The Intermode Polariton Parametric Scattering Laser in a Strong Coupled Microcavity Via Two-Photon Absorption

被引:2
作者
Wang, Runchen [1 ]
Wang, Yaqi [1 ]
Dong, Junxing [1 ]
Wang, Lisheng [1 ]
Wang, Jingzhuo [1 ]
Zhang, Yifan [1 ]
Chen, Huanjun [2 ]
Zhang, Yunwei [1 ]
Zhang, Yiyun [4 ,5 ]
Wang, Yue [3 ]
Zhu, Hai [1 ]
机构
[1] Sun Yat Sen Univ, Sch Phys, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
[2] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
[3] Nanjing Univ Sci & Technol, Coll Mat Sci & Engn, Nanjing 210094, Peoples R China
[4] Chinese Acad Sci, Inst Semicond, Res & Dev Ctr Solid State Lighting, Beijing 100083, Peoples R China
[5] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
polaritons; two-photon absorption; parametricscattering; microcavity; BOSE-EINSTEIN CONDENSATION; EXCITON; SPECTROSCOPY; DYNAMICS;
D O I
10.1021/acs.nanolett.4c01947
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Exciton-polaritons, hybrid quasiparticles from the strong coupling of excitons and cavity photons in semiconductor microcavities, offer a platform for exploring quantum coherence and nonlinear optical properties. The unique polariton parametric scattering (PPS) laser is of interest for its potential in quantum technologies and nonlinear devices. However, direct resonant excitation of polaritons in strong-coupling microcavities is challenging. This study proposes an innovative two-photon absorption (TPA) pump mechanism to address this. We observe TPA-driven PPS lasing in a strongly coupled microcavity at room temperature. High K-value exciton injections promote coherent stimulated emission of polariton scattering through intermode channels. Angle-resolved spectra confirm a TPA process, showing evolution from pump-state to signal-state. Hanbury Brown-Twiss measurement of second-order correlation g(2)(tau) of signal state indicates a phase transition from a classical thermal state to a quantum coherent state. Theoretical modeling provides insights into the physical mechanisms of PPS. Our work advances nonlinear phenomena exploration in strongly coupled light-matter systems, contributing to quantum polaritonics and nonlinear optics.
引用
收藏
页码:8988 / 8995
页数:8
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