Numerical Modeling of the Spatial Profiles of High-order Harmonics

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Abstract

The far-field spatial distributions of high-order harmonics in an ionized medium have been investigated using a computer model that includes both the single atom effects and the collective effects of the medium. The results show that depletion of the non-linear medium due to ionization and radial phase variations across the gas jet cause broadening and complicated structures in the far-field spatial distributions. These phase variations are due to three factors: focusing, ionization, i.e. depletion of the non-linear medium and electron dispersion, and intensity-dependent phase variations of the atomic dipoles.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Atom- och molekylfysik och optik
Originalspråkengelska
Sidor (från-till)5693-5706
TidskriftJournal of Physics B: Atomic, Molecular and Optical Physics
Volym27
Utgåva nummer23
StatusPublished - 1994
PublikationskategoriForskning
Peer review utfördJa

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