11纳米阿秒脉冲序列的参量放大

Parametric amplification of attosecond pulse trains at 11 nm.

作者信息

Seres J, Seres E, Landgraf B, Ecker B, Aurand B, Hoffmann A, Winkler G, Namba S, Kuehl T, Spielmann C

机构信息

1] Institute of Optics and Quantum Electronics, Abbe Center of Photonics, Friedrich Schiller University, Max Wien Platz 1, 07743 Jena, Germany [2] Institute of Atomic and Subatomic Physics, Vienna University of Technology, Stadionalle 2, 1020 Vienna, Austria [3] Wolfgang Pauli Institute, CNRS UMI 2842, Nordbergstrasse 15, 1090 Vienna, Austria [4] Helmholtz Institute Jena, Fröbelstieg 3, 07743 Jena, Germany.

出版信息

Sci Rep. 2014 Mar 5;4:4254. doi: 10.1038/srep04254.

DOI:10.1038/srep04254

PMID:24594502

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3942697/

Abstract

We report the first experimental demonstration of the parametric amplification of attosecond pulse trains at around 11 nm. The helium amplifier is driven by intense laser pulses and seeded by high-order harmonics pulses generated in a neon gas jet. Our measurements suggest that amplification takes place only if the seed pulse-trains are perfectly synchronized in time with the driving laser field in the amplifier. Varying the delay, we estimate the durations of the individual extreme ultraviolet pulses within the train to be on the order of 0.2 fs. Our results demonstrate that strong-field parametric amplification can be a suitable tool to amplify weak attosecond pulses from non-destructive pump-probe experiments and it is an important step towards designing amplifiers for realization of energetic XUV pulses with sub-femtosecond duration using compact lasers fitting in university laboratories.

摘要

我们报道了在11纳米左右对阿秒脉冲序列进行参量放大的首次实验演示。氦放大器由强激光脉冲驱动，并由在氖气喷流中产生的高次谐波脉冲作为种子源。我们的测量结果表明，只有当种子脉冲序列在时间上与放大器中的驱动激光场完美同步时，放大才会发生。通过改变延迟，我们估计脉冲序列中各个极紫外脉冲的持续时间约为0.2飞秒。我们的结果表明，强场参量放大可以成为放大来自无损泵浦-探测实验的弱阿秒脉冲的合适工具，并且这是朝着设计放大器迈出的重要一步，该放大器可利用适合大学实验室的紧凑型激光器实现具有亚飞秒持续时间的高能极紫外脉冲。