期刊
CHINESE PHYSICS LETTERS
卷 37, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0256-307X/37/7/077801
关键词
78; 67; Pt; 78; 67; -n; 78; 68; +m; 42; 82; -m
资金
- National Natural Science Foundation of China [11974437, 61675237]
- Guangdong Natural Science Funds for Distinguished Young Scholars [2017B030306007]
- Guangdong Special Support Program [2017TQ04C487]
- Pearl River S&T Nova Program of Guangzhou [201806010033]
We successfully overcome the problem of cross-talk in multiplexed metasurface design and realize the multiplexed metasurface with five printing images in both theoretical and experimental aspects, by employing the coherent pixel design considering coherent superposition of all the sub-elements. Compared with most previous studies where the integrated printing images were usually no more than three, our study shows obvious improvement. More importantly, in our approach all the sub-elements, which were crystalline silicon nanobricks with the size of 320 x 80 x 230 nm(3), were arranged in a square space of 1.45 x 1.45 mu m(2)following the closest packing way, enabling our multiplexed metasurface to have a potential of effective physical information capacity of printing image reaching the optical diffraction limit. Our study not only enlarges the information capacity of metasurfaces by expanding the integrated number of printing image in one metasurface, but also can promote metasurface applications in various fields such as information storage and encoding.
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