Abstract:We report a new phenomenon, formation of microstructures, observed at multipulsed nanosecond laser ablation of liquid metals (Ga, In, Sn-Pb alloy, Wood's metal). Laser irradiation of liquid metal targets was carried out in a gas chamber equipped with a heater. In contrast to vacuum conditions or an inert atmosphere when a crater is formed which is healed after termination of irradiation, ablation in a reactive ambient gas (air, nitrogen, sulfur hexafluoride, nitrogen trifluoride) leads to a horn-like structure… Show more
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