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23 April 2024

» arxiv » 1602.0755

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Efficient polarization insensitive complex wavefront control using Huygens' metasurfaces based on dielectric resonant meta-atoms
Katie E. Chong ; Lei Wang ; Isabelle Staude ; Anthony James ; Jason Dominguez ; Sheng Liu ; Ganapathi S. Subramania ; Manuel Decker ; Dragomir N. Neshev ; Igal Brener ; Yuri S. Kivshar ;
Date:	2 Feb 2016
Abstract:	Subwavelength-thin metasurfaces have shown great promises for the control of optical wavefronts, thus opening new pathways for the development of efficient flat optics. In particular, Huygens’ metasurfaces based on all-dielectric resonant meta-atoms have already shown a huge potential for practical applications with their polarization insensitivity and high transmittance efficiency. Here, we experimentally demonstrate a polarization insensitive holographic Huygens’ metasurface based on dielectric resonant meta-atoms capable of complex wavefront control at telecom wavelengths. Our metasurface produces a hologram image in the far-field with 82% transmittance efficiency and 40% imaging efficiency. Such efficient complex wavefront control shows that Huygens’ metasurfaces based on resonant dielectric meta-atoms are a big step towards practical applications of metasurfaces in wavefront design related technologies, including computer-generated holograms, ultra-thin optics, security and data storage devices.
Source:	arXiv, 1602.0755
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