涂覆双层石墨烯的介质纳米线表面等离子体光波导的模式特性研究

设计了一种由涂覆双层石墨烯的圆形介质纳米线组成的表面等离子体光波导。利用有限元法(FEM), 数值分析了纳米线半径、介质夹层厚度、石墨烯化学势以及工作频率对波导所支持的电磁场模式的有效折射率、传播长度、归一化模式面积以及品质因数等模式特性的影响。结果表明, 这种新型的混合表面等离子体光波导具有很强的模式束缚能力, 归一化模式面积非常小, 可以实现极高密度的器件集成, 并且传输损耗较低。

Abstract

In this paper,a new type of a surface plasmon waveguide composed of dielectric nanowire coated with two layers of graphene was proposed. Its modal performances were analyzed with the finite element method (FEM). The dependences of the mode effective index,propagation length,mode area and the figure of merit on the geometrical parameters and electromagnetic parameters were discussed. The simulated results showed that the proposed waveguide has advantages of simultaneously achieving lower propagation loss and stronger mode confinement with extremely small normalized mode area which is helpful for high density photonic integrating. This type of waveguide can be used to construct various functional devices for the future photonic integrated circuits and biosensors.

参考文献

[1] D X Dai,S L He. A Silicon-based Hybrid Plasmonic Wave-guide With a Metal Cap for a Nano-scale Light Confinement [J]. Opt Express,2009,17(19):16646-16653.DOI: 10.1364/OE.17.016646.

[2] B Robin,B Pierre. Figures of Merit for 2D Surface Plasmon Waveguides and Application to Metal Stripes [J]. Opt Express,2007,15(19): 12174-12182.DOI: 10.1364/OE.15.012174.

[3] W Xu,Z H Zhu,K Liu,J F Zhang,X D Yuan,Q S Lu,S Q Qin. Dielectric Loaded Graphene Plasmon Waveguide [J]. Opt Express,2015,23(4): 5147-5153.DOI: 10.1364/OE.23.005147.

[4] K S Novoselov,A K Geim,S V Morozov,D Jiang,M I Katsnelson,I V Grigorieva,S V Dubonos,A A Firsov. Two-dimensional Gas of Massless Dirac Fermions in Grapheme [J].Nature,2005,438(70-65):197-200.DOI: 10.1038/nature04233

[5] F H L Koppens,D E Chang,F J García de Abajo. Graphene Plasmonics: a Platform for Strong Light Matter Interactions [J]. Nano Lett,2011,11(7):3370-3377.DOI: 10.1021/nl201771h.

[6] L Ju,B Geng,J Horng,C Girit,M Martin,Z Hao,H A Bechtel,X Liang,A Zettl,Y R Shen,F Wang. Graphene Plasmonics for Tunable Terahertz Metamaterials [J].Natture Nanotech,2011,6(10): 630-634.DOI: 10.1038/NNANO.2011.146.

[7] J Christensen,A Manjavacas,S Thongrattanasiri,F H L Koppens,F J García de Abajo. Graphene Plasmon Waveguiding and Hybridization in Individual and Paired Nanoribbons [J]. ACS Nano,2012,6(1): 431-440.DOI: 10.1021/nn2037626.

[8] M Jablan,H Buljan,M Soljacˇic′ .Plasmonics in Graphene at Infrared Frequencies [J]. Phys Rev B,2009,80(24): 245435-7. DOI: 10.1103/PhysRevB.80.245435.

[9] K J A Ooi,H S Chu,L K Ang,P Bai Mid-infrared Active Graphene Ranoribbon Plasmonic Waveguide Devices [J]. J Opt Soc Am B,2013,30(12): 3111-3116.DOI: 10.1364/JOSAB.30.00311.

[10] P H Liu,X Z Zhang,Z H Ma,W Cai,L Wang,J J Xu. Surface Plasmon Modes in Graphene Wedge and Groove Waveguides [J]. Opt Express,2013,21(26):32432-32440.DOI: 10.1364/OE.21.032432.

[11] X He,X Zhang,H Zhang,M Xu. Graphene Covered on Microfiber Exhibiting Polarization and Polarization-dependent Saturable Absorption [J]. IEEE J Sel Top Quantum Electron,2014,20(1): 4500107.DOI: 10.1109/JSTQE.2013.2270278.

[12] X He,Z Liu,D N Wang,M Yang,T Y Hu,J G Tian. Saturable Absorber Based on Graphene-covered-microfiber [J]. IEEE Photon Technol Lett,2013,25(14):1392-1394.DOI: 10.1109/LPT.2013.2266114.

[13] Y Wu,B Yao,A Zhang,Y Rao,Z Wang,Y Cheng,Y Gong,W Zhang,Y Chen,K S Chiang. Graphene-coated Microfiber Bragg Grating for High-sensitivity Gas Sensing [J]. Opt Lett,2014,39(5): 1235-1237.DOI: 10.1364/OL.39.001235.

[14] W Li,B Chen,C Meng,W Fang,Y Xiao,X Li,Z Hu,Y Xu,L Tong,H Wang,W Liu,J Bao,Y R Shen. Ultrafast All-optical Graphene Modulator [J]. Nano Lett,2014,14(2): 955-959.DOI: 10.1021/nl404356t.

[15] J F Yang,J J Yang,W Deng,F C Mao,M Huang. Transmission Properties and Molecular Sensing Application of CGPW [J]. Opt Express,2015,23(25):32289-32291.DOI:10.1364/OE.23.032289.

[16] Y X Gao,G B Ren,B F Zhu,H Q Liu,Y D Lian,S S Jian. Analytical Model for Plasmon Modes in Graphene-coated Nanowire [J]. Opt Express,2014,22(20): 24322-24331.DOI: 10.1364/OE.22.024322.

[17] J P Liu, X Zhai,L L Wang,H J Li,F Xie,Q Lin,S X Xia. Analysis of Mid-Infrared Surface Plasmon Modes in a Graphene-Based Cylindrical Hybrid Waveguide [J]. Plasmonics,2016,11:703-711.DOI: 10.1007/s11468-015-0095-z.

[18] A Yu Nikitin,F Guinea,F J Garcia-Vidal,L Martin-Moreno. Fields Radiated by a Nano Emitter in a Graphene Sheet [J]. Phys Rev B,2011,84(19):195446-7.DOI: 10.1103/PhysRevB.84.195446.

[19] S L He,X H Zhang,Y G He. Graphene Nano-ribbon Waveguides of Record Small Mode Area and Ultra-high Effective Refractive Indices for Future VLSI [J]. Opt Express,2013,21(25): 30664-30673.DOI: 10.1364/OE.21.030664

[20] R F Oulton,V J Sorger,D A Genov,D F P Pile,X Zhang. A Hybrid Plasmonic Waveguide for Subwavelength Confinement and Long-range Propagation [J]. Nat Photon,2008,2: 496-500.DOI: 10.1038/nphoton.2008.131

[21] J Jung,T Sondergaard,S I Bozhevolnyi.Theoretical Analysis of Square Surface Plasmon Polariton Waveguides for Long-range Polarization-independent Waveguiding [J]. Phy Rev B,2007,76(03): 035434-035445.DOI: 10.1103/PhysRevB.76.035434.

[22] J A Dionne,L A Sweatlock,H A Atwater. Plasmon Slot Waveguides: Towards Chip-scale Propagation With Subwavelength-scale Localization [J]. Phys Rev B,2006,73(03): 54071-54079.DOI: 10.1103/PhysRevB.73.035407.

[23] P Berini. Figures of Merit for Surface Plasmon Waveguides [J]. Opt Express,2006,14(26): 13030-13042.DOI: 10.1364/OE.14.013030.

[24] A Y Nikitin,F Guinea,F J García-Vidal,L Martín-Moreno. Edge and Waveguide Terahertz Surface Plasmon Modes in Graphene Microribbons [J]. Phys Rev B,2011,84(16): 161407(R). DOI: 10.1103/PhysRevB.84.161407.

[25] Y Wang,Y Ma,X Guo,L Tong.Single-mode Plasmonic Waveguiding Properties of Metal Nanowires with Dielectric Substrates [J]. Opt Express,2012,20(17):19006-19015.DOI: 10.1364/OE.20.019006.

吴敌, 田晋平, 杨荣草. 涂覆双层石墨烯的介质纳米线表面等离子体光波导的模式特性研究[J]. 量子光学学报, 2017, 23(2): 178. WU Di, TIAN Jin-ping, YANG Rong-cao. Study of the Mode Properties of a Surface Plasmon Waveguide Composed of Dielectric Nanowire Coated with Two Layers of Graphene[J]. Acta Sinica Quantum Optica, 2017, 23(2): 178.

涂覆双层石墨烯的介质纳米线表面等离子体光波导的模式特性研究

关于本站 Cookie 的使用提示

全站搜索

涂覆双层石墨烯的介质纳米线表面等离子体光波导的模式特性研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索