NANOPHOTONICS

Imaging the rainbow

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Dielectric metalenses made of high-index materials can compensate material dispersion to achieve broadband imaging in the visible.

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Fig. 1: Focusing of white light with lenses.
Fig. 2: Schematics of the meta-atom unit cell for the two design approaches.

References

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Correspondence to Thomas Zentgraf.

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Zentgraf, T. Imaging the rainbow. Nature Nanotech 13, 179–180 (2018) doi:10.1038/s41565-018-0062-x

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