Plasmonic characteristics of suspended graphene-coated wedge porous silicon nanowires with Ag partition

doi:10.1088/1674-1056/abb65c

Abstract We investigate a graphene-coated nanowire waveguide (GCNW) composed of two suspended wedge porous silicon nanowires and a thin Ag partition. The plasmonic characteristics of the proposed structure in terahertz (THz) frequency band are simulated by the finite element method (FEM). The parameters including the gap between the nanowires and Ag partition, the height of the nanowire, the thickness of the Ag partition, and the Fermi level of graphene, are optimized. The simulation results show that a normalized mode field area of ∼ 10^-4 and a figure of merit of ∼ 100 can be achieved. Compared with the cylindrical GCNW and isolated GCNW, the proposed wedge GCNW has good electric field enhancement. A waveguide sensitivity of 32.28 is obtained, which indicates the prospects of application in refractive index (RI) sensing in THz frequency band. Due to the adjustable plasmonic characteristics by changing the Fermi level (E_F), the proposed structure has promising applications in the electro-optic modulations, optical interconnects, and optical switches.

Keywords: surface plasmon polariton graphene porous silicon finite element method (FEM)

Received: 01 June 2020
Revised: 12 August 2020
Accepted manuscript online: 09 September 2020

PACS:	42.79.Gn	(Optical waveguides and couplers)
	42.82.Et	(Waveguides, couplers, and arrays)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61627818), the Key Project of Henan Provincial Education Department, China (Grant No. 19A510002), the Natural Science Project of the Cultivation Foundation of Henan Provincial Normal University, China (Grant No. 2017PL04), and the Ph. D. Program of Henan Normal University, China (Grant Nos. 5101239170010 and gd17167).

Corresponding Authors: ^†Corresponding author. E-mail: matao@htu.edu.cn

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Xu Wang(王旭), Jue Wang(王珏), Tao Ma(马涛), Heng Liu(刘恒), and Fang Wang(王芳) Plasmonic characteristics of suspended graphene-coated wedge porous silicon nanowires with Ag partition 2021 Chin. Phys. B 30 014207

1 Wang F, Zhang Y, Tian C, Girit C, Zettl A, Crommie M and Shen Y R 2008 Science 320 206
2 Bonaccorso F, Sun Z, Hasan T and Ferrari A C 2010 Nat. Photon. 4 611
3 Liu X J, Yang L W, Ma J Y, Li C L, Jin W and Bi W H 2018 Chin. Phys. B 27 104206
4 Fu G W, Wang Y, Wang B L, Yang K L, Wang X Y, Fu X H, Jin W and Bi W H 2020 Chin. Phys. B 29 34209
5 Hu D J, Lim J L, Jiang M, Wang Y, Luan F, Shum P P, Wei H and Tong W 2012 Opt. Lett. 37 2283
6 Zhu B, Ren G, Cryan M J, Gao Y, Yang Y, Wu B, Lian Y and Jian S 2015 Opt. Mater. Express 5 2174
7 Lu W 2016 Appl. Opt. 55 5095
8 Zhang Z Q, Jia Y X, Guo X F, Ge D H, Cheng G G and Ding J N 2018 Acta Phys. Sin. 67 033101 (in Chinese)
9 Ning R X, Jiao Z and Bao J 2017 Chin. Phys. Lett. 34 107801
10 Zhang H J, Zheng G G, Cheng Y Y, Zou X J and Xu L H 2018 Chin. Phys. Lett. 35 038102
11 Cen G, Zhang Z B, Lv X Y, Liu K H and Li Z Q 2020 Acta Phys. Sin. 69 027803 (in Chinese)
12 Cheng X Y, Tian Z, Li Q, Li S X, Zhang X Q, Ouyang C M, Gu J Q, Han J G and Zhang W L 2020 Chin. Phys. B 29 77803
13 Cen C, Chen J, Liang C, Huang J, Chen X, Tang Y, Yi Z, Xu X, Yi Y and Xiao S 2018 Physica E 103 93
14 Cen C, Lin H, Liang C, Huang J, Chen X, Yi Z, Tang Y, Duan T, Xu X, Xiao S and Yi Y 2018 Superlattices and Microstructures 120 427
15 Chen J, Zeng Y, Xu X, Chen X, Zhou Z, Shi P, Yi Z, Ye X, Xiao S and Yi Y 2018 Nanomaterials 8 175
16 He S, Zhang X and He Y 2013 Opt. Express 21 30664
17 Xiao B, Qin K, Xiao S and Han Z 2015 Opt. Commun. 355 602
18 Xu W, Zhu Z H, Liu K, Zhang J F, Yuan X D, Lu Q S and Qin S Q 2015 Opt. Express 23 5147
19 Ye S, Wang Z, Tang L, Zhang Y, Lu R and Liu Y 2014 Opt. Express 22 26173
20 Qi L and Liu C 2019 Opt. Mater. Express 9 1298
21 Tassin P, Koschny T, Kafesaki M and Soukoulis C M 2012 Nat. Photon. 6 259
22 Yuan Y, Yao J and Xu W 2012 Opt. Lett. 37 960
23 Teng D, Wang K, Li Z, Zhao Y, Zhao G, Li H and Wang H 2019 Appl. Sci. 9 2351
24 Liu J P, Zhai X, Xie F, Wang L L, Xia S X, Li H J, Luo X and Shang X J 2017 J. Lightwave Technol. 35 1971
25 Mbonye M, Mendis R and Mittleman D M 2009 Appl. Phys.s Lett. 95 233506
26 Hajati M and Hajati Y 2016 J. Opt. Soc. Am. B 33 2560
27 Hajati M and Hajati Y 2017 Appl. Opt. 56 870
28 Charrier J, Lupi C, Haji L and Boisrobert C 2000 Mater. Sci. Semicond. Process. 3 357
29 Hwang K W and Park S H 2015 Material Research Innovations 19 S8-549
30 Zhang H, Jie L and Jia Z 2018 Sensors 18 105
31 Olenych I B, Monastyrskii L S, Aksimentyeva O I, Orovc\'ík L and Salamakha M Y 2019 Molecular Crystals and Liquid Crystals 673 32
32 Girault P, Azuelos P, Lorrain N, Poffo L, Lemaitre J, Pirasteh P, Hardy I, Thual M, Guendouz M and Charrier J 2017 Opt. Mater. 72 596
33 Jiao L S, Liu J Y, Li H Y, Wu T S, Li F, Wang H Y and Niu L 2016 J. Power Sources 315 9
34 Shin D H, Kim J H, Kim J H, Jang C W, Seo S W, Lee H S, Kim S and Choi S H 2017 J. Alloys Compd. 715 291
35 Chan K C, Tso C Y, Hussain A and Chao C Y H 2019 Appl. Thermal Eng. 161 114112
36 Zunger A, Katzir A and Halperin A 1976 Phys. Rev. B 13 5560
37 Kou Y and Forstner J 2016 Opt. Express 24 4714
38 Bian Y and Gong Q 2013 Appl. Opt. 52 5733
39 Zhao Y, Li X G, Zhou X and Zhang Y N 2016 Sensors and Actuators B: Chemical 231 324
40 Gao H, Cao Q, Teng D, Zhu M and Wang K 2015 Opt. Express 23 27457
41 Yusheng B, Zheng Z, Pengfei Y, Jing X, Guanjun W, Lei L, Jiansheng L, Jinsong Z and Tao Z 2014 IEEE J. Select. Top. Quantum Electron. 20 181
42 Wang Y, Ma Y, Guo X and Tong L 2012 Opt. Express 20 19006
43 Bian Y, Zheng Z, Zhao X, Zhu J and Zhou T 2009 Opt. Express 17 21320
44 Ciminelli C, Campanella C M, Dell'Olio F, Campanella C E and Armenise M N 2013 Prog. Quantum Electron. 37 51

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Plasmonic characteristics of suspended graphene-coated wedge porous silicon nanowires with Ag partition

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