Controlled wake field acceleration via laser pulse shaping

被引:45
作者
Bulanov, SV
Esirkepov, TJ
Naumova, NM
Pegoraro, F
Pogorelsky, IV
Pukhov, AM
机构
[1] CNR,INST PLASMA PHYS,I-20133 MILAN,ITALY
[2] UNIV TURIN,DEPT THEORET PHYS,TURIN,ITALY
[3] BROOKHAVEN NATL LAB,UPTON,NY 11973
[4] MOSCOW INST PHYS & TECHNOL,DOLGOPRUDNYI,RUSSIA
关键词
D O I
10.1109/27.510003
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
We consider the interaction of high-intensity laser pulses with underdense plasmas and address the problem of the excitation of strong and stable wake plasma waves with regular electric fields to provide effective acceleration of charged particles over appreciably long distances. It is known that a relativistically strong laser pulse longer than the wavelength of plasma waves, propagating in a plasma is subject to self-modulation. This may result in a nonstationary behavior of the produced plasma wake field/particle dephasing, and reduced net acceleration. In this paper we present the results of 1(2/2)-D and 2(1/2)-D particle in cell (PIC) simulations which demonstrate that regular wake electric fields may be obtained by a properly shaped laser pulse (sharp steepening of its leading front). These results are relevant to the design of the 100 MeV laser wake field electron acceleration experiment that uses a terawatt picosecond CO2 laser and is under construction at the Brookhaven Accelerator Test Facility.
引用
收藏
页码:393 / 399
页数:7
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