Microscopic theory of exciton and trion polaritons in doped monolayers of transition metal dichalcogenides

作     者：Yaroslav Vladimirovich Zhumagulov Salvatore Chiavazzo Dmitry Romanovich Gulevich Vasili Perebeinos Ivan Andreevich Shelykh Oleksandr Kyriienko 

作者机构：University of RegensburgRegensburg93040Germany Department of Physics and EngineeringITMO UniversitySt.Petersburg197101Russia Department of Physics and AstronomyUniversity of ExeterStocker RoadExeterEX44QLUnited Kingdom Department of Electrical EngineeringUniversity at BuffaloThe State University of New YorkBuffaloNY14260USA Science InstituteUniversity of IcelandDunhagi-3IS-107ReykjavikIceland 

出 版 物：《npj Computational Materials》 (计算材料学（英文）)

年 卷 期：2022年第8卷第1期

页      面：891-900页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Y.V.Z.is grateful to the Deutsche Forschungsgemeinschaft (DFG,German Research Foundation) SPP 2244 (Project-ID 443416183) for the financial support The work of D.R.G.related to the numerical calculation of the structure of three-body states was supported by Russian Science Foundation (project 20-12-00224) I.A.S.acknowledges support from Icelandic Research Fund (project “Hybrid polaritonics”) and Russian Foundation for Basic Research (RFBR,joint RFBR-DFG project No.21-52-12038) S.C.and O.K.acknowledge the support from UK EPSRC New Investigator Award under the Agreement No.EP/V00171X/1.V.P.acknowledges support from the Vice President for Research and Economic Development (VPRED) at the University at Buffalo,SUNY Research Seed Grant Program the Center for Computational Research at the University at Buffalo111 

主　　题：polar transition theory 

摘      要：We study a doped transition metal dichalcogenide (TMDC) monolayer in an optical *** the microscopic theory,we simulate spectra of quasiparticles emerging due to the interaction of material excitations and a high-finesse optical mode,providing a comprehensive analysis of optical spectra as a function of Fermi energy and predicting several modes in the strong light-matter coupling *** addition to exciton-polaritons and trion-polaritons,we report polaritonic modes that become bright due to the interaction of excitons with free *** large doping,we reveal strongly coupled modes corresponding to excited trions that hybridize with a cavity *** also demonstrate that the increase of carrier concentration can change the nature of the system’s ground state from the dark to the bright *** results offer a unified description of polaritonic modes in a wide range of free electron densities.