News applications in authentication and traceability using ultrafast laser marking

B. Dusser; Z. Sagan; A. Foucou; M. Jourlin; E. Audouard

doi:10.1117/12.816886

24 February 2009 News applications in authentication and traceability using ultrafast laser marking

B. Dusser, Z. Sagan, A. Foucou, M. Jourlin, E. Audouard

Proceedings Volume 7201, Laser Applications in Microelectronic and Optoelectronic Manufacturing VII; 72010V (2009) https://doi.org/10.1117/12.816886
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

This work presents a new method for ultra-fast laser marking using nano-structures as well as a suitable method of reading. These nano-structures, called ripples, are an irregular grating with a controllable orientation. It is possible to observe these ripples and theirs orientations with differents acquisitions systems. The one we chose to use is a scanner. It is possible to have an ripples' orientation matching one of the colors in the image acquisition. This feature allows us to consider new applications for marking and new types of identifying code.

Citation Download Citation

B. Dusser, Z. Sagan, A. Foucou, M. Jourlin, and E. Audouard "News applications in authentication and traceability using ultrafast laser marking", Proc. SPIE 7201, Laser Applications in Microelectronic and Optoelectronic Manufacturing VII, 72010V (24 February 2009); https://doi.org/10.1117/12.816886

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