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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Routing light with different wavevectors using synthetic dimensions.

Xin Lyu, Kai Bai, Meng Xiao

    Journal of the Optical Society of America. A, Optics, Image Science, and Vision
    |June 10, 2024
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    Summary
    This summary is machine-generated.

    Synthetic dimensions in photonic crystals enable light routing from various directions. This novel approach offers miniaturized, integrated optical systems for applications like lidar.

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    Area of Science:

    • Photonics
    • Topological Physics
    • Optical Engineering

    Background:

    • Synthetic dimensions offer new ways to control light properties.
    • Previous work focused on concentrating light by frequency using synthetic dimensions.
    • Controlling light's incident direction is crucial for optical systems.

    Purpose of the Study:

    • To demonstrate light routing from different incident directions using synthetic dimensions.
    • To explore the potential of photonic crystals for directional light control.
    • To offer a compact alternative to traditional optical systems.

    Main Methods:

    • Utilizing an interface of two different photonic crystals.
    • Introducing a synthetic dimension (ξ) by adjusting the photonic crystal termination.
    • Establishing a link between the synthetic dimension and interface states for light collection.

    Main Results:

    • Successfully demonstrated routing of light based on its incident direction.
    • Showcased the ability to collect light from specific directions by designing the synthetic dimension.
    • Achieved directional light routing within a few lattice sites of photonic crystals.

    Conclusions:

    • Synthetic dimensions can effectively route light from different incident directions.
    • This photonic crystal-based method provides a compact and integrable solution.
    • The findings may advance applications such as light detection and ranging (lidar).