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arXiv 1111.4172physics.atom-phphysics.comp-ph
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用阿秒拖尾探测散射相移

Probing scattering phase shifts by attosecond streaking

Renate Pazourek, Stefan Nagele, Katharina Doblhoff-Dier, Johannes Feist, Christoph Lemell, Karoly Tökési, Joachim Burgdörfer

摘要:

阿秒拖尾是阿秒科学中最基本的过程之一,允许在能量域上映射时间(即相位)信息。我们表明,在单粒子水平上的阿秒条纹时间移位包含光谱相位信息与Eisenbud-Wigner-Smith(EWS)的时间延迟,提供的条纹红外场的影响是适当的占。虽然短程电位的条纹相移与相关的EWS延迟一致,但库仑电位需要特别注意。我们表明,出射电子和组合库仑和红外激光场之间的相互作用导致条纹相移,可以描述的经典。

英文摘要:

Attosecond streaking is one of the most fundamental processes in attosecond science allowing for a mapping of temporal (i.e. phase) information on the energy domain. We show that on the single-particle level attosecond streaking time shifts contain spectral phase information associated with the Eisenbud-Wigner-Smith (EWS) time delay, provided the influence of the streaking infrared field is properly accounted for. While the streaking phase shifts for short-ranged potentials agree with the associated EWS delays, Coulomb potentials require special care. We show that the interaction between the outgoing electron and the combined Coulomb and IR laser fields lead to a streaking phase shift that can be described classically.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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