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Volume 178, 2015
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Plasmonics in atomically thin materials

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The observation and electrical manipulation of infrared surface plasmons in graphene have triggered a search for similar photonic capabilities in other atomically thin materials that enable electrical modulation of light at visible and near-infrared frequencies, as well as strong interaction with optical quantum emitters. Here, we present a simple analytical description of the optical response of such kinds of structures, which we exploit to investigate their application to light modulation and quantum optics. Specifically, we show that plasmons in one-atom-thick noble-metal layers can be used both to produce complete tunable optical absorption and to reach the strong-coupling regime in the interaction with neighboring quantum emitters. Our methods are applicable to any plasmon-supporting thin materials, and in particular, we provide parameters that allow us to readily calculate the response of silver, gold, and graphene islands. Besides their interest for nanoscale electro-optics, the present study emphasizes the great potential of these structures for the design of quantum nanophotonics devices.

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The article was received on 10 Nov 2014, accepted on 18 Nov 2014 and first published on 16 Mar 2015

Article type: Paper
DOI: 10.1039/C4FD00216D
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Faraday Discuss., 2015,178, 87-107

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    Plasmonics in atomically thin materials

    F. J. García de Abajo and A. Manjavacas, Faraday Discuss., 2015, 178, 87
    DOI: 10.1039/C4FD00216D

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