TY - JOUR
T1 - High-Efficiency Dielectric Metasurfaces for Polarization-Dependent Terahertz Wavefront Manipulation
AU - Zhang, Huifang
AU - Zhang, Xueqian
AU - Xu, Quan
AU - Tian, Chunxiu
AU - Wang, Qiu
AU - Xu, Yuehong
AU - Li, Yanfeng
AU - Gu, Jianqiang
AU - Tian, Zhen
AU - Ouyang, Chunmei
AU - Zhang, Xixiang
AU - Hu, Cong
AU - Han, Jiaguang
AU - Zhang, Weili
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the National Basic Research Program of China (Grant No. 2014CB339800), the National Science Foundation of China (Grant Nos. 61605143, 61422509, 61622505, 61675145, and 61420106006), the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT13033), the Major National Development Project of Scientific Instruments and Equipment (Grant No. 2011YQ150021), and the Guangxi Key Laboratory of Automatic Detecting Technology and Instruments (YQ17203).
PY - 2017/11/30
Y1 - 2017/11/30
N2 - Recently, metasurfaces made up of dielectric structures have drawn enormous attentions in the optical and infrared regimes due to their high efficiency and designing freedom in manipulating light propagation. Such advantages can also be introduced to terahertz frequencies where efficient functional devices are still lacking. Here, polarization-dependent all-silicon terahertz dielectric metasurfaces are proposed and experimentally demonstrated. The metasurfaces are composed of anisotropic rectangular-shaped silicon pillars on silicon substrate. Each metasurface holds dual different functions depending on the incident polarizations. Furthermore, to suppress the reflection loss and multireflection effect in practical applications, a high-performance polarization-independent antireflection silicon pillar array is also proposed, which can be patterned at the other side of the silicon substrate. Such all-silicon dielectric metasurfaces are easy to fabricate and can be very promising in developing next-generation efficient, compact, and low-cost terahertz functional devices.
AB - Recently, metasurfaces made up of dielectric structures have drawn enormous attentions in the optical and infrared regimes due to their high efficiency and designing freedom in manipulating light propagation. Such advantages can also be introduced to terahertz frequencies where efficient functional devices are still lacking. Here, polarization-dependent all-silicon terahertz dielectric metasurfaces are proposed and experimentally demonstrated. The metasurfaces are composed of anisotropic rectangular-shaped silicon pillars on silicon substrate. Each metasurface holds dual different functions depending on the incident polarizations. Furthermore, to suppress the reflection loss and multireflection effect in practical applications, a high-performance polarization-independent antireflection silicon pillar array is also proposed, which can be patterned at the other side of the silicon substrate. Such all-silicon dielectric metasurfaces are easy to fabricate and can be very promising in developing next-generation efficient, compact, and low-cost terahertz functional devices.
UR - http://hdl.handle.net/10754/626644
UR - http://onlinelibrary.wiley.com/doi/10.1002/adom.201700773/full
UR - http://www.scopus.com/inward/record.url?scp=85036576837&partnerID=8YFLogxK
U2 - 10.1002/adom.201700773
DO - 10.1002/adom.201700773
M3 - Article
SN - 2195-1071
VL - 6
SP - 1700773
JO - Advanced Optical Materials
JF - Advanced Optical Materials
IS - 1
ER -