Figure 6
(a) Laser-induced cavitation dynamics in water and ethylene glycol mixture (70:30%) containing gold nanoparticles at a concentration of 1.3 × 1012 ł−1 for a tightly focused Bessel beam (θ = 16.5°) of 5 ps pulse duration and 6 μJ input energy. The dynamics is observed in OTM MSD and PCM MSD modes as indicated on the figure. Note that alternate columns represent OTM and PCM images respectively. (b) Dimensional dynamics of cavity evolution along the vertical axis. (c) Dimensional dynamics of cavity evolution along the horizontal longitudinal axis. A line section was vertically, respectively horizontally made through the bubble center at each delay time and the results were concatenated to form the image. The time was plotted on a logarithmic scale. The time labels are given with a tolerance of 10%.
