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    Retrieval of Uniaxial Permittivity and Permeability for the Study of Near-Field Radiative Transport Between Metallic Nanowire Arrays

    Source: Journal of Heat Transfer:;2020:;volume( 142 ):;issue: 007::page 072803-1
    Author:
    Chang, Jui-Yung
    ,
    Sabbaghi, Payam
    ,
    Weng, Yu-Shao
    ,
    Chen, Yu-Bin
    ,
    Wang, Liping
    DOI: 10.1115/1.4047035
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Recently metamaterials made of periodic nanowire arrays, multilayers, and grating structures have been studied for near-field thermal radiation with enhanced coupling of evanescent waves due to surface plasmon/phonon polariton, hyperbolic mode, epsilon-near-zero and epsilon-near-pole (ENP) modes, guided mode, and wave interference. In this work, both effective uniaxial electric permittivity and magnetic permeability of a nanowire-based metamaterial are retrieved theoretically through the far-field radiative properties obtained by finite difference time-domain (FDTD) simulations. The artificial magnetic response of metamaterials, which cannot be obtained by traditional effective medium theory (EMT) based on electric permittivity of constitutes only, is successfully captured by the nonunity magnetic permeability, whose resonant frequency is verified by an inductor-capacitor model. By incorporating the retrieved electric permittivity and magnetic permeability into fluctuational electrodynamics with multilayer uniaxial wave optics, the near-field radiative heat transfer between the metallic nanowire arrays is theoretically studied and spectral near-field heat enhancements are found for both transverse electric and magnetic waves due to artificial magnetic resonances. The understanding and insights obtained here will facilitate the application of metamaterials in near-field radiative transfer.
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      Retrieval of Uniaxial Permittivity and Permeability for the Study of Near-Field Radiative Transport Between Metallic Nanowire Arrays

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4274758
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    contributor authorChang, Jui-Yung
    contributor authorSabbaghi, Payam
    contributor authorWeng, Yu-Shao
    contributor authorChen, Yu-Bin
    contributor authorWang, Liping
    date accessioned2022-02-04T22:02:28Z
    date available2022-02-04T22:02:28Z
    date copyright5/29/2020 12:00:00 AM
    date issued2020
    identifier issn0022-1481
    identifier otherht_142_07_072803.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4274758
    description abstractRecently metamaterials made of periodic nanowire arrays, multilayers, and grating structures have been studied for near-field thermal radiation with enhanced coupling of evanescent waves due to surface plasmon/phonon polariton, hyperbolic mode, epsilon-near-zero and epsilon-near-pole (ENP) modes, guided mode, and wave interference. In this work, both effective uniaxial electric permittivity and magnetic permeability of a nanowire-based metamaterial are retrieved theoretically through the far-field radiative properties obtained by finite difference time-domain (FDTD) simulations. The artificial magnetic response of metamaterials, which cannot be obtained by traditional effective medium theory (EMT) based on electric permittivity of constitutes only, is successfully captured by the nonunity magnetic permeability, whose resonant frequency is verified by an inductor-capacitor model. By incorporating the retrieved electric permittivity and magnetic permeability into fluctuational electrodynamics with multilayer uniaxial wave optics, the near-field radiative heat transfer between the metallic nanowire arrays is theoretically studied and spectral near-field heat enhancements are found for both transverse electric and magnetic waves due to artificial magnetic resonances. The understanding and insights obtained here will facilitate the application of metamaterials in near-field radiative transfer.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleRetrieval of Uniaxial Permittivity and Permeability for the Study of Near-Field Radiative Transport Between Metallic Nanowire Arrays
    typeJournal Paper
    journal volume142
    journal issue7
    journal titleJournal of Heat Transfer
    identifier doi10.1115/1.4047035
    journal fristpage072803-1
    journal lastpage072803-8
    page8
    treeJournal of Heat Transfer:;2020:;volume( 142 ):;issue: 007
    contenttypeFulltext
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