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Angle-sensitive dynamic optical modulation based on Huygens metasurfaces
Results in Physics ( IF 5.3 ) Pub Date : 2020-07-07 , DOI: 10.1016/j.rinp.2020.103226
Jingjun Wu , Feng Tang , Jun Ma , Qingzhi Li , Sihui Shang , Jun Chen , Yiman Wu , Yiqun Wang , Xin Ye , Wanguo Zheng , Rihong Zhu

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.



中文翻译:

基于惠更斯超表面的角度敏感动态光调制

近来,动态超表面由于其在外部调谐时能够主动控制电磁波的能力而引起了极大的关注。由于调制深度非常有限,因此高性能基于动态超表面的设备的实现仍然是一个巨大的挑战。在此,基于惠更斯超表面,通过介质谐振器和相变材料(二氧化钒,VO 2的组合)实现了对传输波的高效主动控制。)。在惠更斯模式波长下,超颖表面显示出82.5%的透射率和〜80%的调制深度。此外,在法向入射下它表现出角度敏感性和偏振无关性。拟议的超颖表面为光开关,滤波,无源温度控制调制提供了一种新方法,它将为集成光学设备,近红外光检测和智能温度控制系统提供广阔的应用前景。

更新日期:2020-07-07
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