论文标题

涡旋诱导的剪切极性子

Vortex-induced Shear Polaritons

论文作者

Xue, Shuwen, Zeng, Yali, Tao, Sicen, Hou, Tao, Zhu, Shan, Hu, Chuanjie, Chen, Huanyang

论文摘要

双曲线剪切极性子(HSHP)以广泛的关注出现,这是由于剪切晶格而引起的新的极性模式,对称性损坏。在这封信中,我们发现了一种生成HSHP的新机制。当利用涡旋波作为无偏离元素双曲线材料的激发源时,将会出现HSHP。此外,通过对左旋转和右旋转的HSHP的关键过渡模式,可以将这种不对称的HSHP恢复为对称模式,通过调整非对角线假想组件的大小并控制涡流源的拓扑电荷。值得一提的是,我们探讨了拓扑电荷对现场分布的奇偶校验的影响,并从数值和分析的角度证明了这些外来现象。我们的结果将为HSHP和涡流波促进新的机会,从而扩大基于涡流源的各种双曲线材料的地平线,并提供了控制各种极性子的新自由度。

Hyperbolic shear polaritons (HShPs) emerge with widespread attention as a new class of polariton modes with broken symmetry due to shear lattices. In this letter, we find a new mechanism of generating HShPs. When utilizing vortex waves as excitation sources of hyperbolic materials without off-diagonal elements, HShPs will appear. In addition, this asymmetric HShPs can be recovered as symmetric modes away from the source, with a critical transition mode between the left-skewed and right-skewed HShPs, via tuning the magnitude of the off-diagonal imaginary component and controlling the topological charge of vortex source. It is worth mentioning that we explore the influence of parity of topological charges on the field distribution and demonstrate these exotic phenomena from numerical and analytical perspectives. Our results will promote new opportunities for both HShPs and vortex waves, widening the horizon for various hyperbolic materials based on vortex sources and offering a new degree of freedom to control various kinds of polaritons.

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