Long Teng, Ma Xuekai, Ren Jiahuan, Li Feng, Liao Qing, Schumacher Stefan, Malpuech Guillaume, Solnyshkov Dmitry, Fu Hongbing
Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing, 100048, P. R. China.
Department of Physics and Center for Optoelectronics and Photonics Paderborn (CeOPP), Universität Paderborn, Warburger Strasse 100, 33098, Paderborn, Germany.
Adv Sci (Weinh). 2022 Oct;9(29):e2203588. doi: 10.1002/advs.202203588. Epub 2022 Aug 21.
Topological photonics provides an important platform for the development of photonic devices with robust disorder-immune light transport and controllable helicity. Mixing photons with excitons (or polaritons) gives rise to nontrivial polaritonic bands with chiral modes, allowing the manipulation of helical lasers in strongly coupled light-matter systems. In this work, helical polariton lasing from topological valleys of an organic anisotropic microcrystalline cavity based on tailored local nontrivial band geometry is demonstrated. This polariton laser emits light of different helicity along different angular directions. The significantly enhanced chiral characteristics are achieved by the nonlinear relaxation process. Helical topological polariton lasers may provide a perfect platform for the exploration of novel topological phenomena that involve light-matter interaction and the development of polariton-based spintronic devices.
拓扑光子学为开发具有强大无序免疫光传输和可控螺旋性的光子器件提供了一个重要平台。将光子与激子（或极化激元）混合会产生具有手征模式的非平凡极化激元能带，从而能够在强耦合光-物质系统中操控螺旋激光器。在这项工作中，展示了基于定制的局部非平凡能带几何结构，从有机各向异性微晶腔的拓扑谷中产生螺旋极化激元激光。这种极化激元激光器沿不同角向发射不同螺旋性的光。通过非线性弛豫过程实现了显著增强的手征特性。螺旋拓扑极化激元激光器可能为探索涉及光-物质相互作用的新型拓扑现象以及开发基于极化激元的自旋电子器件提供一个理想平台。
