Results 1 to 10 of about 129,497 (188)

Enhancement of laser ablation via interacting spatial double-pulse effect

Opto-Electronic Advances, 2018
A novel spatial double-pulse laser ablation scheme is investigated to enhance the processing quality and efficiency for nanosecond laser ablation of silicon substrate.
Zhou Rui, Lin Shengdong, Ding Ye, Yang Huan, Yong Keng Kenny Ong, Hong Minghui   +5 more
doaj   +2 more sources

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

Metrology 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, Marek Skórczakowski, Waldemar Żendzian   +2 more
doaj   +1 more source

Controlling electron recollision with combined linear and circular polarization

Frontiers 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, Yifan Han, Weifeng Yang, Weiwei Yu, Xiaolei Hao, Xiaohong Song, Weidong Li, Jing Chen, Jing Chen   +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

Физико-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, Natalia A. Alekseenko, Ludmila V. Markova, Lubov S. Rutkovskaiy, Mariya P. Patapovich, Anatoli P. Zajogin   +5 more
doaj   +1 more source

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

Opto-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, George D. Tsibidis, Emmanuel Stratakis   +2 more
doaj   +1 more source

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

Engineering 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, Abdurahman K. Ali, Tamir H. Ali   +2 more
doaj   +1 more source

SPECTRAL STUDIES OF THE PROCESSES OF ALUMINUM NANOPOWDER FORMATION EXPOSED BY SHORT SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The processes of formation of oxidized nanopowders depending on the number of pulses were studied when double laser pulses with an energy of 52 mJ and an interpulse interval of 10 microseconds were applied to an aluminum target placed in a closed ...
Kh. Bazzal, N.A. Alekseenko, E.S. Voropay, M. N. Kovalenko, N.H. Trinh, A.P. Zazhogin   +5 more
doaj   +1 more source

Double optical gating of high order harmonics from plasma surfaces

New Journal of Physics, 2021
Laser driven high harmonic generation from relativistically oscillating plasma surfaces is a promising route to isolated attosecond pulses with high peak brightness.
R E Smith, E White, P M Gilmore, B Dromey, M Yeung   +4 more
doaj   +1 more source

Optimal laser-control of double quantum dots [PDF]

, 2007
Coherent single-electron control in a realistic semiconductor double quantum dot is studied theoretically. Using optimal-control theory we show that the energy spectrum of a two-dimensional double quantum dot has a fully controllable transition line.
A. Castro, A. G. Butkovskiy, A. Rubio, E. K. U. Gross, E. Räsänen, J. Werschnik, J. Werschnik   +6 more
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SPECTRAL STUDIES OF THE DEFOCUSING EFFECT ON THE AND FORMATION PROCESSES WHEN D16T ALUMINUM ALLOY IS SUBJECTED TO DOUBLE LASER PULSES IN AIR

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The effect exerted by defocusing of double laser pulses on purposeful formation of the component and charge composition of the laser plasma has been studied using the laser spark spectrometry (LSS-1 laser).
K. Bazzal, Е.S. Voropay, А.P. Zajogin, М.P. Patapovich   +3 more
doaj   +1 more source