Polarization encoding using number of stacking sheets as additional key information

@article{Yamamoto2011PolarizationEU,
  title={Polarization encoding using number of stacking sheets as additional key information},
  author={Hirotsugu Yamamoto and Kenji Harada and Kimihito Matsushita and Takahito Imagawa and Shiro Suyama},
  journal={2011 ICO International Conference on Information Photonics},
  year={2011},
  pages={1-2}
}
Polarization encoding is one of encryption techniques that employ physical keys. Secret information is decoded without any calculations and can be distributed on social contacts. In this paper, we propose two types of compositions of polarization-encrypted sheets. A film-based type is composed of two quarter-wave retarder films that are attached together. The other type is composed of pieces of retarder film that are pasted on a glass substrate. We have developed polarization-encrypted sheets… CONTINUE READING