论文标题
kagome tland带，用于连贯的激子 - 波利顿激光
Kagome Flatbands for Coherent Exciton-Polariton Lasing
论文作者
论文摘要
支撑狄拉克锥和平板分散体的Kagome Lattices被称为高度沮丧的二维晶格系统。尤其是其中的平板基于其与拓扑顺序，相关性和挫败感的联系而引起了持续的兴趣。在这项工作中，我们意识到托有激光量子量子流体的kagome晶格的微腔实现。我们证明了对悬条的分散性的精确控制以及激子 - 摩尔龙在平坦带中的选择性缩合。随后，我们着重于这些偏振子冷凝物的激光样发射的空间和时间相干性能，它们与系统的平坦频带性质紧密连接。值得注意的是，由于平板冷凝水的定位，我们发现连贯性时间急剧增加。我们的工作说明了激子 - 帕利顿系统对平板状态的详细研究的出色适用性，作为紧凑型局部状态的微叠式阵列的平台，包括强烈的相互作用，拓扑和非线性。
Kagome lattices supporting Dirac cone and flatband dispersions are well known as a highly frustrated, two-dimensional lattice system. Particularly the flatbands therein are attracting continuous interest based on their link to topological order, correlations and frustration. In this work, we realize coupled microcavity implementations of Kagome lattices hosting exciton-polariton quantum fluids of light. We demonstrate precise control over the dispersiveness of the flatband as well as selective condensation of exciton-polaritons into the flatband. Subsequently, we focus on the spatial and temporal coherence properties of the laser-like emission from these polariton condensates that are closely connected to the flatband nature of the system. Notably, we find a drastic increase in coherence time due to the localization of flatband condensates. Our work illustrates the outstanding suitability of the exciton-polariton system for detailed studies of flatband states as a platform for microlaser arrays in compact localized states, including strong interactions, topology and non-linearity.
