Reproducibility of artificial multiple scattering media

Evangelos Marakis, Wouter van Harten, Ravitej Uppu, Pepijn W.H. Pinkse Pinkse

Research output: Contribution to conferencePosterOther research output


State of the art authentication systems depend on physical unclonable functions (PUF), physical keys that are assumed unclonable due to technological constraints. Scattering media are considered as ideal optical PUFs, because when shined by coherent illumination a unique random interference pattern is formulated.
This response is called speckle pattern and is depended on the illumination conditions and the scattering medium itself. The assumption of unclonability relies on the notion that a speckle pattern is extremely sensitive to the exact location and shape of the scatterers. We attempt to falsify this assumption by investigating if direct laser writing (DLW) technique has the potential to reproduce a scattering medium.
Original languageEnglish
Publication statusPublished - 11 Nov 2016
Event40th Annual Meeting NNV AMO Lunteren 2016 - Lunteren, Netherlands
Duration: 11 Oct 201612 Oct 2016
Conference number: 40


Conference40th Annual Meeting NNV AMO Lunteren 2016


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