Sun Jiawei, Li Yang, Hu Huatian, Chen Wen, Zheng Di, Zhang Shunping, Xu Hongxing
Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China.
The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
Nanoscale. 2021 Mar 4;13(8):4408-4419. doi: 10.1039/d0nr08592h.
Achieving strong coupling between emitters and cavity photons holds an important position in the light-matter interaction due to its applications such as polariton lasing, all-optical switches, and quantum information processing. However, room-temperature polaritonic devices with subwavelength dimensions based on strong light-matter coupling are difficult to realize using traditional emitter-cavity coupled systems. In recent years, coupled systems constructed from plasmonic nanostructures and transition metal dichalcogenides (TMDs) have shown their potential in achieving room-temperature strong coupling and robustness in the nanofabrication processes. This minireview presents the recent progress in strong plasmon-exciton coupling in such plasmonic-TMD hybrid structures. Differing from a broader scope of strong coupling, we focus on the plasmon-exciton coupling between excitons in TMDs and plasmons in single nanoparticles, nanoparticle-over-mirrors, and plasmonic arrays. In addition, we discuss the future perspectives on the strong plasmon-exciton coupling at few-excitons level and the nonlinear response of these hybrid structures in the strong coupling regime.
由于在极化激元激光、全光开关和量子信息处理等方面的应用，实现发射器与腔光子之间的强耦合在光与物质相互作用中占据重要地位。然而，使用传统的发射器 - 腔耦合系统难以实现基于强光与物质耦合的具有亚波长尺寸的室温极化激元器件。近年来，由等离子体纳米结构和过渡金属二硫属化物（TMDs）构建的耦合系统在实现室温强耦合以及在纳米制造过程中的稳健性方面展现出了潜力。本综述介绍了此类等离子体 - TMD 混合结构中强等离子体 - 激子耦合的最新进展。与更广泛的强耦合范畴不同，我们专注于 TMDs 中的激子与单个纳米颗粒、纳米颗粒 - 镜面以及等离子体阵列中的等离子体之间的等离子体 - 激子耦合。此外，我们还讨论了在少激子水平下强等离子体 - 激子耦合以及这些混合结构在强耦合 regime 中的非线性响应的未来展望。
