Double Fano Resonances based on Coupled H-shaped Cavity

YOU Xin-chen; GUAN Jian-fei

doi:10.13756/j.gtxyj.2021.06.010

您当前的位置：

首页 >

文章列表页 >

Double Fano Resonances based on Coupled H-shaped Cavity

- Double Fano Resonances based on Coupled H-shaped Cavity
- Study on Optical Communications Issue 6, Pages: 57-61,67(2021)
- 作者机构：
  
  南京邮电大学电子与光学工程学院、微电子学院，南京　210023
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2021.06.010
  CLC： TN256
- Published：10 December 2021，
  
  Received：18 January 2021，
扫描看全文
YOU Xin-chen, GUAN Jian-fei. Double Fano Resonances based on Coupled H-shaped Cavity. [J]. Study on Optical Communications (6):57-61,67(2021)
DOI：

YOU Xin-chen, GUAN Jian-fei. Double Fano Resonances based on Coupled H-shaped Cavity. [J]. Study on Optical Communications (6):57-61,67(2021) DOI： 10.13756/j.gtxyj.2021.06.010.

摘要

为了获得可调控的双重Fano共振效应并实现高灵敏度折射率传感，文章提出了一种H型谐振腔近场耦合含金属挡板的金属-电介质-金属（MDM）波导结构。采用有限元法分析了该波导结构的透射谱线对结构参数及填充介质折射率的依赖关系。计算结果表明，在尺寸为300 nm×300 nm的H型谐振腔结构中可以产生中心波长分别为810和1 350 nm的纵向及横向一阶谐振模式，两种谐振模耦合进入含挡板直波导将产生具有反对称线型的双重Fano共振透射峰。经拟合计算得到这两个非对称透射峰的折射率传感灵敏度分别为750和1 360 nm/RIU。该结构为片上集成的纳米级折射率传感器设计提供了有效依据。

Abstract

In order to achieve tunable dual Fano resonance effect and high sensitivity refractive index sensing design

an H-shaped waveguide resonator is proposed to couple with the Metal-Dielectric-Metal (MDM) waveguide containing a single metal baffle in the middle part. The transmission spectra of the proposed structure have been calculated through the finite element method. It is demonstrated that double sharp and asymmetric transmittance peaks are emerged at the wavelengths around 810 and 1 350 nm respectively

which are generated by the double Fano resonances occurred vertically and horizontally in the H-shaped resonator with dimension of 300 nm×300 nm. Furthermore

the dependence of the transmission peaks on the structural parameters and refractive index of the H-shaped resonator have been discussed in detail. Finally

the double transmission peaks with the respective sensitivity of 750 and 1 360 nm/RIU have been achieved simultaneously in the proposed structure

which provide guidance for the design of nano-scale biosensors.

关键词

表面等离子激元金属-电介质-金属波导H型谐振腔Fano共振

Keywords

surface plasmon polaritonsMDM waveguideH-shaped resonatorFano resonance

references

Fano U.Effects of Configuration Interaction on Intensities and Phase Shifts[J].Phys.Rev., 1961, 124(6): 1866-1878.

Boris L, Nikolay I Z, Stefan A M, et al. The Fano Resonance in Plasmonic Nanostructures and Metamaterials[J].Nature Materials, 2010, 9(8): 707-715.

Nicolas R, Lévêque G, Marae M J, et al. Plasmonic Mode Interferences and Fano Resonances in Metal-insulator-metal Nanostructured Interface[J].Scientific Reports, 2015, 5(9): 14419.

Alp A, Ahmet A Y, Hatice A.Directional Double Fano Resonances in Plasmonic Hetero-Oligomers[J].Nano Letters, 2011, 11(9): 3694-3700.

Chen Z Q, Zhang S, Chen Y Q, et al. Double Fano Resonances in Hybrid Disk/Rod Artificial Plasmonic Molecules based on Dipole-quadrupole Coupling[J].Nanoscale, 2020, 12(17): 9776-9785.

蒋亚兰, 王继成, 王跃科, 等.一种带有支节的MIM型表面等离子体T型分束器[J].光子学报, 2014, 43(9): 182-186.

Wen K H, Hu Y H, Chen Li, et al. Fano Resonance with Ultra-High Figure of Merits based on Plasmonic Metal-insulator-metal Wave guide[J].Plasmonics, 2015, 10(8): 27-32.

Zhang Y Y, Li S L, Zhang X Y, et al. Evolution of Fano Resonance based on Symmetric/Asymmetric Plasmonic Waveguide System and Its Application in Nanosensor[J].Optics Communications, 2016, 370(7): 203-208.

Chen F, Zhang H F, Sun L H, et al. Temperature Tunable Fano Resonance based on Ring Resonator Side Coupled with a MIM Waveguide[J].Optics and Laser Technology, 2019, 116: 293-299.

Chen Y, Luo P, Liu X F, et al. Sensing Performance Analysis on Fano Resonance of Metallic Double-baffle Contained MDM Waveguide Coupled Ring Resonator[J].Optics and Laser Technology, 2018, 101, 273-278.

安厚霖, 张冠茂, 胡南, 等.基于耦合T型空腔的多重法诺共振现象[J].光子学报, 2016, 45(11): 112-117.

韩帅涛, 陈颖, 邸远见, 等.单挡板MDM波导耦合圆盘腔的Fano共振双模式特性研究[J].光学学报, 2018, 38(10): 333-339.

石悦, 张冠茂, 安厚霖, 等.基于耦合开口方环共振空腔的可控法诺共振研究[J].光子学报, 2017, 46(4): 193-201.

陈颖, 许扬眉, 谢进朝, 等.侧耦合谐振腔的多重独立可调谐Fano共振传感特性[J].光学学报, 2020, 40(4): 100-106.

Fu H X, Li S L, Wang Y L, et al. Independently Tunable Ultrasharp Double Fano Resonances in Coupled Plasmonic Resonator System[J].IEEE Photonics Journal, 2018, 10(1): 4800409.

杨韵茹, 关建飞.基于金属-电介质-金属波导结构的等离子体滤波器的数值研究[J].物理学报, 2016, 65(5): 281-287.

Dionne J A, Sweatlock L A, Atwater H A.Plasmon Slot Waveguides: Towards Chip-scale Propagation with Subwavelength-scale Localization[J].Physical Review B, 2006, 73(1): 035407.

Yang J H, Song X K, Chen Z, et al. Tunable Multi-Fano Resonances in MDM-based Side-coupled Resonator System and Its Application in Nanosensor[J].Plasmonics, 2016, 11(6): 1-8.

Chen Z, Yu L.Multiple Fano Resonances based on Different Waveguide Modes in a Symmetry Breaking Plasmonic System[J].IEEE Photonics Journal, 2014, 6(6): 1-8.

Chen J J, Sun C W, Gong Q H.Fano Resonances in a Single Defect Nanocavity Coupled with a Plasmonic Waveguide[J].Optics Letters, 2014, 39(1): 52-55.

Zhang Z X, Wang R B, Zhang Z Y, et al. Electromagnetically Induced Transparency and Refractive Index Sensing for a Plasmonic Waveguide with a Stub Coupled Ring Resonator[J].Plasmonics, 2017, 12(4): 1007-1013.

Zhang Z, Shi F H, Chen Y Y.Tunable Multichannel Plasmonic Filter based on Coupling-Induced Mode Splitting[J].Plasmonics, 2015, 10(1): 139-144.

唐丹丹, 关建飞.含U型腔MDM波导传感特性研究[J].光通信研究, 2020(3): 49-54.

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on Sensing Performance of MDM Waveguide Coupled with the Square Cavity Containing a Rectangular Groove

Sensing Performance of MDM Waveguide Coupled to U-shaped Resonator

Related Author

No data

Related Institution

College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications

⁰