Metamaterials, Gratings, and Other Periodic Structures
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Periodic structures, including metamaterials and diffractive gratings, harness their inherent spatial periodicity to manipulate light. The application of periodic boundary conditions allows for the efficient modeling of just a single unit cell within these structures, significantly enhancing simulation speed and reducing computational costs. By using appropriate monitors, users can access various physical quantities including field distribution within the near-field zone and critical far-field metrics like reflection, transmission, absorption, and diffraction.
In addition, Tidy3D’s speed and scalability allow users to model the response of a large finite array of periodic devices, making it a more realistic simulation compared to real-world scenarios where the device size or the beam size is always finite.

.. toctree::
    :class: example-notebook-toc
    :maxdepth: 1

    ../../DielectricMetasurfaceAbsorber
    ../../GradientMetasurfaceReflector
    ../../GrapheneMetamaterial
    ../../TunableChiralMetasurface
    ../../MicrowaveFrequencySelectiveSurface
    ../../HighQSi
    ../../HighQGe
    ../../BiosensorGrating
    ../../DistributedBraggReflectorCavity
    ../../CMOSRGBSensor
    ../../PlasmonicNanorodArray
    ../../AllDielectricStructuralColor
    ../../MIMResonator  
    ../../VortexMetasurface
    ../../MetasurfaceBIC