STAMP for monitoring transient phenomena during laser materials processing

This talk introduces Sequentially Timed All-optical Mapping Photography (STAMP), a single-shot ultrafast imaging technique designed to capture transient events in laser materials processing. STAMP temporally modulates ultrashort laser pulses into a sequence of daughter pulses, each encoding image information, and spatially separates them for single-exposure capture. This allows for motion picture acquisition on femtosecond to nanosecond timescales without event repetition. We showcase real-time visualization of plasma formation and shockwave propagation during femtosecond laser ablation. These results highlight STAMP’s utility for analyzing and optimizing non-repetitive, ultrafast phenomena in advanced laser manufacturing.