Security authentication using phase-encoded nanoparticle structures and polarized light

Artur Carnicer*, Amir Hassanfiroozi, Pedro Latorre-Carmona, Yi-Pai Huang, Bahram Javidi

*Corresponding author for this work

研究成果: Article同行評審

43 引文 斯高帕斯(Scopus)

摘要

Phase-encoded nanostructures such as quick response (QR) codes made of metallic nanoparticles are suggested to be used in security and authentication applications. We present a polarimetric optical method able to authenticate random phase-encoded QR codes. The system is illuminated using polarized light, and the QR code is encoded using a phase-only random mask. Using classification algorithms, it is possible to validate the QR code from the examination of the polarimetric signature of the speckle pattern. We used Kolmogorov-Smirnov statistical test and Support Vector Machine algorithms to authenticate the phase-encoded QR codes using polarimetric signatures.

原文English
頁(從 - 到)135-138
頁數4
期刊Optics Letters
40
發行號2
DOIs
出版狀態Published - 15 一月 2015

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