Fig. 3: Relative reflectivity change in the spallation and phase explosion regime.
From: Comparison of ultrashort pulse ablation of gold in air and water by time-resolved experiments

ΔR/R0 is depicted for irradiation with peak fluences of 1.5 ∙ Φthr (full squares) and 3.0 ∙ Φthr (open circles) in air (black solid lines and symbols) and water (blue dotted lines and symbols)