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Related Experiment Video

Updated: May 7, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
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Holographic display based on a spatial DMD array.

Jung-Young Son, Beom-Ryeol Lee, Oleksii O Chernyshov

    Optics Letters
    |October 10, 2013
    PubMed
    Summary

    Digital micromirror devices (DMDs) reconstruct holographic images by using their pixel patterns as gratings. A 2x5 DMD array successfully created a large, detailed image without extra optics.

    Area of Science:

    • Optics
    • Holography
    • Digital Micromirror Devices

    Background:

    • Digital micromirror devices (DMDs) function as programmable 2D blazed gratings, influencing the image space through diffraction patterns.
    • Holographic image reconstruction is a key application area for DMD technology.

    Purpose of the Study:

    • To investigate the spatial multiplexing of holographic images using a 2x5 DMD array.
    • To reconstruct a large-format image (100 mm x 20 mm) without additional optical components.

    Main Methods:

    • Utilizing a 2x5 array of DMD chips aligned on a board.
    • Leveraging the inherent diffraction properties of the DMD's 2D pixel pattern for image reconstruction.
    • Spatially multiplexing individual image pieces from each DMD chip.

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    Main Results:

    • Successfully reconstructed a 100 mm x 20 mm image.
    • Each DMD chip contributed a 20 mm (width) x 10 mm (height) image segment.
    • The reconstructed image, despite some noise, faithfully represented the original object.

    Conclusions:

    • A 2x5 DMD array can achieve large-format holographic image reconstruction without external optics.
    • The method demonstrates the potential for scalable holographic displays using DMD technology.