Optical nanoantenna field enhancement is hampered by material- and size-dependent losses. Researchers have now made an atomic antenna using the controlled formation of an isolated germanium vacancy colour centre in diamond, which enables giant near-field optical enhancement and which can detect and control nearby charges and induce energy transfer.
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Castelletto, S., Agio, M. Diamond colour centre enables an atomic optical antenna. Nat. Photon. 18, 1004–1005 (2024). https://doi.org/10.1038/s41566-024-01522-y
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DOI: https://doi.org/10.1038/s41566-024-01522-y
