Single isolated attosecond pulse from multicycle lasers.
We propose a new experimental scheme to produce clean isolated pulses lasting a few hundreds of attoseconds. It is based on high harmonics generation and uses the polarization gating technique combined with the ionization dynamics and the spatial filtering provided by the three-dimensional field propagation. The proposed method is easy to implement, robust against laser parameter fluctuations, and shows to be effective up to a 25 fs pulse duration.
Altucci
Carlo
C
CNISM--Dipartimento di Scienze Fisiche, Universita di Napoli Federico II, Napoli, Italy.
Esposito
Rosario
R
Tosa
Valer
V
Velotta
Raffaele
R