Angle-sensitive dynamic optical modulation based on Huygens metasurfaces

Results in Physics

Wanguo Zheng¹  Feng Tang²  Jingjun Wu³  Qingzhi Li³  Xin Ye⁴  Yiqun Wang⁵  Jun Chen⁵  Yiman Wu⁵  Jun Ma⁵  Rihong Zhu⁵  Sihui Shang⁵ 

[1] Corresponding author.;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China;MIIT Key Laboratory of Advanced Solid Laser, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China;Nanofabrication Facility, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China;

关键词: Dynamic Huygens metasurfaces;    Angle sensitivity;    Phase change material VO2;    Optical modulation;   

DOI  :  

来源: DOAJ

【 摘 要 】

Recently, dynamic metasurfaces have attracted significant attention due to their ability to actively control electromagnetic waves upon external tunings. The realization of high performance dynamic metasurfaces-based devices remains a great challenge due to very limited modulation depths. Here based on the Huygens metasurfaces, the high efficient active control of transmitted wave was realized by the combination of dielectric resonators and a phase transition material (vanadium dioxide, VO2). At Huygens-mode wavelength, the metasurface demonstrated 82.5% transmission and ~80% modulation depth. Besides, it exhibits angle-sensitivity and polarization-independence under normal incidence. The proposed metasurface provides a new way for optical switching, filtering, passive temperature control modulation, which would possess broad application prospects for integrated optical devices, near-infrared photodetection, and smart temperature control systems.

【 授权许可】

Unknown