Time-resolved dynamics and characteristics of laser-generated nanobubbles in a colloidal suspension

This experimental approach enabled us to reconstruct initial nanobubble sizes right after generation and their time evolution through the initial oscillation, recognizing the physical mechanisms behind the measured nanobubble properties. Threshold for nanobubble generation as well as nanobubble dissolution time as a function of colloid size was determined, and the efficiency of nanobubble generation with respect to the laser light intensity was measured. We demonstrate the capability to measure both the initial nanosecond scale nanobubble dynamics after laser-generation and their later dissolution on micro- to millisecond scales with a single method. The study advances the field of laser-generated nanobubbles with further implications for controlled nanobubble seeding in various environments.