ZHAO Fei,ZHANG Yingqiao*.Study on the transport properties of surface plasmon polaritons inthe system of a plasmonic waveguide end-coupled to two cavities[J].Journal of Yanbian University,2019,45(02):117-121.
表面等离子波导端耦合腔系统中表面等离子激元传输性质的研究
- Title:
- Study on the transport properties of surface plasmon polaritons in the system of a plasmonic waveguide end-coupled to two cavities
- 文章编号:
- 1004-4353(2019)02-0117-05
- Keywords:
- surface plasmon polaritons; transport properties; waveguide
- 分类号:
- O431
- 文献标志码:
- A
- 摘要:
- 用表面等离子波导端耦合两个表面等离子腔组成非厄米量子系统,研究该系统中表面等离子激元的传输性质,并通过求解系统的本征值方程得到表面等离子激元的透射和反射振幅.通过分析表面等离子波导系统的反射率和透射率随参量变化的关系图表明:随着表面等离子激元波导与腔耦合强度的增加,反射峰和透射峰逐渐变宽; 随着腔损耗的增大,反射峰的峰值明显减小,而透射峰的峰值明显增加; 随着腔间耦合系数g的增加,两个反射峰/透射峰之间的距离变宽.
- Abstract:
- The transport properties of surface plasmon polaritons(SPPs)are theoretically studied in a surface plasmon waveguide system, which consists of a surface plasmon waveguide end-coupled to two surface plasmon cavities. The transmission and reflection amplitudes of SPPs are obtained by solving the eigen-equation of the system. In addition, analysis of reflectance and transmittance as the function of parameters in the surface plasmon waveguide system shows that as as increaseing the coupling strength of the waveguide and the cavity, the resonant peaks gradually widen; as the cavity loss increases, the peak value of the reflection peak decreases while the transmission peak increases significantly, and as the coupling coefficient g between the two cavities increases, the distance between two reflection(transmission)peaks becomes wider.
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相似文献/References:
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备注/Memo
收稿日期: 2019-04-22 *通信作者: 张英俏(1978—),女,副教授,研究方向为量子信息学.
*基金项目: 国家自然科学基金资助项目(11364044,11864043); 吉林省科技发展计划项目(20180101342JC)