1 November 2004 Hybrid encryption and decryption technique using microfabricated diffractive optical elements
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Optical Engineering, 43(11), (2004). doi:10.1117/1.1802272
Abstract
A hybrid encryption and decryption technique for optical information security is proposed. In this method, the iterative Fourier transform algorithm is employed to optimize the encrypted hologram and the decryption key as binary phase-only diffractive optical elements, which were fabricated by electron-beam lithography. In a simple optical setup, the optical decryption is implemented by superimposing the encrypted hologram and the decryption key. Numerical simulation and optical experiment confirm the proposed technique as a simple and easy implementation for optical decryption.
Xiaocong Yuan, Shaohua Tao, Wai Chye Cheong, Yuwen Chen, M. S. Lim, Jonathan Kenjin Moh, Anthony Tung Shuen Ho, "Hybrid encryption and decryption technique using microfabricated diffractive optical elements," Optical Engineering 43(11), (1 November 2004). http://dx.doi.org/10.1117/1.1802272
JOURNAL ARTICLE
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KEYWORDS
Holograms

Image encryption

Fourier transforms

Binary data

Diffractive optical elements

Microfabrication

Image restoration

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