  Using shadow photography, we observed microsecond time scale evolution of
multiple cavitation bubbles, excited by tighty focused femtosecond laser pulse
in water under supercritical power regime (~100 Pcr). In these extreme
conditions high energy delivery into the microvolume of liquid sample leads to
creation of single filament which becomes a source of cavitation region
formation. When aberrations were added to the optical scheme the hot spots
along the filament axis are formed. At high energies (more than 40uJ) filaments
in these hot spots are fired and, as a result, complex pattern of cavitation
bubbles is created. The bubbles can be isolated from each other or build exotic
drop-shaped cavitation region, which evolution at the end of its life, before
the final collapse, contains the jet emission. The dynamics of the cavitation
pattern was investigated from pulse energy and focusing. We found that greater
numerical aperture of the focusing optics leads to greater cavitation area
length. The strong interaction between bubbles was also observed. This leads to
a significant change of bubble evolution, which is not yet in accordance with
Rayleigh model.
