Laser-induced shock-wave-expanded nanobubbles in spherical geometry.

ABSTRACT: The secondary cavitation generation following laser-induced breakdown in aqueous media in spherical geometry, mimicking the geometry of the frontal part of the human eye, was studied. A numerical simulation of the shock wave propagation was performed, yielding peak-pressure maps, correctly predicting the location of the secondary cavitation onset for different shock wave source positions. The comparison between the simulation results and the experiments, performed with a high-precision, multiple-illumination technique, supports the suggested description of the nature of the secondary cavitation onset. It is shown that large transient negative pressures are created at the location of the acoustic image of the shock wave source, which is different from the optical focus. After the passage of

SUBMITTER: Horvat D 

PROVIDER: S-EPMC9489810 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature