Platform for Electrically Pumped Polariton Simulators and Topological Lasers.

Platform for Electrically Pumped Polariton Simulators and Topological Lasers.
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电泵极化子模拟器和拓扑激光器平台

DOI:
10.1103/physrevlett.121.257402
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发表时间:
2018
影响因子:
8.6
通讯作者:
Christian Schneider
Christian Schneider
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Suchomel;Holger;Sebastian Klembt;Tristan H. Harder;Martin Klaas;Oleg A. Egorov;Karol Winkler;Monika Emmerling;Ronny Thomale;Sven Höfling;Christian Schneider

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由于能带结构、轨道耦合和晶体对称性的共同作用,诸如石墨烯和过渡金属二硫化物的二维电子材料具有独特的电学和光学性质。通过冷原子、分子、电子图案和光学腔的人工晶格排列实现的合成物质已经出现,为同样实现这些场景提供了多种有趣的框架。激子极化激元最近已被添加到列表中的有前途的候选人在半导体平台上的系统哈密顿的仿真,提供通用的工具,工程师的潜在景观,并访问非线性电光制度。在这项工作中,我们介绍了一个电子驱动的正方形和蜂窝晶格的激子极化激元,铺平了道路走向真实的世界的设备的基础上极化激元晶格的芯片上的应用。我们的平台在直流注入下表现出从高对称点发出的类激光发射,暗示了具有可能的拓扑非平凡性质的电驱动极化激元激光器的前景。
Two-dimensional electronic materials such as graphene and transition metal dichalgenides feature unique electrical and optical properties due to the conspirative effect of band structure, orbital coupling, and crystal symmetry. Synthetic matter, as accomplished by artificial lattice arrangements of cold atoms, molecules, electron patterning, and optical cavities, has emerged to provide manifold intriguing frameworks to likewise realize such scenarios. Exciton polaritons have recently been added to the list of promising candidates for the emulation of system Hamiltonians on a semiconductor platform, offering versatile tools to engineer the potential landscape and to access the nonlinear electro-optical regime. In this work, we introduce an electronically driven square and honeycomb lattice of exciton polaritons, paving the way towards real world devices based on polariton lattices for on-chip applications. Our platform exhibits laserlike emission from high-symmetry points under direct current injection, hinting at the prospect of electrically driven polariton lasers with possibly topologically nontrivial properties.
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