Activity: Talk or presentation › Oral presentation
Optical multiple scattering media have all the characteristics of a physical unclonable function (PUF). On this account, there is a number of authentication systems relying on such media [1,2,3]. The unclonability assumption depends on technological constraints. We attempt to falsify this assumption by creating deterministic scattering medium via direct laser writing (DLW) . We predict that DLW can create and reproduce a small multiple scattering medium.
References  S. A. Goorden, M. Horstmann, A. P. Mosk, B. Škorić, and P. W. H. Pinkse, Optica 1, 421 (2014).  R. Pappu, Science 297, 2026 (2002).  H. Zhang and S. Tzortzakis, Appl. Phys. Lett. 108, 211107 (2016).  J. Fischer and M. Wegener, Laser Photon. Rev. 7, 22 (2013).