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- W1753233722 abstract "The ability to modulate light at high speeds is of paramount importance for telecommunications, information processing and medical imaging technologies. This has stimulated intense efforts to master optoelectronic switching at visible and near-infrared frequencies, although coping with current computer speeds in integrated architectures still remains a major challenge. As a partial success, mid-infrared light modulation has been recently achieved through gating patterned graphene. Here we show that atomically thin noble metal nanoislands can extend optical modulation to the visible and near-infrared spectral range. We find plasmons in thin metal nanodisks to produce similar absorption cross-sections as spherical particles of the same diameter. Using realistic levels of electrical doping, plasmons are shifted by about half their width, thus leading to a factor-of-two change in light absorption. These results, which we substantiate on microscopic quantum theory of the optical response, hold great potential for the development of electrical visible and near-infrared light modulation in integrable, nanoscale devices. Rapid optical modulation is vital to many optoelectronic applications, like communications or imaging technologies. Here, the authors study the optical modulation of atomically thin gold nanodisks and find they have similar absorption cross-sections to spherical particles of the same width." @default.
- W1753233722 created "2016-06-24" @default.
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- W1753233722 date "2014-03-27" @default.
- W1753233722 modified "2023-10-16" @default.
- W1753233722 title "Tunable plasmons in atomically thin gold nanodisks" @default.
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- W1753233722 doi "https://doi.org/10.1038/ncomms4548" @default.
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