articleNature CommunicationsJul 28, 2017GOLD OA

Electromagnetic reprogrammable coding-metasurface holograms

LLLianlin LiTJTie Jun CuiWJWei JiSLShuo LiuJDJun Ding

Peking University · Southeast University · +7 more institutions

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Abstract

Metasurfaces have enabled a plethora of emerging functions within an ultrathin dimension, paving way towards flat and highly integrated photonic devices. Despite the rapid progress in this area, simultaneous realization of reconfigurability, high efficiency, and full control over the phase and amplitude of scattered light is posing a great challenge. Here, we try to tackle this challenge by introducing the concept of a reprogrammable hologram based on 1-bit coding metasurfaces. The state of each unit cell of the coding metasurface can be switched between '1' and '0' by electrically controlling the loaded diodes. Our proof-of-concept experiments show that multiple desired holographic images can be realized in…

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Topics & keywords

Topics
Keywords
  • Reconfigurability
  • Holography
  • Coding (social sciences)
  • Computer science
  • Realization (probability)
  • Photonics
  • Proof of concept
  • Computer hardware
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