Coding of Non‐Linear White‐Light Luminescence from Gold‐Silicon Structures for Physically Unclonable Security Labels - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Advanced Functional Materials Année : 2022

Coding of Non‐Linear White‐Light Luminescence from Gold‐Silicon Structures for Physically Unclonable Security Labels

Résumé

Luminescent security labels are effective platform for protection of consumer goods from counterfeiting. Despite this the lifetime of such security technology is limited due to narrow-band photoluminescent features of the label elements. In this paper, we propose a novel concept for the application of non-linear white light luminescence achieved in hybrid metal-semiconductor structures fabricated by the direct fs-laser writing for the creation of physically unclonable security labels. We demonstrate a close connection between internal composition of fabricated hybrid structures controlled on the fabrication stage and their non-linear optical signals. We show that application of decorrelation procedure based on discrete cosine transform as well as polar codes for the label coding can overcome the problem of the white-light photoluminescent spectra correlation. The applied fabrication approach and coding strategy are applied for physically unclonable label creation with high degree of device uniqueness (up to 99%) and bit uniformity (close to 0.5). Demonstrated results remove the barriers for the application of white light luminescent nanoobjects for physically unclonable label creation.
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Dates et versions

hal-03796777 , version 1 (04-10-2022)

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Ekaterina Yu Ponkratova, Eduard I Ageev, Peter V Trifonov, Pavel I Kustov, Martin Sandomirskii, et al.. Coding of Non‐Linear White‐Light Luminescence from Gold‐Silicon Structures for Physically Unclonable Security Labels. Advanced Functional Materials, 2022, 32 (41), pp.2205859. ⟨10.1002/adfm.202205859⟩. ⟨hal-03796777⟩
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