Coherent electron scattering captured by an attosecond quantum stroboscope

被引：118

作者：

Mauritsson, J. ^{[1
,2
]}

Johnsson, P. ^{[1
,3
]}

Mansten, E. ^{[1
]}

Swoboda, M. ^{[1
]}

Ruchon, T. ^{[1
]}

L'Huillier, A. ^{[1
]}

Schafer, K. J. ^{[2
]}

机构：

[1] Lund Inst Technol, Dept Phys, SE-22100 Lund, Sweden

[2] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[3] FOM Inst AMOLF, NL-1098 SJ Amsterdam, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.100.073003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a quantum stroboscope based on a sequence of identical attosecond pulses that are used to release electrons into a strong infrared (IR) laser field exactly once per laser cycle. The resulting electron momentum distributions are recorded as a function of time delay between the IR laser and the attosecond pulse train using a velocity map imaging spectrometer. Because our train of attosecond pulses creates a train of identical electron wave packets, a single ionization event can be studied stroboscopically. This technique has enabled us to image the coherent electron scattering that takes place when the IR field is sufficiently strong to reverse the initial direction of the electron motion causing it to rescatter from its parent ion.

引用

页数：4

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