Three-dimensional shifting selectivity of decryption phase mask in a double random phase encoding holographic memory

Wei-Chia Su, Chien Hong Lin

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We have theoretically analyzed and experimentally investigated the three-dimensional shifting selectivity of the decryption phase mask in a double random phase encoding holographic memory. The lateral shifting selectivity of the decryption phase mask in the system depends on not only its correlation length but also the dimension of recording medium and the distance between phase mask and the hologram. The longitudinal diffraction selectivity is inverse proportional to the dimension of recording medium and proportional to the distance between hologram and the phase mask. The diffraction selectivity derived in this paper offers important information for alignment and reposition of the decryption phase key in practical optical implementations.

Original languageEnglish
Pages (from-to)29-41
Number of pages13
JournalOptics Communications
Volume241
Issue number1-3
DOIs
Publication statusPublished - 2004 Nov 1

Fingerprint

Masks
coding
masks
selectivity
Data storage equipment
Holograms
Diffraction
recording
diffraction
alignment

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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Three-dimensional shifting selectivity of decryption phase mask in a double random phase encoding holographic memory. / Su, Wei-Chia; Lin, Chien Hong.

In: Optics Communications, Vol. 241, No. 1-3, 01.11.2004, p. 29-41.

Research output: Contribution to journalArticle

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AB - We have theoretically analyzed and experimentally investigated the three-dimensional shifting selectivity of the decryption phase mask in a double random phase encoding holographic memory. The lateral shifting selectivity of the decryption phase mask in the system depends on not only its correlation length but also the dimension of recording medium and the distance between phase mask and the hologram. The longitudinal diffraction selectivity is inverse proportional to the dimension of recording medium and proportional to the distance between hologram and the phase mask. The diffraction selectivity derived in this paper offers important information for alignment and reposition of the decryption phase key in practical optical implementations.

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