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A high-quality-factor ultra-narrowband perfect metamaterial absorber based on monolayer molybdenum disulfide |
| Liying Jiang(蒋黎英)1,†, Yingting Yi(易颖婷)2,†, Yijun Tang(唐轶峻)3, Zhiyou Li(李治友)1, Zao Yi(易早)1,‡, Li Liu(刘莉)1, Xifang Chen(陈喜芳)1, Ronghua Jian(简荣华)4, Pinghui Wu(吴平辉)5,§, and Peiguang Yan(闫培光)6 |
1 Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China;
2 College of Physics and Electronics, Central South University, Changsha 410083, China;
3 College of Science, Zhejiang University of Technology, Hangzhou 310023, China;
4 School of Science, Huzhou University, Huzhou 313000, China;
5 College of Physics and Information Engineering, Quanzhou Normal University, Quanzhou 362000, China;
6 College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China |
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Abstract In order to significantly improve the absorption efficiency of monolayer molybdenum disulfide (M-MoS2), an ultra-narrowband M-MoS2 metamaterial absorber was obtained through theoretical analysis and numerical calculation using the finite difference time domain method. The physical mechanism can be better analyzed through critical coupling and guided mode resonance. Its absorption rate at λ = 806.41 nm is as high as 99.8%, which is more than 12 times that of bare M-MoS2. From the simulation results, adjusting the geometric parameters of the structure can control the resonant wavelength range of the M-MoS2. In addition, we also found that the maximum quality factor is 1256.8. The numerical result shows that the design provides new possibilities for ultra-narrowband M-MoS2 perfect absorbers in the near-infrared spectrum. The results of this work indicate that the designed structure has excellent prospects for application in wavelength-selective photoluminescence and photodetection.
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Received: 08 May 2021
Revised: 21 July 2021
Accepted manuscript online: 17 August 2021
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PACS:
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81.05.Xj
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(Metamaterials for chiral, bianisotropic and other complex media)
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02.70.Bf
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(Finite-difference methods)
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33.20.Ea
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(Infrared spectra)
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42.79.Ta
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(Optical computers, logic elements, interconnects, switches; neural networks)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11604311, 61705204, and 21506257), the Scientific Research Fund of SiChuan Provincial Science and Technology Department, China (Grant Nos. 2020YJ0137 and 2020YFG0467), the National Defense Science and Technology Innovation Special Zone Project of China (Grant No. 19-163-21-TS-001-067-01), and the College Students's Innovation and Entrepreneurship Training Program (Grant No. S202110619065). |
Corresponding Authors:
Zao Yi, Pinghui Wu
E-mail: yizaomy@swust.edu.cn;phwu@zju.edu.cn
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Cite this article:
Liying Jiang(蒋黎英), Yingting Yi(易颖婷), Yijun Tang(唐轶峻), Zhiyou Li(李治友),Zao Yi(易早), Li Liu(刘莉), Xifang Chen(陈喜芳), Ronghua Jian(简荣华),Pinghui Wu(吴平辉), and Peiguang Yan(闫培光) A high-quality-factor ultra-narrowband perfect metamaterial absorber based on monolayer molybdenum disulfide 2022 Chin. Phys. B 31 038101
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