通过发生的太赫兹波来对石墨烯矩形中的等离子模式激发进行完整的电磁考虑
K V Mashinsky1, V V Popov1, D V Fateev2,3
1Kotelnikov Institute of Radio Engineering and Electronics of the Russian Academy of Sciences (Saratov Branch), Saratov, Russia, 410019.
Scientific reports
|March 30, 2024
概括
石墨烯矩形中的边缘场效应显著改变了太赫兹等离子体模式. 这些效应导致等离子体频率的红移,并改变分散,影响电磁波相互作用.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 纳米光子学 纳米光子学
- 电磁主义 电磁主义
背景情况:
- 石墨烯在太赫兹 (THz) 范围内表现出独特的等离子特性.
- 了解THz等离子激发对于开发新型光电子设备至关重要.
研究的目的:
- 理论上研究在石墨烯矩形中THz等离子体模式的激发.
- 分析边缘场效应对等离子体模式特征的影响.
- 为了研究发生波极化和石墨烯形状对等离子体激发的影响.
主要方法:
- 使用积分方程开发了一种完整的电磁方法.
- 分析了吸收截面光谱.
- 在石墨烯矩形中检查了电荷密度分布.
主要成果:
- 边缘场效应将等离子子场扩展到几何界限之外.
- 这些效应导致等离子模式频率的显著红色转移.
- 等离子模式分散被边缘场效应显著改变.
结论:
- 边缘场效应对于准确描述石墨烯中THz等离子体模式至关重要.
- 这些发现为设计基于石墨烯的THz设备提供了洞察力.
- 开发的电磁方法为类似的研究提供了一个强大的框架.
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