A Ulexite-based animation recording system by random reference patterns

Yuko Ishii; Misako Irisawa; Yoshihisa Takayama; Eriko Watanabe; Kashiko Kodate

doi:10.1117/12.650852

27 February 2006 A ulexite-based animation recording system by random reference patterns

Yuko Ishii, Misako Irisawa, Yoshihisa Takayama, Eriko Watanabe, Kashiko Kodate

Proceedings Volume 6136, Practical Holography XX: Materials and Applications; 61360N (2006) https://doi.org/10.1117/12.650852
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

We propose a simple, compact and high-security holographic optical memory system using Ulexite in order to produce random patterns of reference beam. 100 hologram multiplexing was achieved by multiplexing exposure, rotating Ulexite by 0.2 degrees every time with LiNbO₃ crystal as a recording medium. Moreover, with this system, animation readout images can play for approximately 8 seconds by continuous rotation of Ulexite. As a natural stone, the exactly same Ulexite is very difficult to be found or replicated. Basic experimental results show that Ulexite can be used as a security key for its image-reproducibility and BER calculations.

Citation Download Citation

Yuko Ishii, Misako Irisawa, Yoshihisa Takayama, Eriko Watanabe, and Kashiko Kodate "A ulexite-based animation recording system by random reference patterns", Proc. SPIE 6136, Practical Holography XX: Materials and Applications, 61360N (27 February 2006); https://doi.org/10.1117/12.650852

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