  We report on the nonlinear temporal compression of mJ energy pulses from a
Ti:Sa chirped pulse amplifier system in a multipass cell filled with argon. The
pulses are compressed from 30 fs down to 5.3 fs, corresponding to two optical
cycles. The post-compressed beam exhibits excellent spatial quality and
homogeneity. These results pave the way to robust and energy-scalable
compression of Ti:Sa pulses down to the few-cycle regime.
