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通过双唤醒注射生成超明亮的极化阿托秒电子束

Ting Sun¹, Qian Zhao¹, Feng Wan¹

¹Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China.

Physical review letters

|February 9, 2024

概括

一种新的双觉醒注射方案使用激光唤醒场加速产生超短,高亮度,极化电子束. 这一突破有望在超快速成像和高能物理研究方面取得进展.

科学领域:

等离子体物理学的物理学
粒子加速粒子加速

背景情况:

激光唤醒场加速 (LWFA) 是下一代电子加速器和辐射源的一个有前途的技术.
产生具有特定属性的高质量电子束 (例如,超短持续时间,高亮度,极化) 仍然是一个关键的挑战.

研究的目的:

提出和研究可控制的双觉醒注射方案,用于产生超短,高亮度和极极化的电子束.
在这个方案中探索电子注入和极化保存的基础物理.

主要方法:

使用辐射偏振激光器作为驱动器在一个准爆发模式.
采用三维粒子在细胞模拟来建模激光-唤醒场相互作用和电子束动态.
分析横向和纵向激光场组件在驱动双醒和促进注射中的作用.

主要成果:

证明产生一个超短的三重电子束 (约. 500阿托秒) 的高六维亮度 (>10^14 A/m2/0.1%).
由于激光辅助的集体旋转前行和非取消的横旋转,实现了高电子束极化 (> 80%).
通过使用几特拉瓦特激光系统成功生成了这些束.

结论:

双醒注入方案提供了一种可控制的方法,通过LWFA产生先进的电子束.
产生的电子束适用于各种应用,包括超快速成像,核结构研究和连贯辐射源.

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