Demonstration of tunability of HOFI waveguides via start-to-end simulations
Demonstration of tunability of HOFI waveguides via start-to-end simulations
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DOI：
10.1103/physrevresearch.5.033112
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发表时间：
2023-05
影响因子：
4.2
通讯作者：
S. Mewes;G. Boyle;A. F. Pousa;R. Shalloo;J. Osterhoff;C. Arran;L. Corner;R. Walczak;S. Hooker;M. Th'evenet
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文献类型：
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作者：
S. Mewes;G. Boyle;A. F. Pousa;R. Shalloo;J. Osterhoff;C. Arran;L. Corner;R. Walczak;S. Hooker;M. Th'evenet
近年来，流体动力学光场离子化（HOFI）通道已经成为一种有前途的技术，以创建适合于在等离子体中引导紧聚焦激光脉冲的激光波导，如激光等离子体加速器所需的。虽然HOFI通道的实验进展不断取得，但基本机制和主要参数的作用在很大程度上仍未探索。在这项工作中，我们提出了一个开始到结束的模拟流水线的HOFI通道的形成和由此产生的引导属性，并使用它来探索底层的物理和可调谐性的HOFI通道。这种方法是对实验测量基准。HOFI通道在很宽的参数范围内具有优异的导光性能，使其成为激光等离子体加速器的一种有前途的可调谐波导选择。
In recent years, hydrodynamic optical-field-ionized (HOFI) channels have emerged as a promising technique to create laser waveguides suitable for guiding tightly-focused laser pulses in a plasma, as needed for laser-plasma accelerators. While experimental advances in HOFI channels continue to be made, the underlying mechanisms and the roles of the main parameters remain largely unexplored. In this work, we propose a start-to-end simulation pipeline of the HOFI channel formation and the resulting guiding properties, and use it to explore the underlying physics and the tunability of HOFI channels. This approach is benchmarked against experimental measurements. HOFI channels are shown to feature excellent guiding properties over a wide range of parameters, making them a promising and tunable waveguide option for laser-plasma accelerators.