Results 31 to 40 of about 208,806 (265)

Impacts of Ambient and Ablation Plasmas on Short- and Ultrashort-Pulse Laser Processing of Surfaces

Micromachines, 2014
In spite of the fact that more than five decades have passed since the invention of laser, some topics of laser-matter interaction still remain incompletely studied. One of such topics is plasma impact on the overall phenomenon of the interaction and its
Nadezhda M. Bulgakova, Alexei N. Panchenko, Vladimir P. Zhukov, Sergey I. Kudryashov, Antonio Pereira, Wladimir Marine, Tomas Mocek, Alexander V. Bulgakov   +7 more
doaj   +1 more source

Structure-Mediated Excitation of Air Plasma and Silicon Plasma Expansion in Femtosecond Laser Pulses Ablation

Research, 2018
Femtosecond laser-induced surface structures upon multiple pulses irradiation are strongly correlated with the pulse number, which in turn significantly affects successive laser-material interactions.
Qingsong Wang, Lan Jiang, Jingya Sun, Changji Pan, Weina Han, Guoyan Wang, Feifei Wang, Kaihu Zhang, Ming Li, Yongfeng Lu   +9 more
doaj   +1 more source

Investigation of the wakefield generation in the interaction of the intense laser pulse with gas [PDF]

مجله علوم و فنون هسته‌ای, 2021
In the present work, the formation of the wakefield during the interaction of intense laser pulse with a gas medium has been investigated by using PIC simulation code, including the ionization process.
E. Khalilzadeh, M.J. Jafari, Z. Dehghany
doaj   +1 more source

Measurement of laser absorptivity for operating parameters characteristic of laser drilling regime [PDF]

, 2008
Publisher version : http://iopscience.iop.org/0022-3727/41/15/155502/Laser drilling in the percussion regime is commonly used in the aircraft industry to drill sub-millimetre holes in metallic targets.
SCHNEIDER, Matthieu, BERTHE, Laurent, FABBRO, Rémy, MULLER, Maryse   +3 more
core   +1 more source

Effect of external magnetic field on wakefield generation in underdense plasma slab using backward semi-Lagrangian Vlasov code

Physical Review Accelerators and Beams, 2019
Laser wakefield excitation in the interaction of femtosecond laser pulse with an underdense thin magnetized plasma slab is studied by one dimensional relativistic Vlasov-Maxwell system of equations.
S. N. Razavinia, M. Ghorbanalilu
doaj   +1 more source

Experimental Investigations of Magnetohydrodynamic Plasma Jets [PDF]

, 2009
This thesis primarily focuses on understanding the plasma behavior during the helicity injection stage of a pulsed spheromak experiment. Spheromak formation consists of a series of dynamic steps whereby highly localized plasma near the electrodes evolves
Kumar, Deepak
core   +1 more source

Design considerations for the use of laser-plasma accelerators for advanced space radiation studies

, 2012
We present design considerations for the use of laser-plasma accelerators for mimicking space radiation and testing space-grade electronics. This novel application takes advantage of the inherent ability of laser-plasma accelerators to produce particle ...
Pretzler G, Rosenzweig JB, Koenigstein, T., Hidding, B., Karger, O., Pretzler, G., Konigstein T, Rosenzweig, J. B., Hidding B, Karger O   +9 more
core   +1 more source

First laser–plasma interaction experiments on Shenguang Octopus laser facility [PDF]

Matter and Radiation at Extremes
On laser facilities for achieving inertial confinement fusion ignition, several beams are usually bundled together and injected into the target chamber through a common port.
T. Gong, Z. C. Li, T. Xu, Q. Wang, Y. Y. Liu, K. Q. Pan, Y. Ji, W. S. Zhang, B. Li, Z. J. Liu, X. Li, L. Hao, R. Yan, H. Zhao, Y. G. Liu, B. Deng, X. M. Liu, Y. L. Li, X. S. Peng, Z. Y. Guan, S. W. Li, X. H. Jiang, Q. Li, W. Zhang, J. Zheng, P. Li, H. B. Cai, S. Y. Zou, Y. S. Dong, F. Wang, D. Yang, Q. H. Zhu, J. M. Yang, Z. Q. Zhao, Y. K. Ding   +34 more
doaj   +1 more source

Transition from Coherent to Stochastic electron heating in ultrashort relativistic laser interaction with structured targets

Scientific Reports, 2017
Relativistic laser interaction with micro- and nano-scale surface structures enhances energy transfer to solid targets and yields matter in extreme conditions. We report on the comparative study of laser-target interaction mechanisms with wire-structures
G. Cristoforetti, P. Londrillo, P. K. Singh, F. Baffigi, G. D’Arrigo, Amit D. Lad, R. G. Milazzo, A. Adak, M. Shaikh, D. Sarkar, G. Chatterjee, J. Jha, M. Krishnamurthy, G. R. Kumar, L. A. Gizzi   +14 more
doaj   +1 more source

Two-dimensional simulations of laser-plasma interaction and hot electron generation in the context of shock-ignition research [PDF]

, 2015
Laser-plasma interaction and hot electron generation play a crucial role in the context of inertial confinement fusion and in particular in the shock-ignition concept.
Weber S., Pšikal J., Klimo O., Tikhonchuk V.T.   +3 more
core   +1 more source