Noninterleaved Metasurface for (26-1) Spin- and Wavelength-Encoded Holograms
Date
2018
Authors
Jin, Lei
Dong, Zhaogang
Mei, Shengtao
Yu, Ye Feng
Wei, Zhun
Pan, Zhenying
Daqiqeh Rezaei, Soroosh
Li, Xiangping
Kuznetsov, Arseniy I
Kivshar, Yuri
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American Chemical Society
Abstract
Nanostructured metasurfaces demonstrate extraordinary
capabilities to control light at the subwavelength
scale, emerging as key optical components to physical
realization of multitasked devices. Progress in multitasked
metasurfaces has been witnessed in making a single metasurface
multitasked by mainly resorting to extra spatial freedom,
for example, interleaved subarrays, different angles. However,
it imposes a challenge of suppressing the cross-talk among
multiwavelength without the help of extra spatial freedom.
Here, we introduce an entirely novel strategy of multitasked
metasurfaces with noninterleaved single-size Si nanobrick
arrays and minimalist spatial freedom demonstrating massive information on 6-bit encoded color holograms. The interference between electric dipole and magnetic dipole in individual Si nanobricks with in-plane orientation enables manipulating six bases of incident photons simultaneously to reconstructed 6-bit wavelength- and spin-dependent multicolor images. Those massively reconstructed images can be distinguished by patternrecognition. It opens an alternative route for integrated optics, data encoding, security encryption, and information engineering.
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Source
Nano Letters
Type
Journal article
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Restricted until
2037-12-31
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