基于三重量子点分子的圆偏振敏感超材料
Circular-polarization sensitive metamaterial based on triple quantum-dot molecules
摘要：
我们提出了一种新型的手性超材料的基础上形成的三个相同的量子点在三角形排列的人工分子的合奏。垂直于平面的静态磁场破坏了镜面对称性，使分子对光的圆偏振敏感。通过改变磁场的方向和大小，可以控制发射光谱的偏振和频率。我们确定了一个阈值频率，Ω，在此之上，我们发现强双折射。此外，可以实现克尔旋转和圆偏振激光作用。我们研究了单分子在不同能级排列下的激光特性，并证明了圆偏振转换的可能性。最后，我们分析了弱杂散电场或偏离等边三角形几何形状的影响。
英文摘要：
We propose a new type of a chiral metamaterial based on an ensemble of artificial molecules formed by three identical quantum-dots in a triangular arrangement. A static magnetic field oriented perpendicular to the plane breaks mirror symmetry, rendering the molecules sensitive to the circular polarization of light. By varying the orientation and magnitude of the magnetic field one can control the polarization and frequency of the emission spectrum. We identify a threshold frequency, Ω, above which we find strong birefringence. In addition, a Kerr rotation and circularly polarized lasing action can be implemented. We investigate the single-molecule lasing properties for different energy-level arrangements and demonstrate the possibility of circular polarization conversion. Finally, we analyze the effect of weak stray electric fields or deviations from the equilateral triangular geometry.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
