arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.00482physics.acc-phphysics.plasm-ph
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Laser -尾场加速器的载流子包络相控电子注入

Carrier-Envelope Phase Controlled Electron Injection into a Laser-Wakefield Accelerator

J. Kim, T. Wang, V. Khudik, G. Shvets

摘要:

单周期激光脉冲在等离子体中传播时,根据激光载波包络相位(CEP),引起可控的非对称等离子体电子从激光器中排出,形成振荡的等离子体泡。气泡的横向尾流场被修正,呈现周期性调制。提出了一种将单周期低频激光脉冲和多周期高频激光脉冲相结合的激光尾场加速器注入方案。共同传播的激光脉冲形成横向振荡的尾场,该尾场有效地捕获和加速来自背景等离子体的电子。通过调节单周期激光脉冲的初始CEP,可以独立于多周期脉冲来修改注入动力学,从而能够控制电子聚束的空间轮廓。

英文摘要:

Single cycle laser pulse propagating inside a plasma causes controllable asymmetric plasma electron expulsion from laser according to laser carrier envelope phase (CEP) and forms an oscillating plasma bubble. Bubble's transverse wakefield is modified, exhibiting periodic modulation. Injection scheme for a laser wakefield accelerator combining a single cycle low frequency laser pulse and a many cycle high frequency laser pulse is proposed. The co-propagating laser pulses form a transversely oscillating wakefield which efficiently traps and accelerates electrons from background plasma. By tuning the initial CEP of the single cycle laser pulse, injection dynamics can be modified independently of the many cycle pulse, enabling control of electron bunches' spatial profile.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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