A special interaction between pulsed Nd:YAG-laser and boiling melt was studied.
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The interaction zone was observed and analysis based upon high speed imaging.
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Switching to pulse low enable surface tension to drag the melt back toward the top.
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pulse high drilling a hole through bulk of melt to developed later a cut instead.
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pulse low smoothing the front waves and generate semi-torus-like Catanoid shape.
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