论文摘要
A tunable perfect absorber composed of hexagonal-arranged aluminum nano-disk array embedded in the vanadium dioxide（VO2） film is proposed. The aim is to achieve the tunability of resonance absorption peak in the visible and near-infrared regimes. Numerical results reveal that the absorption peak achieves a large tunability of 76.6% while VO2 undergoes a structural transition from insulator phase to metallic phase. By optimizing the structural parameters, an average absorption of 95% is achieved from 1242 to 1815 nm at the metallic phase state. In addition, the near unity absorption can be fulfilled in a wide range of incident angle（0°–60°） and under all polarization conditions. The method and results presented here would be beneficial for the design of active optoelectronic devices.
论文目录
文章来源
类型: 期刊论文
作者: 周鹏,郑改革,陈云云,咸冯林,徐林华
来源: Chinese Physics Letters 2019年01期
年度: 2019
分类: 基础科学,工程科技Ⅰ辑
专业: 材料科学
单位: Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology,Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology,Nanjing University of Information Science & Technology
基金: Supported by the National Natural Science Foundation of China under Grant No 41675154,the Six Major Talent Peak Expert of Jiangsu Province under Grant Nos 2015-XXRJ-014 and R2016L01,the Jiangsu 333 High-Level Talent Cultivation Program under Grant No BRA2016425,the Research Innovation Program for College Graduates of Jiangsu Province under Grant No KYCX18_1022
分类号: TB34
页码: 24-28
总页数: 5
文件大小: 1911K
下载量: 26
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