Speckle data

The project uses measurements on optical PUFs performed by Ravitej Uppu from the Complex Photonic Systems group at the university of Twente. These speckle patterns are publicly available at: (will be available after the challenge is over).

Experimental configuration:
Sample: ZnO nanoparticulate medium (~13 micrometer thick).
Wavelength: 790nm
SLM pixel pitch: 20 micrometers
Transmission collected with a 0.9 NA objective.
Image size on the camera: ~700 pixels.
Camera pixel pitch: 6.45 micrometers.
Approximate image size ~ 4.5 mm.
Approximate size on transmitted speckle at the back of the sample: ~71 micrometers.
Exposure time: ~1470 microseconds (horizontal polarization)