期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms9241
关键词
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资金
- Engineering and Physical Sciences Research Council of the United Kingdom [EP/M003175/1, EP/J018473/1]
- Chinese Scholarship Council (CSC) [201208455034]
- Research Grant Council of Hong Kong [CUHK1/CRF/12G]
- Engineering and Physical Sciences Research Council [EP/M003175/1, EP/J018473/1] Funding Source: researchfish
- EPSRC [EP/M003175/1, EP/J018473/1] Funding Source: UKRI
Metasurfaces are engineered interfaces that contain a thin layer of plasmonic or dielectric nanostructures capable of manipulating light in a desirable manner. Advances in meta-surfaces have led to various practical applications ranging from lensing to holography. Metasurface holograms that can be switched by the polarization state of incident light have been demonstrated for achieving polarization multiplexed functionalities. However, practical application of these devices has been limited by their capability for achieving high efficiency and high image quality. Here we experimentally demonstrate a helicity multiplexed metasurface hologram with high efficiency and good image fidelity over a broad range of frequencies. The metasurface hologram features the combination of two sets of hologram patterns operating with opposite incident helicities. Two symmetrically distributed off-axis images are interchangeable by controlling the helicity of the input light. The demonstrated helicity multiplexed metasurface hologram with its high performance opens avenues for future applications with functionality switchable optical devices.
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