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Phase and Conductivity‐Controlled Surface Plasmon Polaritons in Hybrid Nanocomposite Systems.

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Title: Phase and Conductivity‐Controlled Surface Plasmon Polaritons in Hybrid Nanocomposite Systems.
Authors: Idrees, Muhammad1,2 (AUTHOR) idrees@zju.edu.cn, Badshah, Fazal3,4 (AUTHOR), Xie, Yuee1 (AUTHOR) yueexie@ujs.edu.cn, Li, Hui‐Jun2,5 (AUTHOR) hjli@zjnu.cn
Source: Surface & Interface Analysis: SIA. Aug2026, Vol. 58 Issue 8, p569-579. 11p.
Subjects: Surface conductivity, Surface plasmons, Polaritons, Dispersion relations, Nanocomposite materials
Abstract: We theoretically investigate how complex surface conductivity governs surface plasmon polaritons (SPPs) at the interface of hybrid plasmonic nanosystems composed of atomic and nanocomposite media. By introducing a tunable conductivity parameter, we analyze the influence of both its magnitude |σ| and phase θ on SPP behavior. The dispersion analysis reveals that smaller phases lead to stronger mode confinement, whereas larger phases broaden the spectral response. The effective mode index demonstrates controllable localization, with enhanced confinement at low θ and gradual delocalization as θ increases. Propagation characteristics indicate a balance between absorption and phase modulation, where intermediate phases optimize SPP transport by extending the propagation length. Penetration depth analysis shows complementary energy redistribution: low phases concentrate the field within the atomic medium, while higher phases shift energy deeper into the nanocomposite region. In addition, the rotary drag effect exhibits pronounced asymmetry governed by conductivity phase and spin frequency, enabling reversible control of both the sign and magnitude of the rotational response through θ or the external angular velocity ωs. These results demonstrate that conductivity magnitude and phase provide powerful knobs for tailoring dispersion, confinement, penetration, and rotational dynamics of SPPs, opening new avenues for advanced plasmonic devices in nanoscale light manipulation, quantum photonics, and hybrid plasmonic information processing. [ABSTRACT FROM AUTHOR]
Copyright of Surface & Interface Analysis: SIA is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 195037644
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Phase and Conductivity‐Controlled Surface Plasmon Polaritons in Hybrid Nanocomposite Systems.
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  Data: <searchLink fieldCode="JN" term="%22Surface+%26+Interface+Analysis%3A+SIA%22">Surface & Interface Analysis: SIA</searchLink>. Aug2026, Vol. 58 Issue 8, p569-579. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Surface+conductivity%22">Surface conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+plasmons%22">Surface plasmons</searchLink><br /><searchLink fieldCode="DE" term="%22Polaritons%22">Polaritons</searchLink><br /><searchLink fieldCode="DE" term="%22Dispersion+relations%22">Dispersion relations</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: We theoretically investigate how complex surface conductivity governs surface plasmon polaritons (SPPs) at the interface of hybrid plasmonic nanosystems composed of atomic and nanocomposite media. By introducing a tunable conductivity parameter, we analyze the influence of both its magnitude |σ| and phase θ on SPP behavior. The dispersion analysis reveals that smaller phases lead to stronger mode confinement, whereas larger phases broaden the spectral response. The effective mode index demonstrates controllable localization, with enhanced confinement at low θ and gradual delocalization as θ increases. Propagation characteristics indicate a balance between absorption and phase modulation, where intermediate phases optimize SPP transport by extending the propagation length. Penetration depth analysis shows complementary energy redistribution: low phases concentrate the field within the atomic medium, while higher phases shift energy deeper into the nanocomposite region. In addition, the rotary drag effect exhibits pronounced asymmetry governed by conductivity phase and spin frequency, enabling reversible control of both the sign and magnitude of the rotational response through θ or the external angular velocity ωs. These results demonstrate that conductivity magnitude and phase provide powerful knobs for tailoring dispersion, confinement, penetration, and rotational dynamics of SPPs, opening new avenues for advanced plasmonic devices in nanoscale light manipulation, quantum photonics, and hybrid plasmonic information processing. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Surface & Interface Analysis: SIA is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1002/sia.70077
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 11
        StartPage: 569
    Subjects:
      – SubjectFull: Surface conductivity
        Type: general
      – SubjectFull: Surface plasmons
        Type: general
      – SubjectFull: Polaritons
        Type: general
      – SubjectFull: Dispersion relations
        Type: general
      – SubjectFull: Nanocomposite materials
        Type: general
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      – TitleFull: Phase and Conductivity‐Controlled Surface Plasmon Polaritons in Hybrid Nanocomposite Systems.
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            NameFull: Idrees, Muhammad
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            NameFull: Badshah, Fazal
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            NameFull: Xie, Yuee
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            NameFull: Li, Hui‐Jun
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            – D: 01
              M: 08
              Text: Aug2026
              Type: published
              Y: 2026
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              Value: 58
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