The collision of an electron against a repulsive potential in the presence of a laser field is investigated. It is found that a sufficiently strong laser field forces the electron to remain in the neighbourhood of the repulsive potential causing bremsstrahlung. By appropriately filtering the emitted signal, an electron in the presence of a repulsive potential is capable of generating attosecond pulses.
|Numero di pagine||7|
|Rivista||JOURNAL OF PHYSICS. B, ATOMIC MOLECULAR AND OPTICAL PHYSICS|
|Stato di pubblicazione||Published - 2008|
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