Filamentary pulse shaping

filamentation arises for intense optical pulses propagate in transparent media by sustaining a spatial self-guiding regime and providing spectral broadening for efficient pulse compression down to a few cycles.

Propagation in Ar

The pulses with duration of 8.2 fs were detected after filamentary propagation of initial 35 fs pulsesin 1.2 m long cell filled with Ar at 1 bar.4-fold compression is demonstrated with efficiency of more than 50 % for single filament output