太赫兹辐射
偏振器
光学
分束器
极化(电化学)
可重构性
二氧化二钒
材料科学
光电子学
计算机科学
物理
纳米技术
双折射
激光器
电信
薄膜
化学
物理化学
作者
Jingwen Li,Xiao Li,Jiaqing Liu,Daxing Dong,Youwen Liu,Yangyang Fu
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-07-25
卷期号:47 (16): 4207-4207
被引量:1
摘要
Metasurfaces with phase-change materials have provided a promising way to achieve switchable and diverse wave control at terahertz (THz) frequencies. However, most of these reconfigurable metasurfaces are designed by complex structures that are challenged by the experimental feasibility. Here we propose a simple metagrating structure made of vanadium dioxide to realize reconfigurable manipulation of THz waves. Different from previous works, an inverse-design method is adopted to construct the metagrating, which enables multifunctional and switchable wave functions of THz waves including the switch between a perfect retroreflector and a high-efficiency absorber, polarization beam splitter, and linear polarizer. Our work provides a neat and effective method to achieve reconfigurable and multifunctional wave phenomena in a single meta-device, which may find applications in polarization control, remote sensing, and object detection.
科研通智能强力驱动
Strongly Powered by AbleSci AI