Schematic illustration of laser ablation with optical reflectance and acoustic pressure measurements (BS: beam splitter, M: mirror, PD: photodetector, IF: interference filter).
(a) Cross-sectional profiles of craters produced on aluminum during dry (top) and wet (bottom) ablations ( per pulse and 500 pulses) and (b) comparison of ablation rates for dry and wet conditions as a function of radiant exposure per pulse ( and 100 pulses).
Comparison of peak acoustic amplitudes for dry and wet ablation as a function of radiant exposure ( and single pulse).
Comparison of transient acoustic pressure (left-hand side column) and optical reflectance (right-hand side column) at various radiant exposures with a single pulse: (a) (top), (b) (wet damage threshold, middle), and (c) (bottom).
SEM images of aluminum for wet ablation with (a) and a single pulse and (b) per pulse and 100 pulses (arrows indicate the trace of bubbles).
Temperature distribution after the short laser pulse inside water and aluminum media at .
The properties of aluminum and water used for calculations (Refs. 23–25).
Article metrics loading...
Full text loading...