This study aimed to scrutinize the acceleration of an electron in a performed ion channel by an azimuthally polarized (AP) laser pulse. An electron can gain significant energy due to the combined role of azimuthal polarization and the effect of an ion channel. A resonance occurs between the betatron oscillatory motion of the electron and AP laser pulse. The electron transverse momentum grows because of the betatron resonance, and this transverse momentum is then converted into the longitudinal momentum by →v×→B force. The effects of the initial conditions of an injected electron, laser pulse intensity, and ion channel density are investigated for efficient electron acceleration. If an ion channel with appropriate density is used, the resonance can be maintained for a longer time, and the final energy of electron increases. The results indicated that in the presence of ion channel the electron final energy is enhanced ten times compared to the absence of ion channel and reaches to about 1.5 GeV, for AP laser intensity I ≈ 3.42×1019 W/cm2 and ion channel density of ni ≈ 1.1×1016 1/cm3.

中文翻译：

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通过离子通道传播的方位偏振激光脉冲对电子的加速


本研究旨在通过方位角偏振 (AP) 激光脉冲仔细检查离子通道中电子的加速情况。由于方位角极化和离子通道效应的共同作用，电子可以获得显着的能量。电子电子感应加速器振荡运动和 AP 激光脉冲之间发生共振。由于电子感应加速器共振，电子横向动量增加，然后该横向动量通过 →v×→B 力转换为纵向动量。研究了注入电子初始条件、激光脉冲强度和离子通道密度的影响，以实现有效的电子加速。如果采用密度适当的离子通道，共振可以维持较长时间，电子的最终能量增加。结果表明，当AP激光强度I ≈ 3.42×1019 W/cm2、离子通道密度为ni时，存在离子通道时，电子最终能量比不存在离子通道时增强了10倍，达到约1.5 GeV。约1.1×1016 1/cm3。