中国物理B ›› 2015, Vol. 24 ›› Issue (1): 15205-015205.doi: 10.1088/1674-1056/24/1/015205

所属专题： TOPICAL REVIEW — Ultrafast intense laser science

• TOPICAL REVIEW—Ultrafast intense laser science • 上一篇    下一篇

Developments in laser wakefield accelerators: From single-stage to two-stage

李文涛, 王文涛, 刘建胜, 王成, 张志钧, 齐荣, 余昌海, 李儒新, 徐至展   

  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2014-11-28 修回日期:2014-12-09 出版日期:2015-01-05 发布日期:2015-01-05
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 11425418, and 61221064), the National Basic Research Program of China (Grant No. 2011CB808100), and the Science and Technology Talent Project of Shanghai City, China (Grant Nos. 12XD1405200 and 12ZR1451700).

Developments in laser wakefield accelerators: From single-stage to two-stage

Li Wen-Tao (李文涛), Wang Wen-Tao (王文涛), Liu Jian-Sheng (刘建胜), Wang Cheng (王成), Zhang Zhi-Jun (张志钧), Qi Rong (齐荣), Yu Chang-Hai (余昌海), Li Ru-Xin (李儒新), Xu Zhi-Zhan (徐至展)   

  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2014-11-28 Revised:2014-12-09 Online:2015-01-05 Published:2015-01-05
  • Contact: Wang Wen-Tao, Liu Jian-Sheng E-mail:wwt1980@siom.ac.cn;michaeljsliu@siom.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 11425418, and 61221064), the National Basic Research Program of China (Grant No. 2011CB808100), and the Science and Technology Talent Project of Shanghai City, China (Grant Nos. 12XD1405200 and 12ZR1451700).

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摘要：

Laser wakefield accelerators (LWFAs) are compact accelerators which can produce femtosecond high-energy electron beams on a much smaller scale than the conventional radiofrequency accelerators. It is attributed to their high acceleration gradient which is about 3 orders of magnitude larger than the traditional ones. The past decade has witnessed the major breakthroughs and progress in developing the laser wakfield accelerators. To achieve the LWFAs suitable for applications, more and more attention has been paid to optimize the LWFAs for high-quality electron beams. A single-staged LWFA does not favor generating controllable electron beams beyond 1 GeV since electron injection and acceleration are coupled and cannot be independently controlled. Staged LWFAs provide a promising route to overcome this disadvantage by decoupling injection from acceleration and thus the electron-beam quality as well as the stability can be greatly improved. This paper provides an overview of the physical conceptions of the LWFA, as well as the major breakthroughs and progress in developing LWFAs from single-stage to two-stage LWFAs.

关键词: laser wakefield acceleration, staged acceleration

Abstract:

Laser wakefield accelerators (LWFAs) are compact accelerators which can produce femtosecond high-energy electron beams on a much smaller scale than the conventional radiofrequency accelerators. It is attributed to their high acceleration gradient which is about 3 orders of magnitude larger than the traditional ones. The past decade has witnessed the major breakthroughs and progress in developing the laser wakfield accelerators. To achieve the LWFAs suitable for applications, more and more attention has been paid to optimize the LWFAs for high-quality electron beams. A single-staged LWFA does not favor generating controllable electron beams beyond 1 GeV since electron injection and acceleration are coupled and cannot be independently controlled. Staged LWFAs provide a promising route to overcome this disadvantage by decoupling injection from acceleration and thus the electron-beam quality as well as the stability can be greatly improved. This paper provides an overview of the physical conceptions of the LWFA, as well as the major breakthroughs and progress in developing LWFAs from single-stage to two-stage LWFAs.

Key words: laser wakefield acceleration, staged acceleration

中图分类号:  (Laser-plasma acceleration of electrons and ions)

  • 52.38.Kd
41.75.Jv (Laser-driven acceleration?) 52.35.Mw (Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))