Statistical analysis of speckle fields in digital laser monitoring of the microstructure of paper

Influence of paper whiteness and luminescent background on visibility of security features on papers and documents

“…materials and fillers. One of the ways for controlling the luminescent background of the paper base could be to use the method for plasma-radio wave treatment of capillary-porous materials that was developed at the Institute of Physics, National Academy of Sciences of Belarus, for controlled rearrangement of the spatial ordering, supramolecular structure, and correlation scales of their internal microscopic heterogeneities that change the optical properties of the materials [9][10][11].…”