论文标题
在扭曲的$α$ -MOO3中配置polariton
Configure polaritons in twisted $α$-MoO3
论文作者
论文摘要
Moire Engineering作为扭转范德华材料的配置方法，已在电子，磁和光学方面提供了一系列进步。然而，这些进展源于特异性扭曲角度形成的特殊Moire超级晶格。在这里，我们报告了纳米级轻肌的配置 - 极性堆积的$α$α$ - 相钼三重氧化物$α$ -MOO3板在0 $^o $至90 $^o $的广泛范围内。我们结合的实验和理论结果揭示了通过扭曲的各种极性波前几何形状和拓扑转变。 Polariton扭曲构型归因于高度各向异性双曲线极性子在堆叠的$α$ -MOO3板中的电磁相互作用。在扭曲的$α$ -MOO3中证明的纳米 - 两极子将其作为量身定制的纳米光，用于按需纳米光子功能。
Moire engineering as a configuration method to twist van der Waals materials has delivered a series of advances in electronics, magnetics and optics. Yet these advances stem from peculiar moire superlattices which form at small specific twisting angles. Here we report the configuration of nanoscale light-matter waves-the polaritons-by twisting stacked $α$-phase molybdenum trioxide $α$-MoO3 slabs in the broad range of 0$^o$ to 90$^o$. Our combined experimental and theoretical results reveal a variety of polariton wavefront geometry and topological transitions via the twisting. The polariton twisting configuration is attributed to the electromagnetic interaction of highly anisotropic hyperbolic polaritons in stacked $α$-MoO3 slabs. The nano-polaritons demonstrated in twisted $α$-MoO3 hold the promise as tailored nano-light for on-demand nanophotonic functionalities.
