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Shift multiplexing with spherical reference waves.

G Barbastathis, M Levene, D Psaltis

    Applied Optics
    |November 19, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Shift multiplexing enhances holographic disk storage. This study analyzes its performance using spherical wave reference beams, detailing key metrics like selectivity and density.

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    Area of Science:

    • Optics and Photonics
    • Information Storage

    Background:

    • Holographic data storage offers high density.
    • Shift multiplexing is a promising technique for holographic memories.

    Purpose of the Study:

    • To characterize the performance of shift multiplexing in holographic storage.
    • To analyze the impact of spherical wave reference beams on holographic disk performance.

    Main Methods:

    • Theoretical derivation of shift selectivity, cross talk, exposure schedule, and storage density.
    • Experimental verification of theoretical predictions for shift-multiplexed memories.

    Main Results:

    • Quantified shift selectivity and cross talk for spherical wave reference beams.
    • Determined optimal exposure schedules for maximizing storage density.
    • Experimental data validated theoretical models.

    Conclusions:

    • Shift multiplexing is a viable holographic storage method for holographic disks.
    • Spherical wave reference beams provide a robust method for performance characterization.