Publications

Random Laser Physical Unclonable Function

Scrymgeour, David S.; Shank, Joshua S.; Kaehr, Bryan J.; Henry, Michael D.; Spoerke, Erik D.; Smith, Sean S.; Andreasen, Jonathan A.; Brown, Roger B.; Roberston, Wesley R.

We report on the fabrication and characterization of nanocrystalline ZnO films for use as a random laser physical unclonable function (PUF). Correlation between processing conditions and film microstructure will be made to optimize the lasing properties and random response. We will specifically examine the repeatability and security of PUFs demonstrated in this novel 3 system. This demonstration has promise to impact many of Sandia's core missions including counterfeit detection. 4 4