基于激光等离子体加速的自由电子激光研究新进展

姜海; 王文涛; 冯珂; 顾铮先; 李儒新

doi:10.11884/HPLPB202234.220090

基于激光等离子体加速的自由电子激光研究新进展

doi: 10.11884/HPLPB202234.220090

姜海^{1, 2,},
王文涛^2, ,,
冯珂²,
顾铮先¹,
李儒新^{2, 3, ,}

1.
上海理工大学理学院，上海 200093
2.
中国科学院上海光学精密机械研究所，强场激光物理国家重点实验室，中国科学院超强激光科学卓越中心，上海 201800
3.
上海科技大学物质科学与技术学院，上海 200031

基金项目: 国家自然科学基金项目(11991072, 11875065, 12105353);中国科学院战略性先导科技专项(XDB16);中国科学技术部国家重点实验室计划和中国科学院青年创新促进会项目(Y201952, 2022242)

详细信息

作者简介:
姜　海，jianghai@siom.ac.cn

通讯作者:
王文涛，wwt1980@siom.ac.cn

李儒新，ruxinli@siom.ac.cn

中图分类号: O53
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- 被引次数: 0
出版历程
- 收稿日期: 2022-03-30
- 修回日期: 2022-06-28
- 网络出版日期: 2022-07-08
- 刊出日期: 2022-08-22

Research progress of free electron laser based on laser plasma acceleration

Jiang Hai^{1, 2
,},
Wang Wentao^{2
, ,},
Feng Ke²,
Gu Zhengxian¹,
Li Ruxin^{2, 3
, ,}

1.
College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
2.
State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Shanghai 201800, China
3.
School of Physics Science and Technology, Shanghai Tech University, Shanghai 200031, China

摘要

摘要: 激光等离子体加速器能够在cm尺度内产生GeV量级的高品质电子束，为研制台式化自由电子激光提供驱动源。但是受限于激光等离子体加速中的难点和现有技术发展，电子束的品质难以达到自由电子激光的需求，尤其在稳定性、发散角和能散等方面，阻碍了台式化自由电子激光的研制。介绍了基于激光等离子体加速器的自由电子激光的最新进展，整理了目前高增益自由电子激光实验过程中存在的主要挑战和对应的解决方案与实验进展，并展望未来的发展方向。最近的研究结果证明，通过控制和优化激光等离子体加速器的注入和加速过程产生的高品质电子束可以在指数增益区域实现自发辐射放大，产生高增益的辐射，这也推动基于激光等离子体加速器的自由电子激光研究进入了一个新的阶段。
- 激光等离子体加速器 /
- 高品质电子束 /
- 自由电子激光 /
- 波荡器辐射 /
- 新型光源
Abstract: Laser plasma accelerator can accelerate electron beams to GeV level within a few centimeters, which provides a driving source for the development of table-top free electron laser. However, due to the difficulties in laser plasma acceleration and the development of existing technology, the quality of electron beam is not high enough to realize free electron laser, especially in the aspects of stability, divergence and energy spread of electron beam, which present substantial obstacles to the development of compact free electron laser. In this paper, the latest research progress of free electron laser based on laser plasma accelerator is introduced, the main challenges in the experiment for high gain free electron laser are analyzed, then corresponding solutions and experimental progress are summarized, and the future development is prospected. A recent research shows that the high-quality electron beam produced by controlling and optimizing the injection and acceleration of laser plasma accelerator can achieve spontaneous emission amplification and produce high gain radiation in the exponential gain regime, which promotes the research for free electron laser based on laser plasma accelerator to a new stage.
- laser plasma accelerator /
- high-quality electron beams /
- free electron laser /
- undulator radiation /
- novel light sources

HTML全文

图 1 激光等离子体加速器驱动的自由电子激光装置国际分布图

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图 2 Chicane示意图

Figure 2. Schematic diagram of chicane

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图 3 横向梯度波荡器示意图

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图 4 紧凑型束流传输线示意图

Figure 4. Schematic diagram of compact beamline

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