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Updated: May 2, 2026

Fabricating Metamaterials Using the Fiber Drawing Method
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String method for efficient design of metasurface-based optical systems.

Ivan Moreno, Thaire Galvan

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    |August 12, 2025
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    Summary
    This summary is machine-generated.

    We developed an efficient method to calculate phase profiles for optical systems using cascaded metasurfaces, like metalenses. This approach aids in designing better optical devices through validated analytical phase profiles.

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    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Metasurfaces offer novel optical functionalities.
    • Designing complex metasurface-based optical systems requires efficient methods for phase profile calculation.

    Purpose of the Study:

    • To present an efficient, generalized method for calculating phase profiles of cascaded metasurface optical systems.
    • To enable the design of advanced optical components like metalenses and metaconcentrators.

    Main Methods:

    • Generalization of the string method from nonimaging optics.
    • Representing optical paths as strings of equal length.
    • Incorporating metasurface phase shifts along these paths.

    Main Results:

    • Derived analytical phase profiles for metaconcentrators and metalens systems.
    • Validated the deduced phase profiles using ray-tracing simulations.
    • Demonstrated the method's applicability to various metasurface configurations.

    Conclusions:

    • The presented method provides an efficient way to calculate phase profiles for cascaded metasurface optics.
    • The analytical phase profiles serve as a strong foundation for optimizing and realizing robust optical designs.
    • This work facilitates the development of advanced metasurface-based optical devices.