Spatially localized self-injection of electrons in a self-modulated laser-wakefield accelerator by using a laser-induced transient density ramp

被引：93
作者：
Chien, TY [1 ]
Chang, CL
Lee, CH
Lin, JY
Wang, J
Chen, SY
机构：
[1] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Grad Inst Electroopt Engn, Taipei 106, Taiwan
[3] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan
[4] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan
[5] Natl Taiwan Univ, Dept Elect Engn, Taipei 106, Taiwan
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.94.115003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
By using a laser-induced transient density ramp, we demonstrate self-injection of electrons in a self-modulated laser-wakefield accelerator with spatial localization. The number of injected electrons reaches 1.7x10(8). The transient density ramp is produced by a prepulse propagating transversely to drill a density depression channel via ionization and expansion. The same mechanism of injection with comparable efficiency is also demonstrated with a transverse plasma waveguide driven by Coulomb explosion.
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页数：4
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共 29 条
  • [1] GENERATION OF ULTRAFAST ELECTRONS BY SIMULTANEOUS STIMULATED RAMAN BACKWARD AND FORWARD SCATTERING
    BERTRAND, P
    GHIZZO, A
    KARTTUNEN, SJ
    PATTIKANGAS, TJH
    SALOMAA, RRE
    SHOUCRI, M
    [J]. PHYSICAL REVIEW E, 1994, 49 (06): : 5656 - 5659
  • [2] Particle injection into the wave acceleration phase due to nonlinear wake wave breaking
    Bulanov, S
    Naumova, N
    Pegoraro, F
    Sakai, J
    [J]. PHYSICAL REVIEW E, 1998, 58 (05): : R5257 - R5260
  • [3] Evolution of a plasma waveguide created during relativistic-ponderomotive self-channeling of an intense laser pulse
    Chen, SY
    Sarkisov, GS
    Maksimchuk, A
    Wagner, R
    Umstadter, D
    [J]. PHYSICAL REVIEW LETTERS, 1998, 80 (12) : 2610 - 2613
  • [4] Optically controlled seeding of Raman forward scattering and injection of electrons in a self-modulated laser-wakefield accelerator
    Chen, WT
    Chien, TY
    Lee, CH
    Lin, JY
    Wang, J
    Chen, SY
    [J]. PHYSICAL REVIEW LETTERS, 2004, 92 (07)
  • [5] A versatile 10-TW laser system with robust passive controls to achieve high stability and spatiotemporal quality
    Chu, HH
    Huang, SY
    Yang, LS
    Chien, TY
    Xiao, YF
    Lin, JY
    Lee, CH
    Chen, SY
    Wang, J
    [J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2004, 79 (02): : 193 - 201
  • [6] PROPAGATION OF INTENSE SUBPICOSECOND LASER-PULSES THROUGH UNDERDENSE PLASMAS
    COVERDALE, CA
    DARROW, CB
    DECKER, CD
    MORI, WB
    TZENG, KC
    MARSH, KA
    CLAYTON, CE
    JOSHI, C
    [J]. PHYSICAL REVIEW LETTERS, 1995, 74 (23) : 4659 - 4662
  • [7] Plasma electron fluid motion and wave breaking near a density transition
    England, RJ
    Rosenzweig, JB
    Barov, N
    [J]. PHYSICAL REVIEW E, 2002, 66 (01): : 1 - 016501
  • [8] Electron injection into plasma wake fields by colliding laser pulses
    Esarey, E
    Hubbard, RF
    Leemans, WP
    Ting, A
    Sprangle, P
    [J]. PHYSICAL REVIEW LETTERS, 1997, 79 (14) : 2682 - 2685
  • [9] TRAPPING AND ACCELERATION IN NONLINEAR PLASMA-WAVES
    ESAREY, E
    PILLOFF, M
    [J]. PHYSICS OF PLASMAS, 1995, 2 (05) : 1432 - 1436
  • [10] Computer simulations of a single-laser double-gas-jet wakefield accelerator concept
    Hemker, RG
    Hafz, NM
    Uesaka, M
    [J]. PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2002, 5 (04): : 8 - 15
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