TW-class sub-2-cycle post-compression of Ti:Sapphire laser pulses in a gas-filled multipass cell
Abstract
We report on the nonlinear temporal post-compression of 7 mJ sub-40 fs pulses from a commercial kHz Ti:Sapphire laser down to a record 4 fs duration (1.5 optical cycle) in a compact single-stage gas-filled multipass cell, with 60% overall compression efficiency.
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