A Tunable Plasmonic Refractive Index Sensor with Nanoring-Strip Graphene Arrays

被引：69

作者：

Cen, Chunlian ^{[1
,2
]}

Lin, Hang ^{[1
,3
]}

Huang, Jing ^{[1
,3
]}

Liang, Cuiping ^{[1
,3
]}

Chen, Xifang ^{[1
,3
]}

Tang, Yongjian ^{[1
,3
]}

Yi, Zao ^{[1
,3
]}

Ye, Xin ^{[2
]}

Liu, Jiangwei ^{[4
]}

Yi, Yougen ^{[5
]}

Xiao, Shuyuan ^{[6
]}

机构：

[1] Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Peoples R China

[2] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621010, Peoples R China

[3] Sichuan Civil Mil Integrat Inst, Mianyang 621010, Peoples R China

[4] Cent S Univ, Sch Energy Sci & Engn, Changsha 410083, Hunan, Peoples R China

[5] Cent S Univ, Coll Phys & Elect, Changsha 410083, Hunan, Peoples R China

[6] Nanchang Univ, Inst Adv Study, Nanchang 330031, Jiangxi, Peoples R China

来源：

SENSORS | 2018年 / 18卷 / 12期

基金：

中国国家自然科学基金;

关键词：

surface plasmon resonance; refractive sensing; graphene; TRANSPARENT; RESONANCE; METAMATERIAL;

D O I：

10.3390/s18124489

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In the present study, we design a tunable plasmonic refractive index sensor with nanoring-strip graphene arrays. The calculations prove that the nanoring-strip have two transmission dips. By changing the strip length L of the present structure, we find that the nanoring-strip graphene arrays have a wide range of resonances (resonance wavelength increases from 17.73 mu m to 28.15 mu m). When changing the sensing medium refractive index n(med), the sensitivity of mode A and B can reach 2.97 mu m/RIU and 5.20 mu m/RIU. By changing the doping level n(g), we notice that the transmission characteristics can be tuned flexibly. Finally, the proposed sensor also shows good angle tolerance for both transverse magnetic (TM) and transverse electric (TE) polarizations. The proposed nanoring-strip graphene arrays along with the numerical results could open a new avenue to realize various tunable plasmon devices and have a great application prospect in biosensing, detection, and imaging.

引用

页数：10

共 42 条

[1]

Bae S, 2010, NAT NANOTECHNOL, V5, P574, DOI [10.1038/nnano.2010.132, 10.1038/NNANO.2010.132]

[2] Fully alloyed Ag/Au nanorods with tunable surface plasmon resonance and high chemical stability [J].

Bai, Yaocai ;

Gao, Chuanbo ;

Yin, Yadong .

NANOSCALE, 2017, 9 (39) :14875-14880

[3]

Bonaccorso F, 2010, NAT PHOTONICS, V4, P611, DOI [10.1038/nphoton.2010.186, 10.1038/NPHOTON.2010.186]

[4] Universal features of the optical properties of ultrathin plasmonic films [J].

Bondarev, Igor V. ;

Shalaev, Vladimir M. .

OPTICAL MATERIALS EXPRESS, 2017, 7 (10) :3731-3740

[5] Tunable plasmonic resonance absorption characteries-tics in periodic H-shaped graphene arrays [J].

Cen, Chunlian ;

Lin, Hang ;

Liang, Cuiping ;

Huang, Jing ;

Chen, Xifang ;

Yi, Zao ;

Tang, Yongjian ;

Duan, Tao ;

Xu, Xibin ;

Xiao, Shuyuan ;

Yi, Yougen .

SUPERLATTICES AND MICROSTRUCTURES, 2018, 120 :427-435

[6] Plasmonic absorption characteristics based on dumbbell-shaped graphene metamaterial arrays [J].

Cen, Chunlian ;

Chen, Jiajia ;

Liang, Cuiping ;

Huang, Jing ;

Chen, Xifang ;

Tang, Yongjian ;

Yi, Zao ;

Xu, Xibin ;

Yi, Yougen ;

Xiao, Shuyuan .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2018, 103 :93-98

[7] Plasmonic Absorption Enhancement in Elliptical Graphene Arrays [J].

Chen, Jiajia ;

Zeng, Yu ;

Xu, Xibin ;

Chen, Xifang ;

Zhou, Zigang ;

Shi, Pengcheng ;

Yi, Zao ;

Ye, Xin ;

Xiao, Shuyuan ;

Yi, Yougen .

NANOMATERIALS, 2018, 8 (03)

[8] Graphene-on-silver substrates for sensitive surface plasmon resonance imaging biosensors [J].

Choi, Seung Ho ;

Kim, Young L. ;

Byun, Kyung Min .

OPTICS EXPRESS, 2011, 19 (02) :458-466

[9]

Ding SY, 2016, NAT REV MATER, V1, DOI [10.1038/natrevmats.2016.71, 10.1038/natrevmats.2016.21]

[10] Photocurrent in graphene harnessed by tunable intrinsic plasmons [J].

Freitag, Marcus ;

Low, Tony ;

Zhu, Wenjuan ;

Yan, Hugen ;

Xia, Fengnian ;

Avouris, Phaedon .

NATURE COMMUNICATIONS, 2013, 4

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