Tunable Dual-Frequency Perfect Absorber with Graphene

doi:10.13438/j.cnki.jdzk.2023.06.007

Abstract

Abstract: A tunable dual-frequency perfect absorber consisting of a graphene resonator,a SiO₂dielectric layer and a metal reflector layer has been designed by utilizing the excellent tunable optical properties of graphene.The effects of graphene chemical potential,polarization angle and size on the absorber absorption performance were systematically investigated,and the electric field pattern at the resonance frequency was analyzed to further explain the principle of absorber absorption.The results show that the absorber has an absorption rate of 99.98% and 99.99% at 6.363 and 8.987,respectively.The absorption peak position of the absorber can be effectively adjusted by changing the chemical potential of graphene,and the peak absorption rate can reach more than the peak absorption rate at any polarization angle in the range of 0°~80°.The thickness of the SiO₂ dielectric layer has almost no effect on the resonance peak position of this absorber,but it has some effect on the peak absorption rate,which increases and then decreases with the gradual increase of the thickness,and perfect absorption is achieved near the thickness of 3.1 μm.The high absorption rate of this absorber stems mainly from the electromagnetic resonance effect.

Key words: metamaterials, terahertz, graphene, dual-band absorber

ZHAO Jinyun, SHAN Xinyu, GAO Guangbo, HUANG Yonggang. Tunable Dual-Frequency Perfect Absorber with Graphene[J]. Journal of Jishou University(Natural Sciences Edition), 2023, 44(6): 37-43.

References

[1] VEAELAGO VICTOR G.The Electrodynamics of Substances with Simultaneously Negative Values of ε and μ[J].Soviet Physics Uspekhi,1968,10(4):509-514.
[2] PENDRY J B,HOLDEN A J,STEWART W J,et al.Extremely Low Frequency Plasmons in Metallic Mesostructures[J].Physical Review Letters,1996,76(25):4773-4776.
[3] PENDRY J B,HOLDEN A J,ROBBINS D J,et al.Magnetism from Conductors and Enhanced Nonlinear Phenomena[J].IEEE Transactions on Microwave Theory and Techniques,1999,47(11):2075-2084.
[4] PENG Kun,PARKINSON PATRICK,GAO Qian,et al.Single n⁺-i-n⁺ InP Nanowires for Highly Sensitive Terahertz Detection[J].Nanotechnology,2017,28(12):125202.DOI:10.1088/1361-6528/aa5d80.
[5] CHEN Fu,CHENG Yongzhi,LUO Hui.Temperature Tunable Narrow-Band Terahertz Metasurface Absorber Based on InSb Micro-Cylinder Arrays for Enhanced Sensing Application[J].IEEE Access,2020,8:82981-82988.
[6] DANIEL SALMAN,BAWUAH PRINCE.Right-Angle Shaped Elements as Dual-Band Metamaterial Absorber in Terahertz[J].Photonic Sensors,2020,10(3):233-241.
[7] XIA Shengxuan,ZHAI Xiang,HUANG Yu,et al.Multi-Band Perfect Plasmonic Absorptions Using Rectangular Graphene Gratings[J].Optics Letters,2017,42(15):3052-3055.
[8] SABRA WALIED,AZZAM SHAIMAA I,SONG Maowen,et al.Plasmonic Metasurfaces for Subtractive Color Filtering:Optimized Nonlinear Regression Models[J].Optics Letters,2018,43(19):4815-4818.
[9] XU Hui,LI Hongjian,HE Zhihui,et al.Theoretical Analysis of Optical Properties and Sensing in a Dual-Layer Asymmetric Metamaterial[J].Optics Communications,2018,407:250-254.
[10] WANG Yingying,CHEN Zeqiang,XU Danyang,et al.Triple-Band Perfect Metamaterial Absorber with Good Operating Angle Polarization Tolerance Based on Split Ring Arrays[J].Resultsin Physics,2020,16:102951.DOI:10.1016/j.rinp.2020.102951.
[11] XIE Qin,DONG Guangxi,WANG Benxin,et al.Design of Quad-Band Terahertz Metamaterial Absorber Using a Perforated Rectangular Resonator for Sensing Applications[J].Nanoscale Research Letters,2018,13(1):137.DOI:10.1186/s11671-018-2567-5.
[12] HAO Jiaming,WANG Jing,LIU Xianliang,et al.High Performance Optical Absorber Based on a Plasmonic Metamaterial[J].Applied Physics Letters,2010,96(25):4184-4187.
[13] PAN Wu,SHEN Tao,MA Yong,et al.Dual-Band and Polarization-Independent Metamaterial Terahertz Narrowband Absorber[J].Applied Optics,2021,60(8):2235-2241.
[14] KANG Yongqiang,ZHANG Jianguo,LIU Hongmei,et al.Tunable Dual-Band Metamaterial Absorber at Deep-Subwavelength Scale[J].Results in Physics,2021,27:104525.DOI:10.1016/j.rinp.2021.104525.
[15] LUO Hao,WANG Xi,QIAN Hang.Tunable Terahertz Dual-Band Perfect Absorber Based on the Combined InSb Resonator Structures for Temperature Sensing[J].Journal of the Optical Society of America B,2021,38(9):2638-2644.
[16] LIU Fei,HE Miao,DONG Zhenghua,et al.Design of Tunable Dual-Band Terahertz Perfect Absorber Base on Graphene[J].Resultsin Physics,2022,40:105860.DOI:10.2139/ssrn.4126934.
[17] CHEN Tao,JIANG Weijie,YIN Xianhua.Dual-Band Ultrasensitive Terahertz Sensor Based on Tunable Graphene Metamaterial Absorber[J].Superlattices Microstructures,2021,154:106898.DOI:org/10.1016/j.spmi.2021.106898.
[18] FU Pan,LIU Fei,REN Guangjun,et al.A Broadband Metamaterial Absorber Based on Multi-Layer Graphene in the Terahertz Region[J].Optics Communications,2018,417:62-66.
[19] SAJJAD MUHAMMAD,KONG Xiangkun,LIU Shaobin,et al.Graphene-Based THz Tunable Ultra-Wideband Polarization Converter[J].Physics Letters A,2020,384(23):126567.DOI:10.1016/j.physleta.2020.126567.
[20] HUANG Yuanyuan,YAO Zehan,HU Fangrong,et al.Tunable Circular Polarization Conversion and Asymmetric Transmission of Planar Chiral Graphene-Metamaterial in Terahertz Region[J].Carbon,2017,119:305-313.
[21] QING Yeming,MA Huifeng,REN Yongze,et al.Near-Infrared Absorption-Induced Switching Effect via Guided Mode Resonances in a Graphene-Based Metamaterial[J].Optics Express,2019,27(4):5253-5263.
[22] PIPER JESSICA R,FAN SHANHUI.Total Absorption in a Graphene Monolayer in the Optical Regime by Critical Coupling with a Photonic Crystal Guided Resonance[J].Acs Photonics,2014,1(4):347-353.
[23] LI Sijia,WU Pengxin,XU Hexiu,et al.Ultra-Wideband and Polarization-Insensitive Perfect Absorber Using Multilayer Metamaterials,Lumped Resistors,and Atrong Coupling Effects[J].Nanoscale Research Letters,2018,13:1-13.