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

被引：95

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.

引用

收藏

页数：4

相关论文

共 29 条

[1] GENERATION OF ULTRAFAST ELECTRONS BY SIMULTANEOUS STIMULATED RAMAN BACKWARD AND FORWARD SCATTERING [J].

BERTRAND, P ;

GHIZZO, A ;

KARTTUNEN, SJ ;

PATTIKANGAS, TJH ;

SALOMAA, RRE ;

SHOUCRI, M .

PHYSICAL REVIEW E, 1994, 49 (06) :5656-5659

[2] Particle injection into the wave acceleration phase due to nonlinear wake wave breaking [J].

Bulanov, S ;

Naumova, N ;

Pegoraro, F ;

Sakai, 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 [J].

Chen, SY ;

Sarkisov, GS ;

Maksimchuk, A ;

Wagner, R ;

Umstadter, D .

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 [J].

Chen, WT ;

Chien, TY ;

Lee, CH ;

Lin, JY ;

Wang, J ;

Chen, SY .

PHYSICAL REVIEW LETTERS, 2004, 92 (07)

[5] A versatile 10-TW laser system with robust passive controls to achieve high stability and spatiotemporal quality [J].

Chu, HH ;

Huang, SY ;

Yang, LS ;

Chien, TY ;

Xiao, YF ;

Lin, JY ;

Lee, CH ;

Chen, SY ;

Wang, J .

APPLIED PHYSICS B-LASERS AND OPTICS, 2004, 79 (02) :193-201

[6] PROPAGATION OF INTENSE SUBPICOSECOND LASER-PULSES THROUGH UNDERDENSE PLASMAS [J].

COVERDALE, CA ;

DARROW, CB ;

DECKER, CD ;

MORI, WB ;

TZENG, KC ;

MARSH, KA ;

CLAYTON, CE ;

JOSHI, C .

PHYSICAL REVIEW LETTERS, 1995, 74 (23) :4659-4662

[7] Plasma electron fluid motion and wave breaking near a density transition [J].

England, RJ ;

Rosenzweig, JB ;

Barov, N .

PHYSICAL REVIEW E, 2002, 66 (01) :1-016501

[8] Electron injection into plasma wake fields by colliding laser pulses [J].

Esarey, E ;

Hubbard, RF ;

Leemans, WP ;

Ting, A ;

Sprangle, P .

PHYSICAL REVIEW LETTERS, 1997, 79 (14) :2682-2685

[9] TRAPPING AND ACCELERATION IN NONLINEAR PLASMA-WAVES [J].

ESAREY, E ;

PILLOFF, M .

PHYSICS OF PLASMAS, 1995, 2 (05) :1432-1436

[10] Computer simulations of a single-laser double-gas-jet wakefield accelerator concept [J].

Hemker, RG ;

Hafz, NM ;

Uesaka, M .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2002, 5 (04) :8-15