The demonstration of a Yagi–Uda nano-antenna that operates at visible wavelengths gives hope for a convenient means of directing radiation patterns from nanoscale light sources such as single molecules and quantum dots.
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Lerosey, G. Yagi–Uda antenna shines bright. Nature Photon 4, 267–268 (2010). https://doi.org/10.1038/nphoton.2010.78
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DOI: https://doi.org/10.1038/nphoton.2010.78
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