SEMI OpenIR  > 半导体超晶格国家重点实验室
Direct observation of excitonic polaron in InAs/GaAs quantum dots
Gong M (Gong Ming); Chen G (Chen Geng); He LX (He Lixin); Li CF (Li Chuan-Feng); Tang JS (Tang Jian-Shun); Sun FW (Sun Fang-Wen); Niu ZC (Niu Zhi-Chuan); Huang SS (Huang She-Song); Xiong YH (Xiong Yong-Hua); Ni HQ (Ni Hai-Qiao); Guo GC (Guo Guang-Can); Gong, M, Univ Sci & Technol China, CAS, Key Lab Quantum Informat, Hefei 230026, Peoples R China. 电子邮箱地址: helx@ustc.edu.cn; cfli@ustc.edu.cn
2010
Source PublicationEPL
Volume90Issue:3Pages:Art. No. 37004
AbstractWe report a direct observation of excitonic polaron in InAs/GaAs quantum dots using the photoluminescence (PL) spectroscopy. We observe that a new peak s' emerges below the s-shell which has anomalous temperature dependence emission energy. The peak s' anticrosses with s at a certain temperature, with a large anticrossing gap up to 31 meV. The behavior of the new peak, which cannot be interpreted using Huang-Rhys model, provides a direct evidence for strong coupling between exciton and LO phonons, and the formation of the excitonic polaron. The strong coupling between exciton and phonons opens a way to coherently control the polaron states.
metadata_24国内
KeywordPhonon Coupling Regime
Subject Area半导体物理
Funding OrganizationWe thanks Prof. Y.J. Yan and X. Q. Li for helpful discussions. This work was supported by National Fundamental Research Program, the Innovation funds from the Chinese Academy of Sciences, National Natural Science Foundation of China (Grant Nos. 60621064, 10874162, 10734060).
Indexed BySCI
Language英语
Date Available2010-07-18
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/11365
Collection半导体超晶格国家重点实验室
Corresponding AuthorGong, M, Univ Sci & Technol China, CAS, Key Lab Quantum Informat, Hefei 230026, Peoples R China. 电子邮箱地址: helx@ustc.edu.cn; cfli@ustc.edu.cn
Recommended Citation
GB/T 7714
Gong M ,Chen G ,He LX ,et al. Direct observation of excitonic polaron in InAs/GaAs quantum dots[J]. EPL,2010,90(3):Art. No. 37004.
APA Gong M .,Chen G .,He LX .,Li CF .,Tang JS .,...&cfli@ustc.edu.cn.(2010).Direct observation of excitonic polaron in InAs/GaAs quantum dots.EPL,90(3),Art. No. 37004.
MLA Gong M ,et al."Direct observation of excitonic polaron in InAs/GaAs quantum dots".EPL 90.3(2010):Art. No. 37004.
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