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IR Hidden Patterns for Security Labels.
Yaroshenko, Vitaly; Larin, Artem; Syubaev, Sergey; Vazhenin, Ivan; Kustov, Pavel; Dolgintsev, Dmitry; Ageev, Eduard; Gurbatov, Stanislav; Maksimova, Alina; Novikova, Kristina; Babin, Sergey; Kozlov, Aleksey; Dostovalov, Alexandr; Kuchmizhak, Aleksandr; Zuev, Dmitry.
Afiliación
  • Yaroshenko V; School of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia.
  • Larin A; School of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia.
  • Syubaev S; Institute of Automation and Control Processes, Far Eastern Branch of RAS, Vladivostok 690041, Russia.
  • Vazhenin I; School of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia.
  • Kustov P; School of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia.
  • Dolgintsev D; School of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia.
  • Ageev E; School of Physics and Engineering, ITMO University, 197101 St. Petersburg, Russia.
  • Gurbatov S; Institute of Automation and Control Processes, Far Eastern Branch of RAS, Vladivostok 690041, Russia.
  • Maksimova A; Far Eastern Federal University, 690090 Vladivostok, Russia.
  • Novikova K; St. Petersburg Alferov University, Laboratory of Renewable Energy Sources, 194021 St. Petersburg, Russia.
  • Babin S; St. Petersburg Alferov University, Laboratory of Renewable Energy Sources, 194021 St. Petersburg, Russia.
  • Kozlov A; Institute of Automation and Electrometry of the SB RAS, 630090 Novosibirsk, Russia.
  • Dostovalov A; Far Eastern Federal University, 690090 Vladivostok, Russia.
  • Kuchmizhak A; Institute of Automation and Electrometry of the SB RAS, 630090 Novosibirsk, Russia.
  • Zuev D; Institute of Automation and Control Processes, Far Eastern Branch of RAS, Vladivostok 690041, Russia.
J Phys Chem Lett ; : 9714-9722, 2024 Sep 16.
Article en En | MEDLINE | ID: mdl-39284288
ABSTRACT
Authentication of a product's originality by anticounterfeiting labels represents a crucial point toward protection against forgery. Fast and scalable fabrication methods of original labels with a high degree of protection are in high demand for the protection of valuable goods. Here, we propose a simple strategy for fabrication of hidden security tags with IR luminescent readout by the direct femtosecond laser patterning of silicon-erbium-silicon sandwiched thin films. The choice of laser processing parameters makes possible the creation of random or quasi-regular self-organized surface nanotextures. The controlled laser-driven oxidation accompanying this process provides simultaneous regulation of the film's optical properties and spontaneous emission yield of the embedded Er atoms. The regimes are detected when optically similar patterned areas demonstrate different Er emission intensities, allowing us to create hidden security tags with facile readout at the C-band telecommunication wavelengths. The obtained results take another step toward the application of IR-luminescent erbium-based anticounterfeiting labels for covert and/or forensic security levels.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem Lett Año: 2024 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem Lett Año: 2024 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos