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Coherent electron scattering captured by an attosecond quantum stroboscope.

Författare:
Publiceringsår: 2008
Språk: Engelska
Sidor:
Publikation/Tidskrift/Serie: Physical review letters
Volym: 100
Nummer: 7
Dokumenttyp: Artikel
Förlag: American Physical Society

Sammanfattning

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.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 0031-9007

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