LI Gang,ZHANG Yingqiao*.Scattering properties of a surface plasmon in the coupled system of a metal nanowire and quantum dots[J].Journal of Yanbian University,2021,47(03):222-227.
量子点与金属纳米线耦合系统中表面等离子激元的散射特性
- Title:
- Scattering properties of a surface plasmon in the coupled system of a metal nanowire and quantum dots
- 文章编号:
- 1004-4353(2021)03-0222-06
- 分类号:
- O431
- 文献标志码:
- A
- 摘要:
- 利用由1根金属纳米线与2个相互耦合的量子点构成的系统研究了金属纳米线中单个表面等离子激元的传输特性.研究结果表明,通过适当地调节2个量子点的损耗率、量子点与金属纳米线之间的耦合强度、 2个量子点之间的相位和耦合强度能在异常点处获得单向无反射.该方案可为类二极管等非互易器件的研发提供理论参考.
- Abstract:
- Transport properties of a single surface plasmon in a metal nanowire are studied based on a system consisting of a metal nanowire with two mutually coupled quantum dots. It is shown that unidirectional reflectionlessness can be obtained at exceptional point by properly adjusting the loss rates of two quantum dots, coupling strength between two quantum dots and metal nanowire, phase and coupling strength between two quantum dots. The scheme will provide some theoretical references for research on the non - reciprocal devices such as diode - like.
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相似文献/References:
[1]辛立芳,张英俏*.非厄米量子系统中基于表面等离子激元与量子点耦合的单向无反射传输[J].延边大学学报(自然科学版),2018,44(02):116.
XIN Lifang,ZHANG Yingqiao*.Unidirectional reflectionless propagation based on the coupling of surface plasmon and two quantum dots in non-Hermitian quantum system[J].Journal of Yanbian University,2018,44(03):116.
[2]何志伟,金星日.表面等离子波导系统中基于远场耦合的可控单向无反射[J].延边大学学报(自然科学版),2022,(01):48.
HE Zhiwei,JIN Xingri.Controllable unidirectional reflectionlessness in a surface plasmonic waveguide system based on far - field coupling[J].Journal of Yanbian University,2022,(03):48.
备注/Memo
收稿日期: 2021-05-13
基金项目: 国家自然科学基金(12064045,11864043)
*通信作者: 张英俏(1978—),女,博士,副教授,研究方向为量子信息学.