3. Shadow and refractometric methods

E.I. Mareev, F.V. Potemkin, V.M. Gordienko
Faculty of Physics and International Laser Center M.V. Lomonosov Moscow State University, Russia

Spatio-temporal structure of femtosecond filament and dynamics of filament-induced cavitational bubbles and shock waves

In the present work using shadow photography technique the dynamics of filament-induced shock waves and cavitation bubbles was investigated, additionally, the impact of the medium properties, laser pulse parameters and focusing geometry on the evolution of mechanical posteffects was demonstrated. It was shown, that mechanical post effects on nanosecond (shock waves) and microsecond (cavitation bubbles) timescale can be used for the recovery of processes on the femtosecond timescale (laser filamentation).
Full text paper