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    Lattice Resonances in Transdimensional WS2 Nanoantenna Arrays

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    applsci-09-02005.pdf
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    Author
    Babicheva, Viktoriia E.
    Moloney, Jerome V.
    Affiliation
    Univ Arizona, Ctr Opt Sci
    Issue Date
    2019-05-02
    Keywords
    transition metal dichalcogenides
    Mie resonances
    multipole resonances
    collective effects
    two-dimensional materials
    nanomaterials
    transdimensional lattices
    van der Waals materials
    
    Metadata
    Show full item record
    Publisher
    MDPI
    Citation
    Babicheva, V. E., & Moloney, J. V. (2019). Lattice Resonances in Transdimensional WS2 Nanoantenna Arrays. Applied Sciences, 9(10), 2005.
    Journal
    APPLIED SCIENCES-BASEL
    Rights
    © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Featured Application ultra-thin optical components, metasurfaces. Abstract Mie resonances in high-refractive-index nanoparticles have been known for a long time but only recently have they became actively explored for control of light in nanostructures, ultra-thin optical components, and metasurfaces. Silicon nanoparticles have been widely studied mainly because of well-established fabrication technology, and other high-index materials remain overlooked. Transition metal dichalcogenides, such as tungsten or molybdenum disulfides and diselenides, are known as van der Waals materials because of the type of force holding material layers together. Transition metal dichalcogenides possess large permittivity values in visible and infrared spectral ranges and, being patterned, can support well-defined Mie resonances. In this Communication, we show that a periodic array of tungsten disulfide (WS2) nanoantennae can be considered to be transdimensional lattice and supports different multipole resonances, which can be controlled by the lattice period. We show that lattice resonances are excited in the proximity to Rayleigh anomaly and have different spectral changes in response to variations of one or another orthogonal period. WS2 nanoantennae, their clusters, oligomers, and periodic array have the potential to be used in future nanophotonic devices with efficient light control at the nanoscale.
    Note
    Open access journal
    ISSN
    2076-3417
    DOI
    10.3390/app9102005
    Version
    Final published version
    Sponsors
    Air Force Office of Scientific Research [FA9550-19-1-0032]
    ae974a485f413a2113503eed53cd6c53
    10.3390/app9102005
    Scopus Count
    Collections
    UA Faculty Publications

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