Dielectric multi-momentum meta-transformer in the visible

Lei Jin, Yao-Wei Huang, Zhongwei Jin, Robert C. Devlin, Zhaogang Dong, Shengtao Mei, Menghua Jiang, Wei Ting Chen, Zhun Wei, Hong Liu, Jinghua Teng, Aaron Danner, Xiangping Li, Shumin Xiao, Shuang Zhang, Changyuan Yu, Joel K. W. Yang, Federico Capasso () and Cheng-Wei Qiu ()
Additional contact information
Lei Jin: National University of Singapore
Yao-Wei Huang: National University of Singapore
Zhongwei Jin: National University of Singapore
Robert C. Devlin: Harvard University
Zhaogang Dong: Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research)
Shengtao Mei: National University of Singapore
Menghua Jiang: National University of Singapore
Wei Ting Chen: Harvard University
Zhun Wei: National University of Singapore
Hong Liu: Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research)
Jinghua Teng: Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research)
Aaron Danner: National University of Singapore
Xiangping Li: Jinan University
Shumin Xiao: Harbin Institute of Technology
Shuang Zhang: University of Birmingham
Changyuan Yu: National University of Singapore
Joel K. W. Yang: Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research)
Federico Capasso: Harvard University
Cheng-Wei Qiu: National University of Singapore

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract Metasurfaces as artificially nanostructured interfaces hold significant potential for multi-functionality, which may play a pivotal role in the next-generation compact nano-devices. The majority of multi-tasked metasurfaces encode or encrypt multi-information either into the carefully tailored metasurfaces or in pre-set complex incident beam arrays. Here, we propose and demonstrate a multi-momentum transformation metasurface (i.e., meta-transformer), by fully synergizing intrinsic properties of light, e.g., orbital angular momentum (OAM) and linear momentum (LM), with a fixed phase profile imparted by a metasurface. The OAM meta-transformer reconstructs different topologically charged beams into on-axis distinct patterns in the same plane. The LM meta-transformer converts red, green and blue illuminations to the on-axis images of “R”, “G” and “B” as well as vivid color holograms, respectively. Thanks to the infinite states of light-metasurface phase combinations, such ultra-compact meta-transformer has potential in information storage, nanophotonics, optical integration and optical encryption.

Date: 2019
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DOI: 10.1038/s41467-019-12637-0

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