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Metagratings, which are usually composed of nano pillars, start to draw more and more attention for different applications. They are known for their high diffraction efficiency in non-paraxial cases and insensitivity to polarization. In this example, we construct a blazed metagrating using square nano pillars, following the work of P. Lalanne, et al., and demonstrate the optimization of metagratings in VirtualLab Fusion. Particularly, we evaluate the polarization-dependent efficiency in the simulation.
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