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Backside emission leaky-mode modulators.

Stephen McLaughlin, Andrew Henrie, Scott Gneiting

    Optics Express
    |October 19, 2017
    PubMed
    Summary
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    Researchers developed a new leaky-mode modulator with backside emission capability. This advancement enables larger output apertures, paving the way for transparent holographic near-eye displays.

    Area of Science:

    • Optoelectronics
    • Photonics
    • Display Technology

    Background:

    • Leaky-mode modulators are crucial components in optical systems.
    • Current modulators face limitations in output aperture size.
    • Near-eye displays require efficient and compact light modulation.

    Purpose of the Study:

    • To introduce an advancement in leaky-mode modulators for backside emission.
    • To enable arbitrary increases in the usable output aperture of modulators.
    • To facilitate the development of transparent, holographic, direct-view near-eye displays.

    Main Methods:

    • Incorporation of a high spatial frequency surface relief grating (~300 nm period) onto the modulator's backside.
    • Utilizing backside emission to overcome aperture limitations.

    Related Experiment Videos

  • Theoretical analysis of the impact on angular deflection.

    • Main Results:

    • Demonstrated a method for achieving backside emission in leaky-mode modulators.
    • Showcased a theoretical arbitrary increase in usable output aperture.
    • Identified angular deflection as a trade-off for increased aperture.

    Conclusions:

    • The developed leaky-mode modulator with backside emission is a significant advancement.
    • This technology enables the creation of transparent holographic near-eye displays.
    • Further research can optimize the trade-off between aperture size and angular deflection.