Journal
ADVANCED OPTICAL MATERIALS
Volume 8, Issue 22, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.202001065
Keywords
anisotropic digital coding metasurface; electronic control; holographic imaging; polarization; reconfigurable; reflection; transmission
Categories
Funding
- National Key Research and Development Program of China [2017YFA0700200, 2017YFA0700201, 2017YFA0700202]
- National Natural Science Foundation of China [61631007, 61831006]
- 111 Project [111-2-05]
- Six Talent Peaks Project in Jiangsu Province [XCL-077]
- 333 Projection of Jiangsu Province
- Fundamental Research Funds for the Central Universities
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Digital coding metasurface, which provides a new approach to link the physical world and information science, has been quickly developed in recent years. However, all previously reported metasurfaces cannot achieve independent controls of different polarizations in both transmission and reflection spaces at the same time. In this work, a reconfigurable anisotropic digital coding metasurface loaded with electronically controlled PIN diodes is proposed that can independently manipulate not only the near/far-field pattern but also the transmission and reflection modes of the electromagnetic waves under different polarizations. As a validation example, a multifunctional holographic imaging metasurface is designed, fabricated, and measured. Both simulated and measured results show that orthogonally polarized waves (vertical and horizontal polarizations) can be manipulated to achieve different images, and the transmission and reflection modes of the differently-polarized images can be independently controlled in real time by changing the state of the loaded PIN diodes.
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