Ultrashort electron bunches from laser-plasma accelerators

被引：0
|
作者：
Esarey, E [1 ]
Schroeder, CB [1 ]
Leemans, WP [1 ]
机构：
[1] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Ctr Beam Phys, Berkeley, CA 94720 USA
来源：
HIGH-FIELD SCIENCE | 2000年
关键词：
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Trapping of plasma electrons in the self-modulated laser wakefield accelerator (LWFA) via the coupling of Raman backscatter to the wake is examined analytically and with 3D test particle simulations. The trapping threshold for linear polarization is much less than for circular and occurs well below wavebreaking. Self-channeling provides continuous focusing of the accelerated electrons which, along with relativistic pump laser effects, can enhance the energy gain by a factor greater than or equal to 2. The colliding pulse method for injecting electrons in the standard LWFA is examined. Simulations of test electrons in 3D fields indicate the production of relativistic ( : 25 MeV) high-quality electron bunches with ultrashort durations (few fs), small energy spreads (few %), and low normalized emittances (1 mm-mrad).
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页码：129 / 143
页数：15
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