DAI Tianyi,ZHAO Fei,JIN Xingri*.Dual-band unidirectional reflectionless phenomena in aterahertz waveguide system[J].Journal of Yanbian University,2019,45(01):27-30.
太赫兹波导系统中的双带单向无反射现象
- Title:
- Dual-band unidirectional reflectionless phenomena in a terahertz waveguide system
- 文章编号:
- 1004-4353(2019)01-0027-04
- 分类号:
- O431
- 文献标志码:
- A
- 摘要:
- 利用高阶等离子共振在3个桩状共振器边耦合到一个金属-绝缘体-金属等离子波导系统,并在该系统中研究了双带单向无反射现象.理论分析表明,在共振频率5.594 THz和5.928 THz处,向前方向的反射率均接近0,向后方向的反射率分别约为0.33和0.88,实现了双带的单向无反射.双带单向无反射共振峰的品质因数分别为25.4和49.4.
- Abstract:
- The dual-band unidirectional reflectionlessness is studied in a system of three stub resonators side-coupled to a metal-insulator-metal plasmonic waveguide based on high-order plasmon resonance. Theoretical analysis shows that reflectance for forward direction is close to 0 and for backward direction is close to 0.33 and 0.88 at two resonance frequencies of 5.594 THz and 5.928 THz, respectively. Therefore, dual-band unidirectional reflectionlessness is realized. The quality factors of dual-band unidirectional reflectionless peaks are 25.4 and 49.4, respectively.
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备注/Memo
收稿日期: 2019-02-14
*通信作者: 金星日(1978—),男,副教授,研究方向为纳米光子学.
基金项目: 国家自然科学基金资助项目(11364044,1864043); 吉林省教育厅科学研究项目(JJKH20170455KJ)