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Study on real-time z-scanning of multiple-pulse laser ablation of metal applied in roll-printed electronics
Optical Materials Express ( IF 2.8 ) Pub Date : 2021-01-25 , DOI: 10.1364/ome.416657
Le Phuong Hoang , Phuong Thao Nguyen , Thi Kim Cuc Nguyen , Toan Thang Vu , Xuan Binh Cao

The interaction between a metal surface and multiple pulses was investigated to achieve optimal focusing conditions during ultrashort laser ablation. We report a simple theoretical expression of morphological changes in the ablated channel and demonstrate its advantage in positioning the interactive surface at the focus in real time during multiple-pulse laser ablation of a metallic material. Experimental results on the ablation depth for zinc, nickel, and copper show that the combination of a dynamic focusing system and a theoretical formula of ablation-cycle-dependent ablation depth enables one to control the shape of ablated channels. This model can be applied to a variety of high-efficiency ablation systems and may play an essential role in the development of a high-precision ablation system for the curved surfaces in highly scaled metal gravures used in printed electronics, which currently present challenges for engineers and technicians.

中文翻译:

辊印电子中金属多脉冲激光烧蚀的实时z扫描研究

研究了金属表面和多个脉冲之间的相互作用,以实现超短激光烧蚀过程中的最佳聚焦条件。我们报告了在消融通道中形态变化的简单理论表达,并证明了在金属材料的多脉冲激光消融过程中实时将交互式表面定位在焦点上的优势。锌,镍和铜的烧蚀深度的实验结果表明,动态聚焦系统与取决于烧蚀循环的烧蚀深度的理论公式的结合使人们能够控制烧蚀通道的形状。
更新日期:2021-02-01
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