Enhancement of Electron Energy to the Multi-GeV Regime by a Dual-Stage Laser-Wakefield Accelerator Pumped by Petawatt Laser Pulses

被引：330

作者：

Kim, Hyung Taek ^{[1
,2
]}

Pae, Ki Hong ^{[1
]}

Cha, Hyuk Jin ^{[1
]}

Kim, I. Jong ^{[1
,2
]}

Yu, Tae Jun ^{[1
,2
]}

Sung, Jae Hee ^{[1
,2
]}

Lee, Seong Ku ^{[1
,2
]}

Jeong, Tae Moon ^{[1
,2
]}

Lee, Jongmin ^{[1
]}

机构：

[1] GIST, Adv Photon Res Inst, Kwangju 500712, South Korea

[2] Inst Basic Sci, Ctr Relativist Laser Sci, Kwangju 500712, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 16期

关键词：

TI/SAPPHIRE LASER; HIGH-CONTRAST; BEAMS; GENERATION;

D O I：

10.1103/PhysRevLett.111.165002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Laser-wakefield acceleration offers the promise of a compact electron accelerator for generating a multi-GeV electron beam using the huge field gradient induced by an intense laser pulse, compared to conventional rf accelerators. However, the energy and quality of the electron beam from the laser-wakefield accelerator have been limited by the power of the driving laser pulses and interaction properties in the target medium. Recent progress in laser technology has resulted in the realization of a petawatt (PW) femtosecond laser, which offers new capabilities for research on laser-wakefield acceleration. Here, we present a significant increase in laser-driven electron energy to the multi-GeV level by utilizing a 30-fs, 1-PW laser system. In particular, a dual-stage laser-wakefield acceleration scheme (injector and accelerator scheme) was applied to boost electron energies to over 3 GeV with a single PW laser pulse. Three-dimensional particle-in-cell simulations corroborate the multi-GeV electron generation from the dual-stage laser-wakefield accelerator driven by PW laser pulses.

引用

页数：5

共 33 条

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