DataVXAdvanced MaterialsPaper
journal article·2020-09Open access

Chalcogenide Films: Laser Generation of Sub‐Micrometer Wrinkles in a Chalcogenide Glass Film as Physical Unclonable Functions (Adv. Mater. 38/2020)

Paloma Martinez, Irene Papagiannouli, Dominique Descamps, Stéphane Petit, Joël Marthelot, Anna Lévy, Baptiste Fabre, Jean‐Baptiste Dory, Nicolas Bernier, Jean‐Yves Raty, Pierre Noé, Jérôme Gaudin

Advanced Materials· Volume 32· Issue 38
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Source abstract

Abstract

“Pop-art” like patterns resulting from the interaction of a single laser pulse focused on a-Ge based chalcogenide thin film capped with a SiN layer are presented by Jérôme Gaudin and co-workers. These nondeterministic surface patterns, described in article number 2003032, are wrinkles with a height of less than 100 nm and sub-micrometer periodicity, which depends on the impinging laser fluence. Application as physical unclonable functions is demonstrated using a fast recognition algorithm.
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Research context

Ceramics & glasses

OpenAlex topics: Ocular and Laser Science Research · Laser Material Processing Techniques · Advanced Optical Imaging Technologies

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Affiliations

CELIA Université Bordeaux CEA CNRS UMR 5107 351 Cours de la Libération Talence F‐33405 France

Aix‐Marseille Université CNRS IUSTI Marseille F‐13013 France

Sorbonne Université CNRS Institut des NanoSciences de Paris INSP Campus Pierre et Marie Curie Paris Cedex 05 F‐75252 France

Université Grenoble Alpes CEA‐LETI 17 rue des Martyrs Grenoble Cedex 9 F‐38054 France

Physics of Solids Interfaces and Nanostructures CESAM Group University of Liege Allée du 6 Août 19 Sart‐Tilman 4000 Belgium

References

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