We demonstrate a multicompartment, power-scalable beam-line design in which sub-40-fs, terawatt field waveforms are tailored in space and time for downstream pulse compression to few-cycle pulse widths attained right at the site where the intense laser field interacts with a target. An accurate field-waveform characterization performed at multiple locations along the beam path shows that, despite all the complexity of their upstream nonlinear electrodynamics, field waveforms shorter than three field cycles can be delivered to a laser–matter interaction site in such a system, enabling a vast class of ultrafast strong-field laser–matter interaction studies.

我们展示了一种多隔室、功率可缩放的光束线设计，其中亚 40-fs 的太瓦场波形在空间和时间上进行定制，以便将下游脉冲压缩为在强激光场相互作用的位置获得的几个周期脉冲宽度有一个目标。在沿光束路径的多个位置执行的精确场波形表征表明，尽管其上游非线性电动力学非常复杂，但可以将短于三个场周期的场波形传送到此类系统中的激光-物质相互作用位点，从而实现一大类超快强场激光-物质相互作用研究。