Characterization of the early and late dynamics of laser-induced cavitation bubbles in the frame of pulsed laser ablation in liquid applicat

Laser-induced cavitation bubbles are centrally important in all applications of pulsed laser ablation in liquid (PLAL), such as laser shock peening (LSP) or nanoparticle synthesis, and a thorough understanding of their dynamics is therefore crucial to improving their effectiveness. Despite the use of various optical imaging techniques in the study of laser-induced cavitation bubbles, it is still challenging to capture high temporal resolution images of the initial stage of bubble formation and final stage of bubble collapse at its minimum size, because these techniques are all affected by multiple scattering that can obscure the inner details. The present work aims to advance the understanding of PLAL by providing a detailed experimental observation of laser-produced cavitation bubbles close to a rigid boundary, through multi-frame MHz XPCI with high temporal and spatial resolution.