Results 21 to 30 of about 327,567 (274)

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

Relativistic laser plasma interactions [PDF]

Journal of Physics D: Applied Physics, 2003
By focusing petawatt peak power laser light to intensities up to 10 21 Wc m −2 , highly relativistic plasmas can now be studied. The force exerted by light pulses with this extreme intensity has been used to accelerate beams of electrons and protons to energies of a million volts in distances of only microns.
openaire   +1 more source

Laser-plasma interactions in magnetized environment [PDF]

Physics of Plasmas, 2018
Propagation and scattering of lasers present new phenomena and applications when the plasma medium becomes strongly magnetized. With mega-Gauss magnetic fields, scattering of optical lasers already becomes manifestly anisotropic. Special angles exist where coherent laser scattering is either enhanced or suppressed, as we demonstrate using a cold-fluid ...
Yuan Shi, Hong Qin, Nathaniel J. Fisch
openaire   +2 more sources

Femtosecond x rays from laser-plasma accelerators [PDF]

, 2013
Relativistic interaction of short-pulse lasers with underdense plasmas has recently led to the emergence of a novel generation of femtosecond x-ray sources. Based on radiation from electrons accelerated in plasma, these sources have the common properties
Beck, A., Corde, S., Fitour, R., Lambert, G., Lefebvre, E., Malka, V., Phuoc, K. Ta, Rousse, A.   +7 more
core   +4 more sources

Radiation sources based on laser–plasma interactions [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
Plasma waves excited by intense laser beams can be harnessed to produce femtosecond duration bunches of electrons with relativistic energies. The very large electrostatic forces of plasma density wakes trailing behind an intense laser pulse provide field potentials capable of accelerating charged particles to high energies over very short distances, as
Jaroszynski, D.A., Bingham, R., Brunetti, E., Ersfeld, B., Gallacher, J., Van Der Geer, B., Issac, R., Jamison, S.P., Jones, D., De Loos, M., Lyachev, A., Pavlov, V., Reitsma, A., Saveliev, Y., Vieux, G., Wiggins, S.M.   +15 more
openaire   +5 more sources

Laser wakefield and direct acceleration in the plasma bubble regime [PDF]

, 2018
Laser wakefield acceleration (LWFA) and direct laser acceleration (DLA) are two different kinds of laser plasma electron acceleration mechanisms. LWFA relies on the laser-driven plasma wave to accelerate electrons.
Zhang, Xi, Ph. D.
core   +1 more source

Laser-Plasma Interactions and Applications [PDF]

Laser plasma accelerators , 2013
Laser-Plasma Interactions and Applications covers the fundamental and applied aspects of high power laser-plasma physics. With an internationally renowned team of authors, the book broadens the knowledge of young researchers working in high power laser-plasma science by providing them with a thorough pedagogical grounding in the interaction of laser ...
V. Malka, J. Faure, Y. Gauduel
openaire   +2 more sources

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

Transverse Dynamics and Energy Tuning of Fast Electrons Generated in Sub-Relativistic Intensity Laser Pulse Interaction with Plasmas [PDF]

, 2006
The regimes of quasi-mono-energetic electron beam generation were experimentally studied in the sub-relativistic intensity laser plasma interaction. The observed electron acceleration regime is unfolded with two-dimensional-particle-in-cell simulations ...
A. Sagisaka, A. Yamazaki, Amiranoff, Andreev, Antonsen, August, Barnes, Bulanov, Bulanov, Chao, Clayton, Esarey, Esirkepov, Faure, Geddes, H. Daido, H. Kotaki, I. Daito, J. Koga, K. Nakajima, K. Ogura, Kitagawa, Liseikina, Liseikina, M. Kando, M. Mori, Malka, Mangles, Miura, Modena, Nakajima, Pukhov, S.V. Bulanov, Sprangle, Sun, T. Kimura, Tajima, Tanaka, Umstadter, Whittum, Xu, Y. Hayashi, Yamazaki   +42 more
core   +2 more sources