TITLE

Enhanced surface acceleration of fast electrons by using subwavelength grating targets

AUTHOR(S)
Guang-yue Hu; An-le Lei; Jing-wei Wang; Lin-gen Huang; Wen-tao Wang; Xin Wang; Yi Xu; Bai-fei Shen; Jian-sheng Liu; Wei Yu; Ru-xin Li; Zhi-zhan Xu
PUB. DATE
August 2010
SOURCE
Physics of Plasmas;Aug2010, Vol. 17 Issue 8, p083102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Surface acceleration of fast electrons in intense laser-plasma interaction is investigated by using subwavelength grating targets. The fast electron beam emitted along the target surface was enhanced by more than three times relative to that by using planar target. The total number of the fast electrons ejected from the front surface of grating target was two times higher than that of planar target. The method to enhance the surface acceleration of fast electrons may have several applications such as in ion acceleration and the experiment of high energy density physics.
ACCESSION #
53421786

 

Related Articles

  • Self-channelling of relativistic laser pulses in large-scale underdense plasmas. Naseri, N.; Bochkarev, S. G.; Rozmus, W. // Physics of Plasmas;Mar2010, Vol. 17 Issue 3, p033107 

    Relativistic self-focusing and channelling of intense laser pulses have been studied in underdense plasma using two-dimensional particle-in-cell (PIC) simulations, for different laser powers and plasma densities. Analytical solutions for the stationary evacuated channels have been recovered in...

  • Nonlinear properties of relativistically intense laser in plasmas. Bin Qiao; Lai, C. H.; Zhou, C. T.; He, X. T.; Wang, X. G.; Yu, M. Y. // Physics of Plasmas;Nov2007, Vol. 14 Issue 11, p112301 

    Nonlinear characteristics including spatial chaos and patterns associated with relativistically intense laser-plasma interaction are studied theoretically and numerically using a model relativistic nonlinear Schrödinger equation. It is shown that in the phase space irregular homoclinic orbit...

  • Measuring the electron density gradients of dense plasmas by deflectometry using short-wavelength probe. Nejdl, J.; Kozlová, M.; Mocek, T.; Rus, B. // Physics of Plasmas;Dec2010, Vol. 17 Issue 12, p122705 

    A new and simple experimental technique for the measurement of electron density gradients in dense laser-produced plasmas using an electromagnetic wave probe is presented. The main advantage of this method is the low requirements on coherence of the probing beam. The method is based on measuring...

  • Compton harmonic resonances, stochastic instabilities, quasilinear diffusion, and collisionless damping with ultra-high-intensity laser waves. Rax, J. M. // Physics of Fluids B: Plasma Physics;Dec92, Vol. 4 Issue 12, p3962 

    The dynamics of an electron in a finite set of linearly or circularly polarized ultra-high-intensity (above 1018 W/cm2) laser waves is investigated within the framework of a Hamiltonian analysis. The Compton harmonic resonances are identified as the source of various stochastic instabilities....

  • Nonlinear wake-field generation and relativistic focusing of intense laser pulses in plasmas. Ting, A.; Esarey, E.; Sprangle, P. // Physics of Fluids B: Plasma Physics;Jun90, Vol. 2 Issue 6, p1390 

    The generation of nonlinear plasma wake fields by an intense, short laser pulse and the relativistic optical guiding of intense laser pulses in plasmas are studied with a nonlinear, selfconsistent model of laser-plasma interactions. Nonlinear steepening and period lengthening of the plasma waves...

  • Role of collisions in particle-in-cell modeling of high-density short-pulse laser-plasma interaction. Weber, S.; Bonnaud, G.; Gauthier, J.-C. // Physics of Plasmas;Feb2001, Vol. 8 Issue 2, p387 

    One-and-one-half-dimensional particle-in-cell (PIC) modeling with restored short-encounter collisional behavior is used to model the interaction of high-intensity short laser pulses with plasmas. The role of Coulomb collisions in expanding thin plasma targets at solid density is particularly...

  • Filamentation of ultrashort pulse laser beams resulting from their propagation over long... La Fontaine, B.; Vidal, F.; Jiang, Z.; Chin, C.Y.; Comtois, D.; Desparois, A.; Johnston, T.W.; Pepin, H. // Physics of Plasmas;May99, Vol. 6 Issue 5, p1615 

    Studies the propagation of high-power short-pulse laser beams over considerable distances in air. Lateral dimensions of the filaments; Early values of plasma electron density; Use of longitudinal spectral interferometry.

  • Concerning the Maximum Energy of Ions Accelerated at the Front of a Relativistic Electron Cloud Expanding into Vacuum. Bulanov, S. V.; Esirkepov, T. Zh.; Koga, J.; Tajima, T.; Farina, D. // Plasma Physics Reports;Jan2004, Vol. 30 Issue 1, p18 

    Results of particle-in-cell simulations are presented that demonstrate characteristic interaction regimes of high-power laser radiation with plasma. It is shown that the maximum energy of fast ions can substantially exceed the electron energy. A theoretical model is proposed of ion acceleration...

  • Suppression of transverse proton beam divergence by controlled electron cloud in laser-plasma interactions. Sonobe, R.; Kawata, S.; Miyazaki, S.; Nakamura, M.; Kikuchi, T. // Physics of Plasmas;Jul2005, Vol. 12 Issue 7, p073104 

    In this paper, suppression of a transverse proton divergence is focused by using a controlled electron cloud. When an intense short pulse laser illuminates a foil plasma target, first electrons are accelerated and they form a strong electrostatic field at the target surface, then ions are...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics