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Metasurface design based on inverse transformation optics and parameter simplification

In this paper, a metasurface design capable of realizing the arbitrary deflection of electromagnetic (EM) beam is proposed using transformation optics (TO). A simplification procedure to 2D parameters is given via carefully choosing the coordinate transformation and effectively eliminating the spatial dependence. The results and discussions in this paper would provide valuable guidelines for the metasurface design based on TO.