通过菲佐阻力效应增强掺杂石墨烯的布鲁斯特角移

Rafi Ud Din, Yuncheng Zhou, Reza Asgari, Gao Xianlong
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引用次数: 0

摘要

我们在掺杂石墨烯中加入了菲佐阻力效应,从而推导出一般的菲涅尔反射系数,菲佐阻力效应源于无质量狄拉克电子的独特行为。利用标准麦克斯韦方程和构成关系,我们分析了这种相对论现象对掺杂石墨烯光学特性的影响。我们的研究重点是单层石墨烯夹在两个静态介电介质之间的结构中布鲁斯特角的角度偏移。我们的研究结果表明,菲佐阻力效应的存在大大增强了布儒斯特角的偏移,从而导致石墨烯通道的光学特性发生重大变化,包括反射光谱的显著改变。我们证明,通过提高电子在石墨烯中的漂移速度和电荷密度,可以进一步放大这种角移,从而为控制基于石墨烯的系统的光学行为提供了一种可调机制。这项研究成果对利用石墨烯的光学特性设计和开发平面光子器件具有重要意义。这一突破为石墨烯在精密光子技术中的应用创造了新的机会,在这种技术中,对光和物质之间的相互作用进行精确控制是至关重要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Enhanced Brewster Angle Shift in Doped Graphene via the Fizeau Drag Effect
We derive the general Fresnel coefficients for reflection by incorporating the Fizeau drag effect in doped graphene, which arises from the unique behavior of its massless Dirac electrons. Using the standard Maxwell equations and constitutive relations, we analyze the influence of this relativistic phenomenon on the optical properties of doped graphene. Our study focuses on the angular shift of Brewster's angle in a structure where monolayer graphene is sandwiched between two static dielectric media. Our findings reveal that the presence of the Fizeau drag effect significantly enhances the Brewster angle shift, leading to substantial modifications in the optical characteristics of the graphene channel, including notable alterations in the reflectance spectrum. We demonstrate that this angular shift can be further amplified by increasing the drift velocities and charge densities of the electrons in graphene, offering a tunable mechanism for controlling optical behavior in graphene-based systems. The findings of this work have significant implications for the design and development of planar photonic devices that take advantage of the optical characteristics of graphene. This breakthrough creates new opportunities for the use of graphene in sophisticated photonic technologies, where exact control over the interactions between light and matter is essential.
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