@article{801dedd0e05e49369b4006dde948d064,
title = "Meta-hologram-based authentication scheme employing a speckle pattern fingerprint",
abstract = "A concept for an optical holographic security tag is proposed and demonstrated. When illuminated with a laser beam, the image scattered from the tag projects a Quick Response code which encodes identifying information. The image also carries pseudorandom speckle noise, from which a unique speckle pattern “fingerprint” is derived. We show numerically that the tag is unclonable without access to a secret key - the starting conditions of the design algorithm. However, given the key, it is straightforward to reproduce a tag exhibiting the expected fingerprint. Several tags have been realized, implemented as plasmonic meta-holograms, and characterized experimentally. The robustness of the tag to fabrication error and its resilience to counterfeiting are studied in detail and demonstrated experimentally.",
author = "Y. Blau and O. Bar-On and Y. Hanein and A. Boag and J. Scheuer",
note = "Publisher Copyright: {\textcopyright} 2020 Optical Society of America.",
year = "2020",
month = mar,
day = "16",
doi = "10.1364/OE.388233",
language = "אנגלית",
volume = "28",
pages = "8924--8936",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "6",
}