Electromagnetic reprogrammable coding-metasurface holograms

Research output: Contribution to journalArticlepeer-review

Authors

  • Lianlin Li
  • Tie Jun Cui
  • Wei Ji
  • Shuo Liu
  • Jun Ding
  • xiang Wan
  • Yun Bo Li
  • Menghua Jiang
  • Cheng-wei Qiu

Colleges, School and Institutes

External organisations

  • State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, 210096, China
  • Synergetic Innovation Center of Wireless Communication Technology, Nanjing, 210096, China
  • Peking University
  • University of Massachusetts
  • Department of Electronic Engineering and State Key Laboratory of Millimeter Waves, City University of Hong Kong
  • National University of Singapore

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.

Details

Original languageEnglish
Article number197
JournalNature Communications
Volume8
Early online date4 Aug 2017
Publication statusE-pub ahead of print - 4 Aug 2017

Keywords

  • Electrical and electronic engineering, Microwave photonics, Metamaterials