Статья

Coherent Electron Scattering Captured by an Attosecond Quantum Stroboscope

J. MauritssonDepartment of Physics, Lund Institute of Technology, P. O. Box 118, SE-221 00 Lund, SwedenP. JohnssonDepartment of Physics, Lund Institute of Technology, P. O. Box 118, SE-221 00 Lund, SwedenErik ManstenDepartment of Physics, Lund Institute of Technology, P. O. Box 118, SE-221 00 Lund, SwedenM. SwobodaDepartment of Physics, Lund Institute of Technology, P. O. Box 118, SE-221 00 Lund, SwedenThierry RuchonDepartment of Physics, Lund Institute of Technology, P. O. Box 118, SE-221 00 Lund, SwedenA. L’HuillierDepartment of Physics, Lund Institute of Technology, P. O. Box 118, SE-221 00 Lund, SwedenKenneth J. SchäferDepartment of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA

2008en

ABI

Аннотация

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.

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Идентификаторы

DOI: 10.1103/physrevlett.100.073003

Цитирования и источники

Цитирований: 3Использованных источников: 0

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