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Method of marking metal objects using laser ablation

autorzy: Pavel Kožmín, Ph.D. Ing. Adam Čermák, Ph.D. Ing. Martin Šorm Ing. Jiří Syrovátka Prof. Tomáš Polcar Ing. Martin Daněk, Ph.D.

Metal object has multilayer film. The top layer is removed with laser system in area on the object and laser-induced periodic surface structure (LIPSS) is created on the bottom layer. The marking can be used for identifying items. It can replace markings as barcodes, QR codes, holographic stickers.