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- W2789871515 abstract "Antennas play a key role in today’s wireless communication networks and it would be hugely beneficial to extent their use into the optical regime. However, classical signal generators do not work at those frequencies and therefore new concepts are needed. Here, we demonstrate how to electrically drive an optical nanoantenna using an atomic-scale feed gap provided by a gold-particle pushed into a precisely tailored interstice between two antenna arms. Upon applying a voltage, inelastic electron tunneling leads to current fluctuations in the optical regime and, hence, light emission. We show how the antennas spectrally shape the emission, how the exact particle position influences these properties and how to increase the directivity via Yagi-Uda arrangements or plasmonic waveguides structures in order to make electricallydriven optical nanoantennas more suitable for on-chip data communication." @default.
- W2789871515 created "2018-03-29" @default.
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- W2789871515 date "2018-01-26" @default.
- W2789871515 modified "2023-10-16" @default.
- W2789871515 title "Directed emission by electrically-driven optical antennas" @default.
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- W2789871515 doi "https://doi.org/10.1117/12.2289647" @default.
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