Loss free shaping of few-cycle terawatt laser pulses

L. M. Railing, M. S. Le, C. M. Lazzarini +1

We demonstrate loss-free generation of 3 mJ, 1 kHz, few-cycle (5 fs at 750 nm central wavelength) double pulses with separation from 10 fs to 100 fs, using a helium filled hollow c…