Authentication in the THz domain: a new tool to fight couterfeiting - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année :

Authentication in the THz domain: a new tool to fight couterfeiting

(1) , , (1) , (2) , (2) , (2) , (2) , (1)
1
2

Résumé

Introduction: In the present work, we propose a new approach based on the use of the spectral signature of diffraction gratings engraved on one side of smart cards to be authenticated. The etched substrate acts as a dielectric waveguide associated to a 1D diffraction grating [1]. When the coupling conditions are verified, the reflected and transmitted THz spectra exhibit extinction lines (m-lines) that can be used as a broadband and rich spectral signature. For a given incident angle, the number of m-lines, their frequency positions and depth depend on the geometrical dimensions of the structure [2]. Hence, a unique etching scheme leads to a unique spectral signature. We first focused on simulations and experimental validation of the proposed authentication method that we would present to the 9 th THz days.
Fichier principal
Vignette du fichier
hal-02014053v1.pdf (146.35 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02014053 , version 1 (05-03-2020)

Identifiants

  • HAL Id : hal-02014053 , version 1

Citer

Florent Bonnefoy, Maher Hamdi, Maxime Bernier, Nicolas Barbot, Romain Siragusa, et al.. Authentication in the THz domain: a new tool to fight couterfeiting. 9th THz days, Jun 2017, Dunkerque, France. ⟨hal-02014053⟩
63 Consultations
22 Téléchargements

Partager

Gmail Facebook Twitter LinkedIn More