Electromagnetic reprogrammable coding-metasurface holograms

Lianlin Li (), Tie Jun Cui (), Wei Ji, Shuo Liu, Jun Ding, Xiang Wan, Yun Bo Li, Menghua Jiang, Cheng-Wei Qiu and Shuang Zhang ()
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Lianlin Li: Peking University
Tie Jun Cui: Southeast University
Wei Ji: Peking University
Shuo Liu: Southeast University
Jun Ding: University of Massachusetts Lowell
Xiang Wan: Southeast University
Yun Bo Li: Southeast University
Menghua Jiang: University of Massachusetts Lowell
Cheng-Wei Qiu: National University of Singapore
Shuang Zhang: University of Birmingham

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: 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 real time with only a single coding metasurface. The proposed reprogrammable hologram may be a key in enabling future intelligent devices with reconfigurable and programmable functionalities that may lead to advances in a variety of applications such as microscopy, display, security, data storage, and information processing.

Date: 2017
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DOI: 10.1038/s41467-017-00164-9

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