Polarization Effects in Attosecond Photoelectron Spectroscopy

被引：51

作者：

Baggesen, Jan Conrad ^{[1
]}

Madsen, Lars Bojer ^{[1
]}

机构：

[1] Aarhus Univ, Lundbeck Fdn, Theoret Ctr Quantum Syst Res, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.104.043602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the influence of polarization effects in streaking by combined atto- and femtosecond pulses. The polarization-induced terms alter the streaking spectrum. The conventional streaking spectrum, which maps to the vector potential of the femtosecond pulse, is modified by a contribution following the field instead. We show that polarization effects may lead to an apparent temporal shift that needs to be properly accounted for in the analysis. The effect may be isolated and studied by angle-resolved photoelectron spectroscopy from oriented polar molecules. We also show that polarization effects will lead to an apparent temporal shift of 50 as between photoelectrons from a 2p and 1s state in atomic hydrogen.

引用

页数：4

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