Engineering and Technology

Gap-enhanced Raman tags for physically unclonable anticounterfeiting labels

Y. Gu, C. He, et al.

Discover the innovative world of physically unclonable function (PUF) labels crafted with gap-enhanced Raman tags (GERTs) by renowned researchers Yuqing Gu, Chang He, Yuqing Zhang, Li Lin, Benjamin David Thackray, and Jian Ye. These labels not only provide unparalleled intensity enhancement and photostability but also boast an extraordinary encoding capacity. Read about their groundbreaking authentication experiments that underline the robustness and security of this PUF system.

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Abstract

This paper demonstrates physically unclonable function (PUF) labels fabricated using gap-enhanced Raman tags (GERTs). These labels, created through drop-casting aqueous GERTs, offer strong intensity enhancement and ultra-high photostability. High-speed readout using a confocal Raman system and coarse-grained coding methods enable a three-dimensional encoding capacity exceeding 3 × 10¹⁵⁰⁵¹. Authentication experiments confirm the robustness and security of the PUF system.

Publisher

Nature Communications

Published On

Jan 24, 2020

Authors

Yuqing Gu, Chang He, Yuqing Zhang, Li Lin, Benjamin David Thackray, Jian Ye