Synthesis of passive lossless metasurfaces using auxiliary fields for reflectionless beam splitting and perfect reflection

Abstract

We introduce a paradigm for accurate design of metasurfaces for intricate beam manipulation, implementing functionalities previously considered impossible to achieve with passive lossless elements. The key concept involves self-generation of auxiliary evanescent fields which facilitate the required local power conservation, without interfering with the device performance in the far field. We demonstrate our scheme by presenting exact reactive solutions to the challenging problems of reflectionless beam splitting and perfect reflection, verified via full wave simulations.

arXiv comment12 pages, 2 figures (+Supplemental Material (ancillary file): 10 pages, 4 figures)

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