Abstract
Shock waves generated by rear- and front-side infrared (λ=1.064 μm) laser irradiation of calcite were measured using time-resolved surface-plasmon resonance spectroscopy. The shock waves generated in the two cases are found to be distinctly different: Rear-side ablation gives rise to planar shock waves, while the front-side ablation is more nearly spherical. The observed differences are related to differing material-removal mechanisms at the two surfaces.
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