Dual-band perfect absorber based on a graphene/hexagonal boron nitride van der Waals hybrid structure

被引：9
|
作者：
Luo, Xin [1 ]
Cheng, Ziqiang [1 ]
Liu, Zhimin [1 ]
Xu, Liang [2 ]
Zhai, Xiang [3 ]
Wan, Wenqiang [1 ]
Zhou, Yanhong [1 ]
机构：
[1] East China Jiaotong Univ, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China
[2] Jiangxi Univ Sci & Technol, Sch Energy & Mech Engn, Energy Mat Comp Ctr, Nanchang 330013, Jiangxi, Peoples R China
[3] Hunan Univ, Sch Phys & Elect, Key Lab Micro Nano Optoelect Devices, Minist Educ, Changsha 410082, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2021年 / 54卷 / 37期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
plasmonics; absorption; thin films; optical properties; ABSORPTION ENHANCEMENT; MOLYBDENUM-DISULFIDE; TERAHERTZ ABSORBER; BLACK PHOSPHORUS; GRAPHENE; LIGHT; POLARITONS; HETEROSTRUCTURES; PLASMONICS; CRYSTALS;
D O I：
10.1088/1361-6463/ac0ca3
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A dual-band perfect optical absorber based on the graphene/hexagonal boron nitride van der Waals hybrid structure is proposed in the mid-infrared band. According to the results of the finite-difference time-domain method, dual-band perfect absorption peaks are formed at 7103 nm and 7499 nm, respectively, which also can be separately shifted in a wide wavelength region by varying some key structural parameters. Moreover, our proposed structure manifests polarization sensitivity and can maintain good optical absorption performance for wide angles of incidence.
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页数：6
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