Random encoded reference beam for secure data storage in a holographic memory

Vladimir B. Markov; David C. Weber

doi:10.1117/12.405847

Translator Disclaimer

2 November 2000 Random encoded reference beam for secure data storage in a holographic memory

Vladimir B. Markov, David C. Weber

Author Affiliations +

Proceedings Volume 4113, Algorithms and Systems for Optical Information Processing IV; (2000) https://doi.org/10.1117/12.405847
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A method is presented to store biometric and/or other important information on an ID card in the form of a Card Hologram that cannot be read or duplicated without the use of a special Key Hologram that is secured inside of an automated reader. The Key Hologram produces the unique wavefront required to release the information contained in a complex, 3- D diffraction pattern recorded in a volume hologram attached to the card. Experimental results are presented in which the image of an Air Force resolution target are recorded and reconstructed in a volume material using a random speckle wavefront and that cannot be viewed using a simple wavefront such as a collimated or diverging laser beam.

Citation Download Citation

Vladimir B. Markov and David C. Weber "Random encoded reference beam for secure data storage in a holographic memory", Proc. SPIE 4113, Algorithms and Systems for Optical Information Processing IV, (2 November 2000); https://doi.org/10.1117/12.405847

ACCESS THE FULL ARTICLE