Journal
NATURE COMMUNICATIONS
Volume 7, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms11930
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Funding
- Deutsche Forschungsgemeinschaft [TRR142/A05, ZE953/7-1]
- EPSRC [EP/J018473/1]
- Leverhulme [RPG-2012-674]
- ERC Consolidator Grant (Topological)
- Opened Fund of the State Key Laboratory on Integrated Optoelectronics [IOSKL2014KF12]
- National Nature Science Foundation of China [11374367]
- National Basic Research Program of China (973 Program) [2013CB328801, 2013CB328806]
- National High Technology Research and Development Program of China (863 Program) [2015AA015905]
- National Natural Science Founding of China [61420106014, 61235002]
- National Research Foundation, Prime Minister's Office, Singapore under its Competitive Research Program (CRP) [NRF-CRP15-2015-03]
- International Graduate Exchange Program of Beijing Institute of Technology
- EPSRC [EP/J018473/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J018473/1] Funding Source: researchfish
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Metasurfaces, as the ultrathin version of metamaterials, have caught growing attention due to their superior capability in controlling the phase, amplitude and polarization states of light. Among various types of metasurfaces, geometric metasurface that encodes a geometric or Pancharatnam-Berry phase into the orientation angle of the constituent meta-atoms has shown great potential in controlling light in both linear and nonlinear optical regimes. The robust and dispersionless nature of the geometric phase simplifies the wave manipulation tremendously. Benefitting from the continuous phase control, metasurface holography has exhibited advantages over conventional depth controlled holography with discretized phase levels. Here we report on spin and wavelength multiplexed nonlinear metasurface holography, which allows construction of multiple target holographic images carried independently by the fundamental and harmonic generation waves of different spins. The nonlinear holograms provide independent, nondispersive and crosstalk-free post-selective channels for holographic multiplexing and multidimensional optical data storages, anti-counterfeiting, and optical encryption.
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