Optical bistability in a heterodimer composed of a quantum dot and a metallic nanoshell

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期刊论文

作者：

Zhao, Wen-Hao;He, Meng-Ding;Long, Lin-Wen;Peng, Yu-Xiang;Xiao, Si;...

通讯作者：

Li, JB

作者机构：

[Peng, Yu-Xiang; Long, Lin-Wen; Li, Jian-Bo; Zhao, Wen-Hao; Chen, Li-Qun; He, Meng-Ding] Cent South Univ Forestry & Technol, Inst Math & Phys, Changsha 410004, Peoples R China.

[Peng, Yu-Xiang; Long, Lin-Wen; Li, Jian-Bo; Zhao, Wen-Hao; Chen, Li-Qun; He, Meng-Ding] 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 Supermicrostruct & Ultrafast Proc, Changsha 410083, 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

关键词：

Fano resonance;Nonlinear absorption;Quantum dots;Rayleigh scattering;Resonance fluorescence;Surface plasmons

期刊：

Optics Express

ISSN：

1094-4087

年：

2023

卷：

期：

页码：

28805-28815

DOI：

10.1364/OE.496184

基金类别：

Research Foundation of Education Bureau of Hunan Province (20B602, 21B0253); Natural Science Foundation of Hunan Province (2020JJ4935); National Natural Science Foundation of China (11404410).

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 explore the conditions for generating optical bistability (OB) in a heterodimer comprised of a semiconductor quantum dot (SQD) and a metallic nanoshell (MNS). The MNS is made of a metallic nanosphere as a core and a dielectric material as a shell. For the specific hybrid system considered, the bistable effect appears only if the frequency of the pump field is equal to (or slightly less than) the exciton frequency for a proper shell thickness. Bistability phase diagrams, when plotted, show that the dipole-induced bistable region can be greatly broadened by changing the shell th...

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Optical bistability in a heterodimer composed of a quantum dot and a metallic nanoshell

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