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等离子体加载单轴手性平板波导。

Plasma loaded uniaxial chiral slab waveguide.

作者信息

Umair Muhammad, Ghaffar Abdul, Alkanhal Majeed A S, Khan Yasin, Shahid Muhammad Usman, Ali Muhammad Amir

机构信息

Department of Physics, University of Agriculture, Faisalabad, Pakistan.

Department of Electrical Engineering, King Saud University, Riyadh, Saudi Arabia.

出版信息

Sci Rep. 2025 Apr 28;15(1):14801. doi: 10.1038/s41598-025-89922-0.

Abstract

In this study, numerical analysis has been carried out at plasma loaded uniaxial chiral slab waveguide. The formulation is based on differential form of Maxwell's equations and characteristics equation is obtained by employing boundary conditions at uniaxial chiral-plasma-uniaxial. Two cases of uniaxial chiral media i.e., axial permitivity grater than tranverse permitivity and axial permitivity less than tranverse permitivity are discussed to explore the characteristics for proposed waveguide structure. The influence of collsional frequencies, plasma frequencies, chirality and core width of waveguide on normalized propagation constant and propagation are analyzed. Numerical results indicate that physical parametrs of isotropic plasma (collisonal frequency and plasma frequency), chirality and core width play pivotal role to tune the normlized propagation constant, propagation length band gap and cut-off frequency in certain frequency range. The extraordinary traits of uniaxial chiral and plasma medium offer a wide range of research and development possibilities in diverse areas of optoelectronics.

摘要

在本研究中,对加载等离子体的单轴手性平板波导进行了数值分析。该公式基于麦克斯韦方程组的微分形式,通过采用单轴手性 - 等离子体 - 单轴处的边界条件获得特征方程。讨论了单轴手性介质的两种情况,即轴向介电常数大于横向介电常数和轴向介电常数小于横向介电常数,以探究所提出波导结构的特性。分析了碰撞频率、等离子体频率、手性和波导芯宽度对归一化传播常数和传播的影响。数值结果表明,各向同性等离子体的物理参数(碰撞频率和等离子体频率)、手性和芯宽度在特定频率范围内对调整归一化传播常数、传播长度带隙和截止频率起着关键作用。单轴手性和等离子体介质的非凡特性在光电子学的不同领域提供了广泛的研发可能性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb6b/12037878/be757976ff25/41598_2025_89922_Fig1_HTML.jpg

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