Metamaterials and Photonic Crystals
Periodic boundary conditions are a set of constraints used in simulations and mathematical modeling where the boundaries of a system are treated as if they are connected to each other. This means that what happens at one edge of the system is mirrored at the opposite edge, allowing for the simulation of an infinite or repeating structure without actually needing to model the entire system. This concept is particularly relevant in fields like photonics and metamaterials, where understanding wave behavior in a periodic medium is crucial.
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