Specificity of micro- and nanoproducts of titanium laser ablation in pure water

Laser ablation of titanium in distilled water at high and low power densities of copper vapour laser beam in the focal spot on a target surface is experimentally studied. Ablation regimes with different pulsed energy inputs and target irradiation times are investigated. The morphology and elemental and phase compositions of micro- and nanoaggregates obtained in different irradiation regimes are studied using electron microscopy, X-ray diffraction analysis, and Raman spectroscopy. The ablation products are found to be practically totally in the X-ray amorphous state.