| 摘要 |
PURPOSE: A laser marking method and apparatus using the same are provided to not cause microcracking and suit for marking on a hard transparent material. CONSTITUTION: The laser marking method comprises the steps of: disposing a specimen of a target material while providing a space from a specimen of a material which can be marked; directing, onto the target material, an irradiation beam having an energy fluence greater than the ablation threshold of the target material so that a part of the target material is ablated and consequently is thrown up onto the surface of the material which can be marked; and exposing the surface of the material, which can be marked, to an irradiation beam having an energy fluence of less than the ablation threshold of the material which can be marked to develop interaction between the ablated material and the surface of the material which can be marked, thereby marking the surface of the material, which can be marked, with the ablated material. |
