English
Related papers

Related papers: Time-dependent energetic laser-ion acceleration by…

200 papers

The dynamics of electric field generation and radial acceleration of ions by a laser pulse of relativistic intensity propagating in an underdense plasma has been investigated using an one-dimensional electrostatic, ponderomotive model…

Plasma Physics · Physics 2008-07-30 A. Macchi , F. Ceccherini , F. Cornolti , S. Kar , M. Borghesi

A two-phase model, where the plasma expansion is an isothermal one when laser irradiates and a following adiabatic one after laser ends, has been proposed to predict the maximum energy of the proton beams induced in the ultra-intense…

Plasma Physics · Physics 2009-11-13 Yongsheng Huang , Yuanjie Bi , Yijin Shi , Naiyan Wang , Xiuzhang Tang , Zhe Gao

Ion acceleration driven by superintense laser pulses is attracting an impressive and steadily increasing effort. Motivations can be found in the potential for a number of foreseen applications and in the perspective to investigate novel…

Plasma Physics · Physics 2015-06-15 Andrea Macchi , Marco Borghesi , Matteo Passoni

The energy of the ions accelerated by an intense electromagnetic wave in the radiation pressure dominated regime can be greatly enhanced due to a transverse expansion of a thin target. The expansion decreases the number of accelerated ions…

Plasma Physics · Physics 2015-05-14 S. V. Bulanov , E. Yu. Echkina , T. Zh. Esirkepov , I. N. Inovenkov , M. Kando , F. Pegoraro , G. Korn

The radiation pressure of next generation ultra-high intensity ($>10^{23}$ W/cm$^{2}$) lasers could efficiently accelerate ions to GeV energies. However, nonlinear quantum-electrodynamic effects play an important role in the interaction of…

In laser-solid interactions, electrons may be generated and subsequently accelerated to energies of the order-of-magnitude of the ponderomotive limit, with the underlying process dominated by direct laser acceleration. Breaking this limit,…

Plasma Physics · Physics 2020-03-11 Meng Wen , Yousef I. Salamin , Christoph H. Keitel

A short overview of laser-plasma acceleration of ions is presented. The focus is on some recent experimental results and related theoretical work on advanced regimes. These latter include in particular target normal sheath acceleration…

Plasma Physics · Physics 2014-03-13 A. Macchi , A. Sgattoni , S. Sinigardi , M. Borghesi , M. Passoni

Intense laser acceleration of ions is inherently difficult due to the velocity mismatch between laser pulses moving at the speed of light and slowly moving massive ions. Instead of directly accelerating the ions, current approaches rely on…

A new electron acceleration mechanism is identified that develops when a relativistically intense laser irradiates the wedge of an over-dense plasma. This induces a diffracted electromagnetic wave with a significant longitudinal electric…

Plasma Physics · Physics 2022-02-17 S. Marini , P. S. Kleij , M. Grech , M. Raynaud , C. Riconda

When the ions are accelerated by the radiation pressure of the laser pulse, their velocity can not exceed the laser group velocity, in the case when it is less than the speed of light in vacuum. This is demonstrated in two cases…

The acceleration of ions in the interaction of high intensity laser pulses with overdense plasmas is investigated with particle-in-cell simulations. For circular polarization of the laser pulses, high-density ion bunches moving into the…

Plasma Physics · Physics 2009-11-10 Andrea Macchi , Federica Cattani , Tatiana V. Liseykina , Fulvio Cornolti

Radiation Pressure Acceleration relies on high intensity laser pulse interacting with solid target to obtain high maximum energy, quasimonoenergetic ion beams. Either extremely high power laser pulses or tight focusing of laser radiation is…

Direct laser acceleration has proven to be an efficient source of high-charge electron bunches and high brilliance X-rays. However, an analytical description of the acceleration in the interaction with varying plasma density targets is…

Plasma Physics · Physics 2024-12-19 Robert Babjak , Bertrand Martinez , Miroslav Krus , Marija Vranic

Laser accelerated protons can be a complimentary source for treatment of oncological diseases to the existing hadron therapy facilities. We demonstrate how the protons, accelerated from near-critical density plasmas by laser pulses having…

We examine the impact of several factors on electron acceleration by a laser pulse and the resulting electron energy gain. Specifically, we consider the role played by: 1) static longitudinal electric field; 2) static transverse electric…

Plasma Physics · Physics 2015-06-24 A. V. Arefiev , A. P. L. Robinson , V. N. Khudik

Using a kilojoule class laser, we demonstrate for the first time that high-contrast picosecond pulses are advantageous for ion acceleration. We show that a laser pulse with optimum duration and a large focal spot accelerates electrons…

Longitudinal ion acceleration from high-intensity (I ~ 10^20 Wcm^-2) laser interactions with helium gas jet targets (n_e ~ 0.04 n_c) have been observed. The ion beam has a maximum energy for He^2+ of approximately 40 MeV and was directional…

We propose a new approach to high-intensity laser-driven electron acceleration in a plasma. Here, we demonstrate that a plasma wave generated by a stimulated forward-scattering of an incident laser pulse can be in a longest acceleration…

Plasma Physics · Physics 2014-05-09 A. A. Rukhadze , S. P. Sadykova , T. G. Samkharadze , P. Gibbon

We propose a new approach to high-intensity relativistic laser-driven electron acceleration in a plasma. Here, we demonstrate that a plasma wave generated by a stimulated forward-scattering of an incident laser pulse can be in the longest…

Plasma Physics · Physics 2015-10-28 S. P. Sadykova , A. Rukhadze , T. G. Samkharadze

Laser-driven collisonless electrostatic shock formation and the subsequent ion acceleration have been studied in near critical density plasmas. Particle-in-cell simulations show that both the speed of laser-driven collisionless…

Plasma Physics · Physics 2016-11-22 M. Liu , S. M. Weng , Y. T. Li , D. W. Yuan , M. Chen , P. Mulser , Z. M. Sheng , M. Murakami , L. L. Yu , X. L. Zheng , J. Zhang
‹ Prev 1 2 3 10 Next ›