Millijoule-level phase-stabilized few-optical-cycle infrared parametric source.
Ultrabroadband self-phase-stabilized near-IR pulses have been generated by difference-frequency generation of a filament broadened supercontinuum followed by two-stage optical parametric amplification. Pulses with energy up to 1.2 mJ and duration down to 17 fs are demonstrated. These characteristics make such a source suited as a driver for high-order harmonic generation and isolated attosecond pulse production.
Vozzi
C
C
National Laboratory for Ultrafast and Ultraintense Optical Science, CNR-INFM, Department of Physics, Politecnico di Milano, Milan, Italy. caterina.vozzi@polimi.it
Calegari
F
F
Benedetti
E
E
Gasilov
S
S
Sansone
G
G
Cerullo
G
G
Nisoli
M
M
De Silvestri
S
S
Stagira
S
S