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Applied Optics

Applied Optics


  • Vol. 43, Iss. 8 — Mar. 10, 2004
  • pp: 1728–1733

Duplication of phase key for random-phase-encrypted volume holograms

Wei-Chia Su, Ching-Cherng Sun, Yu-Cheng Chen, and Yueh Ouyang  »View Author Affiliations

Applied Optics, Vol. 43, Issue 8, pp. 1728-1733 (2004)

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Holographic memory encrypted by an optical random-phase key and decrypted by either the original phase key or a duplicate key is proposed and demonstrated. The duplicate key is made by recording the encryption wave front with angle multiplexing during writing of the hologram. The amount of three-dimensional shifting that is tolerable in the duplicate key is analyzed.

© 2004 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.7330) Holography : Volume gratings
(190.5330) Nonlinear optics : Photorefractive optics
(210.0210) Optical data storage : Optical data storage
(210.2860) Optical data storage : Holographic and volume memories

Original Manuscript: November 17, 2003
Revised Manuscript: November 17, 2003
Published: March 10, 2004

Wei-Chia Su, Ching-Cherng Sun, Yu-Cheng Chen, and Yueh Ouyang, "Duplication of phase key for random-phase-encrypted volume holograms," Appl. Opt. 43, 1728-1733 (2004)

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