-single cycle laser pulses [PDF]

open access: yesScientific Reports, 2017
A three-dimensional semiclassical model is used to study double ionization of Ar when driven by a near-infrared and near-single-cycle laser pulse for intensities ranging from 0.85 × 1014 W/cm2 to 5 × 1014 W/cm2. Asymmetry parameters, distributions of the
A. Chen   +4 more
doaj   +2 more sources

Controlling electron recollision with combined linear and circular polarization

open access: yesFrontiers in Physics, 2022
We theoretically investigate the non-sequential double ionization of Ar atoms in the combined fields of linearly polarized laser and circularly polarized laser through 3D semiclassical simulations. By partially overlapping the two time-delayed multicycle
Shuai Ben   +8 more
doaj   +1 more source

Studies of processes of the precursor formation for production of CuAl2O4 nanoceramics at the effect of double laser pulses on AD1 and M2 alloys in the air atmosphere

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
A study of formation of mixed Al nanopowders, copper and aluminum oxides, and precursors for production of CuAlO2 and CuAl2O4 nanoceramics under the influence of double laser pulses with energy of 53 mJ and the interpulse interval of 10 microseconds on a
Maxim N. Kovalenko   +5 more
doaj   +1 more source

Ultrashort pulsed laser induced complex surface structures generated by tailoring the melt hydrodynamics

open access: yesOpto-Electronic Advances, 2022
We present a novel approach for tailoring the laser induced surface topography upon femtosecond (fs) pulsed laser irradiation. The method employs spatially controlled double fs laser pulses to actively regulate the hydrodynamic microfluidic motion of the
Fotis Fraggelakis   +2 more
doaj   +1 more source

Preparation of Silver Nanoparticles and Study the Optical and Antibacterial Properties [PDF]

open access: yesEngineering and Technology Journal, 2015
In this work,preparationand characterization of Silver nanoparticles which were synthesized by pulsed (Q-switched, 1064 and 532nm doubled frequency-Nd: YAG) laser ablation of silver metal immersed in double distilled and deionized water DDDW, without any
Abdulhadi kadhim AL-Ogaili   +2 more
doaj   +1 more source

A model for the dissociation pulse, afterglow, and laser pulse in the Cu/CuCl double pulse laser [PDF]

open access: yesJournal of Applied Physics, 1980
A model which completely describes the Cu/CuCl double pulse laser is presented. The dissociation discharge pulse and afterglow are simulated and the results are used as initial conditions for an analysis of the pumping discharge pulse and laser pulse.
Kushner, M. J., Culick, F. E. C.
openaire   +2 more sources

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