MACHINING METHOD USING LASER ABLATION, AND MATERIAL MACHINED BY THE MACHINING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technique for efficiently performing a high precision machining using a laser ablation.

SOLUTION: In the machining method of a material by means of the laser ablation using a pulse laser beam, an ablation threshold with a unit of J/cm2is plotted as a function of a laser pulse width with a unit of p second, in the logarithmic graph showing the relation thereof, the method is characterized in that a material having a nearly linear region with a gradient less than 0.5 is machined by a pulse laser beam with a laser pulse width within that region.

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