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Design of 2D Non-Paraxial Beam-Splitting Metagrating
Time: 2020-10-09 16:12Source: infocrops.comWriter: infocrops
Metagratings are shown to have advantages when comparing with traditional gratings, especially in non-paraxial cases. In this example, we design a two-dimensional (2D) metagrating that splits the input into 3x3 beams. The metagrating is constructed with circular nano pillars, and in VirtualLab Fusion, we use FMM/RCWA to evaluate the diffraction efficiency of the metagrating. And, we show how to use the parametric optimization tool to improve the uniformity of the diffraction efficiencies.
 
 
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