|Dynamical beam manipulation based on 2-bit digitally-controlled coding metasurface|
|Huang, Cheng; Sun, Bo; Pan, Wenbo; Cui, Jianhua; Wu, Xiaoyu; Luo, Xiangang
|Source Publication||Scientific Reports
|Abstract||Recently, a concept of digital metamaterials has been proposed to manipulate field distribution through proper spatial mixtures of digital metamaterial bits. Here, we present a design of 2-bit digitally-controlled coding metasurface that can effectively modulate the scattered electromagnetic wave and realize different far-field beams. Each meta-atom of this metasurface integrates two pin diodes, and by tuning their operating states, the metasurface has four phase responses of 0, pi/2, pi, and 3 pi/2, corresponding to four basic digital elements "00", "01", "10", and "11", respectively. By designing the coding sequence of the above digital element array, the reflected beam can be arbitrarily controlled. The proposed 2-bit digital metasurface has been demonstrated to possess capability of achieving beam deflection, multi-beam and beam diffusion, and the dynamical switching of these different scattering patterns is completed by a programmable electric source.|
|Affiliation||Chinese Acad Sci, State Key Lab Opt Technol Nanofabricat & Microeng, Inst Opt & Elect, POB 350, Chengdu 610209, Peoples R China|
Huang, Cheng,Sun, Bo,Pan, Wenbo,et al. Dynamical beam manipulation based on 2-bit digitally-controlled coding metasurface[J]. Scientific Reports,2017,7.
Huang, Cheng,Sun, Bo,Pan, Wenbo,Cui, Jianhua,Wu, Xiaoyu,&Luo, Xiangang.(2017).Dynamical beam manipulation based on 2-bit digitally-controlled coding metasurface.Scientific Reports,7.
Huang, Cheng,et al."Dynamical beam manipulation based on 2-bit digitally-controlled coding metasurface".Scientific Reports 7(2017).
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