Multipole polarization assisted optical bistability in a semiconductor quantum dot/metal nanoparticle hybrid molecule

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成果类型：

期刊论文

作者：

Zhao, Wenhao;Long, Linwen;Guo, Qingqing;Peng, Yuxiang;Li, Jianbo;...

通讯作者：

Li, JB

作者机构：

[Chen, Liqun; Li, Jianbo; Zhao, Wenhao; Guo, Qingqing; Long, Linwen; Peng, Yuxiang; He, Mengdong] Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Peoples R China.

[Chen, Liqun; Li, Jianbo; Zhao, Wenhao; Guo, Qingqing; Long, Linwen; Peng, Yuxiang; He, Mengdong] Cent South Univ Forestry & Technol, Hunan Prov Key Lab Mat Surface & Interface Sci & T, Changsha 410004, Peoples R China.

[Xiao, Si] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Supermicrostructure & Ultrafast Proc, Changsha 410083, Peoples R China.

[Liang, Shan] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China.

通讯机构：

[Li, JB ] C

Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Peoples R China.

Cent South Univ Forestry & Technol, Hunan Prov Key Lab Mat Surface & Interface Sci & T, Changsha 410004, Peoples R China.

语种：

英文

期刊：

Journal of Applied Physics

ISSN：

0021-8979

年：

2023

卷：

133

期：

页码：

203102

DOI：

10.1063/5.0146592

基金类别：

National Natural Science Foundation of China (NNSFC) [11404410]; Natural Science Foundation of Hunan Province [2020JJ4935]; Scientific Research Fund of Hunan Provincial Education Department [20B602, 21B0253]

机构署名：

本校为第一且通讯机构

院系归属：

理学院

摘要：

We theoretically study the optical bistability assisted by multipole polarizations in a semiconductor quantum dot (SQD)/metal nanoparticle (MNP) hybrid molecule. We map out bistability phase diagrams within the parameter subspace spanned by (the pumping intensity I-pu, interparticle distance, d) under dipole and multipole approximations. It is shown that the I-pu-correlated bistable region will be broadened greatly in the strong exciton-plasmon coupling regime, and the corresponding lower (upper) bistable threshold is enlarged significantly due to multipole polarization (N = 10) in comparison ...

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Multipole polarization assisted optical bistability in a semiconductor quantum dot/metal nanoparticle hybrid molecule

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