Synthesis of Passive Lossless Metasurfaces Using Auxiliary Fields for Reflectionless Beam Splitting and Perfect Reflection

Synthesis of Passive Lossless Metasurfaces Using Auxiliary Fields for Reflectionless Beam Splitting and Perfect Reflection

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...

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Veröffentlicht in:Physical review letters 2016-12, Vol.117 (25), p.256103-256103, Article 256103
Hauptverfasser: Epstein, Ariel, Eleftheriades, George V
Format: Artikel
Sprache:eng
Schlagworte:
Beam splitters
Beams (radiation)
Devices
Far fields
Lossless
Reflection
Simulation
Synthesis
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container_title Physical review letters
container_volume 117
creator Epstein, Ariel
Eleftheriades, George V
description 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.
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source American Physical Society Journals
subjects Beam splitters
Beams (radiation)
Devices
Far fields
Lossless
Reflection
Simulation
Synthesis
title Synthesis of Passive Lossless Metasurfaces Using Auxiliary Fields for Reflectionless Beam Splitting and Perfect Reflection
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