标题： 准单能多GeV电子在等离子体波导中的加速 显示英文标题

标题： Quasi-monoenergetic multi-GeV electron acceleration in a plasma waveguide

摘要： 激光等离子体加速器为传统加速器提供了一种有前景的替代方案。 为了充分利用等离子体场的极端振幅并产生高质量的束流，需要精确控制电子注入到加速结构中，同时有效引导激光脉冲以延长加速长度。 最近的研究已经证明，使用流体动力学光学场电离（OFI）等离子体通道可以实现有效的引导和加速。 这种引导技术还与受控电子注入相结合，使用50太瓦激光在千兆电子伏特级别产生了高质量的电子束。 本研究将这些结果扩展到更高的激光能量，展示了在拍瓦级激光下产生准单色电子束的能力，其峰值能量超过2千兆电子伏特。 显示英文摘要

摘要： Laser-plasma accelerators present a promising alternative to conventional accelerators. To fully exploit the extreme amplitudes of the plasma fields and produce high-quality beams, precise control over electron injection into the accelerating structure is required, along with effective laser pulse guiding to extend the acceleration length. Recent studies have demonstrated efficient guiding and acceleration using hydrodynamic optically field-ionized (OFI) plasma channels. This guiding technique has also been combined with controlled electron injection to produce high-quality electron beams at the GeV level using a 50 TW laser. The present work extends these results to higher laser energies, demonstrating the generation of quasi-monoenergetic electron beams with peak energies exceeding 2 GeV, for a PW-class laser.