论文标题
二维电子平方的等离子体
Plasmons in a Square of Two-Dimensional Electrons
论文作者
论文摘要
已经使用光学检测技术研究了单个平方的二维电子（2DE）的微波吸收光谱。基本偶极子和谐波四极等离子体模式已被鉴定，并将其与磁盘几何形状中的偶极子模式进行了比较。在方形的2DE中，在相邻的等离子体模式之间发现了强烈的相互作用，而在磁盘形几何形状中未观察到这种杂交。我们建立了一个刚性理论平台，可以分析地描述受限二维系统的磁光响应。开发的理论提供了对获得的实验结果的正确描述。
Microwave absorption spectra of a single square of two-dimensional electrons (2DES) have been investigated using an optical detection technique. Fundamental dipole and harmonic quadrupole plasmon modes have been identified and compared to those in the disk geometry. In the square-shaped 2DES, a strong interaction is discovered between the neighboring plasmon modes, whereas no such hybridization is observed in the disk-shaped geometry. We establish a rigid theoretical platform to analytically describe the magneto-optical response of confined two-dimensional systems. The developed theory provides a proper description of the obtained experimental results.
