Modulation of hybrid plasmon phonon polaritons mode in circular cylindrical three-layer graphene waveguide

IF 3.1 3区物理与天体物理 Q2 Engineering

Optik Pub Date : 2024-11-07 DOI:10.1016/j.ijleo.2024.172110

Ramnarayan , Ravindra Singh , Priyanka Yadav , Yogesh Sharma , Surendra Prasad

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引用次数: 0

Abstract

In this present research article, we have investigated analytically the characteristics of the fundamental mode of hybrid surface plasmon phonon polariton (HSPPhPs) mode in a circular cylindrical three-layer graphene (CTLG) waveguide structure. The dispersion equation of HSPPhPs is derived by using Maxwell’s equations and continuity conditions of tangential components of electric and magnetic fields in cylindrical geometry. The dispersion curve has been illustrated and thoroughly examined in relation to the effects of temperature and chemical potential (

μ_{c}

) of graphene, as well as variations in the thickness of silicon dioxide (SiO₂) and hexagonal boron nitride (hBN) layers, and found that in the presence of hBN, the effective mode index exhibits hyperbolic behavior with wave number. Up to the first Reststrahlen band (∼830.57 cm⁻¹), it varies slightly with graphene temperature; increasing graphene's (

μ_{c}

) lowers the index, while a thicker hBN layer reduces it, whereas the index increases with SiO₂ layer thickness. Also, we looked at how the CTLG waveguide structure is affected by the electric field distribution, phase speed, and propagation length.

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圆柱形三层石墨烯波导中的混合质子声子极化子模式调制

在本研究文章中，我们分析研究了圆柱形三层石墨烯（CTLG）波导结构中混合表面等离子体声子极化子（HSPPhPs）基本模式的特性。通过使用麦克斯韦方程和圆柱几何中电场和磁场切向分量的连续性条件，推导出了 HSPPhPs 的色散方程。我们结合石墨烯的温度和化学势（μc）的影响，以及二氧化硅（SiO2）和六方氮化硼（hBN）层厚度的变化，对色散曲线进行了说明和深入研究，发现在存在 hBN 的情况下，有效模式指数随波数的变化呈现双曲线行为。直到第一个雷斯特拉伦带（∼830.57 cm-¹），它都会随着石墨烯温度的变化而略有变化；石墨烯 (μc) 的增加会降低指数，而更厚的 hBN 层会降低指数，而指数则会随着 SiO₂ 层厚度的增加而增加。此外，我们还研究了 CTLG 波导结构如何受到电场分布、相位速度和传播长度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optik 物理-光学

CiteScore

6.90

自引率

12.90%

发文量

1471

审稿时长

46 days

期刊介绍： Optik publishes articles on all subjects related to light and electron optics and offers a survey on the state of research and technical development within the following fields: Optics: -Optics design, geometrical and beam optics, wave optics- Optical and micro-optical components, diffractive optics, devices and systems- Photoelectric and optoelectronic devices- Optical properties of materials, nonlinear optics, wave propagation and transmission in homogeneous and inhomogeneous materials- Information optics, image formation and processing, holographic techniques, microscopes and spectrometer techniques, and image analysis- Optical testing and measuring techniques- Optical communication and computing- Physiological optics- As well as other related topics.