Encryption based on vector wave holography
Toyohiko Yatagai, Takanori Ochiai, Daisuke Barada · Journal of Optics · 2012
Polarization holograms are used for encryption in high density optical mass-storage systems. Selection of polarization in object and reference beams in polarization holograms performs the encryption. The principles of polarization holography are discussed and experiments on polarization encryption are presented.