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<p>This study explores the propagation characteristics of plasmon mode at non-uniform plasma-indium antimonide (InSb) interface in THz frequency regime. The primary goal of this work is to examine the combined effects of cyclotron frequency, plasma frequency, and InSb temperature on the dispersion relations of plasmon mode. We derive dispersion relation to analyze the effective mode index, propagation length, normalized phase velocity, cutoff frequency, and normalized propagation constant across THz frequency spectrum. Our results demonstrate that cyclotron frequency and plasma frequency of plasma medium profoundly influences the characteristics curves. Furthermore, temperature plays a critical role in modulating these plasmonic properties. The temperature effect provides additional degree of tunability for controlling the behavior of the plasmons, providing additional versatility for applications requiring precise thermal management and optimization. The combination of plasma parameters and temperature-dependent plasmonic behavior opens new avenues to design the nano-plasmonic devices with enhanced functionalities due to anisotropy of plasma medium.</p>

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Thermal Manipulation of Plasmonic Modes at Non-uniform Plasma Temperature–Sensitive Material Interface

  • 期刊论文

  • 发表日期：

    2025年6月9日

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  • Mohamed Shaban,
  • Karrar Hazim Salem,
  • Sameerah I. Al-Saeedi,
  • Rabeea M. A. Daoub,
  • A. M. Elbasiony,
  • Hussein A. Elsayed,
  • Laiba,
  • Rana Muhammad Zulqarnain

摘要

This study explores the propagation characteristics of plasmon mode at non-uniform plasma-indium antimonide (InSb) interface in THz frequency regime. The primary goal of this work is to examine the combined effects of cyclotron frequency, plasma frequency, and InSb temperature on the dispersion relations of plasmon mode. We derive dispersion relation to analyze the effective mode index, propagation length, normalized phase velocity, cutoff frequency, and normalized propagation constant across THz frequency spectrum. Our results demonstrate that cyclotron frequency and plasma frequency of plasma medium profoundly influences the characteristics curves. Furthermore, temperature plays a critical role in modulating these plasmonic properties. The temperature effect provides additional degree of tunability for controlling the behavior of the plasmons, providing additional versatility for applications requiring precise thermal management and optimization. The combination of plasma parameters and temperature-dependent plasmonic behavior opens new avenues to design the nano-plasmonic devices with enhanced functionalities due to anisotropy of plasma medium.