Holographic implementation of a two-level authorization protocol using hidden images in a photorefractive crystal

Authors

Raphael A. Guerrero ⋅ PH National Institute of Physics, University of the Philippines Diliman and Department of Physics, Ateneo de Manila University
Loujie Senatin ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

An optical system for two-level verification of identity is presented. Photorefractive holography is used to hide an image as a secondary security precaution. Experimental results display true concealment and robustness against unauthorized access.

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Issue

2003: Proceedings of the 21st Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2003-PB-16

Section

Poster Session PB

Published

2003-10-22

How to Cite

[1]

RA Guerrero and L Senatin, Holographic implementation of a two-level authorization protocol using hidden images in a photorefractive crystal, Proceedings of the Samahang Pisika ng Pilipinas 21, SPP-2003-PB-16 (2003). URL: https://proceedings.spp-online.org/article/view/SPP-2003-PB-16.