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Experimental results, supported by precise modelling, demonstrate optimisation of a plasma-based injector with intermediate laser pulse energy ($<1$ J), corresponding to a normalised vector potential $a_0 = 2.15$, using ionisation injection…

Coherence among rotational ion channels during photoionization is exploited to control the anisotropy of the resulting photoelectron angular distributions at specific photoelectron energies. The strategy refers to a robust and single…

化学物理 · 物理学 2019-09-11 R. Chamakhi , M. Telmini , O. Atabek , E. Charron

We consider a situation in when the interaction of relativistically intense EM waves with an isotropic electron positron plasma takes place, i.e.,we consider short pulse lasers with intensity up to 1021 W/cm2, in which the photon density is…

等离子体物理 · 物理学 2018-04-30 Zahida Ehsan , N. L. Tsintsadze

Relativistic electron beams produced by intense lasers over short distances have important applications in high energy density physics and medical technologies. Vacuum laser acceleration with plasma mirrors injectors has garnered…

等离子体物理 · 物理学 2025-11-19 Jiaxin Liu , Zeyue Pang , Hehanlin Wang , Zi-Yu Chen

We suggest that some observational features of high-energy radiation from pulsars should be explained in terms of three dimensional geometric models, e.g. the phase-resolved X-ray and $\gamma$-ray spectra and the energy dependent light…

天体物理学 · 物理学 2009-11-10 K. S. Cheng

In this manuscript we present a theoretical framework and its numerical implementation to simulate the out-of-equilibrium electron dynamics induced by the interaction of ultrashort laser pulses in condensed-matter systems. Our approach is…

We revisit the stabilization of ionization of atoms subjected to a superintense laser pulse using nonlinear dynamics. We provide an explanation for the lack of complete ionization at high intensity and for the decrease of the ionization…

混沌动力学 · 物理学 2015-06-23 Michael Norman , C. Chandre , T. Uzer , Peijie Wang

We establish a generalized picture of the phase-sensitivity of laser-induced directional bond-breaking using the H$_2$ molecule as the example. We show that the well-known proton ejection anisotropy measured with few-cycle pulses arises as…

We consider the dynamics of a charged particle (e.g., an electron) oscillating in a laser field in flat spacetime and describe it in terms of the variable mass metric. By applying Einstein's equivalence principle, we show that, after…

高能物理 - 唯象学 · 物理学 2017-07-20 M. A. Wadud , B. King , R. Bingham , G. Gregori

A structure of a laser pulse may significantly influence the dynamics of interacting particles. In the case of dilute plasma the particle dynamics may be considered in the single particle approximation. In this paper the problem of the…

等离子体物理 · 物理学 2024-12-03 E. Dmitriev , Ph. Korneev

We propose a new particle acceleration mechanism. Electron can be accelerated to relativistic energy within a few electromagnetic wave cycles through the mechanism which is named electromagnetic and magnetic field resonance acceleration…

等离子体物理 · 物理学 2007-05-23 Hong Liu , X. T. He , S. G. Chen , W. Y. Zhang

A long laser beam propagating through an underdense plasma produces a positively charged ion channel by expelling plasma electrons in the transverse direction. We consider the dynamics of a test electron in a resulting two-dimensional…

等离子体物理 · 物理学 2015-06-17 Alexey V. Arefiev , Vladimir N. Khudik , Marius Schollmeier

We consider various sets of Vlasov-Fokker-Planck equations modeling the dynamics of charged particles in a plasma under the effect of a strong magnetic field. For each of them in a regime where the strength of the magnetic field is…

偏微分方程分析 · 数学 2020-06-30 Maxime Herda , Luis Miguel Rodrigues

We report the observation of macroscopic field-free orientation, i.e. more than 73 % of CO molecules pointing in the same direction. This is achieved through an all-optical scheme operating at high particle densities ($>10^{17}$cm$^{-3}$)…

化学物理 · 物理学 2014-07-09 P. M. Kraus , D. Baykusheva , H. J. Wörner

The polytropic index of electrons in a magnetized plasma is experimentally investigated in the presence of heating and anisotropic work done, incorporating the effective dimensionality arising from temperature anisotropy. The study is…

等离子体物理 · 物理学 2024-10-18 Ayesha Nanda , Sudeep Bhattacharjee

This paper describes the first experimental demonstration of the guiding of a relativistic electron beam in a solid target using two co-linear, relativistically intense, picosecond laser pulses. The first pulse creates a magnetic field…

We offer a metal model suitable for the description of fast electrophysical processes in conductors under influence of powerful electronic and laser radiation of femto- and picosecond duration, and also high-voltage electromagnetic pulses…

等离子体物理 · 物理学 2016-12-21 N. B. Volkov , E. A. Chingina , A. P. Yalovets

We measure the emission of energetic electrons from the interaction between ultrashort laser pulses and a solid density plasma in the relativistic regime. We detect an electron beam that only appears with few-cycle pulses (< 10 fs) and…

等离子体物理 · 物理学 2018-06-04 N. Zaïm , F. Böhle , M. Bocoum , A. Vernier , S. Haessler , X. Davoine , L. Videau , J. Faure , R. Lopez-Martens

Relativistic flying mirrors in plasmas are realized as thin dense electron (or electron-ion) layers accelerated by high-intensity electromagnetic waves to velocities close to the speed of light in vacuum. The reflection of an…

等离子体物理 · 物理学 2016-08-03 Sergei V. Bulanov , Timur Zh. Esirkepov , Masaki Kando , James K. Koga

Linear acceleration in free space is a topic that has been studied for over 20 years, and its ability to eventually produce high-quality, high energy multi-particle bunches has remained a subject of great interest. Arguments can certainly…