DataVXAdvanced Optical MaterialsPaper
journal article·2018-01

High‐Efficiency Dielectric Metasurfaces for Polarization‐Dependent Terahertz Wavefront Manipulation

Huifang Zhang, Xueqian Zhang, Quan Xu, Chunxiu Tian, Qiu Wang, Yuehong Xu, Yanfeng Li, Jianqiang Gu, Zhen Tian, Chunmei Ouyang, Xixiang Zhang, Cong Hu, Jiaguang Han, Weili Zhang

Advanced Optical Materials· Volume 6· Issue 1
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Source abstract

Abstract

Abstract 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.
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Research context

OpenAlex topics: Metamaterials and Metasurfaces Applications · Advanced Antenna and Metasurface Technologies · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering and the Key Laboratory of Optoelectronics Information and Technology Tianjin University Tianjin 300072 P. R. China

Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal 23955‐6900 Saudi Arabia

Guangxi Key Laboratory of Automatic Detecting Technology and Instruments Guilin University of Electronic Technology Guilin 541004 P. R. China

School of Electrical and Computer Engineering Oklahoma State University Stillwater OK 74078 USA

Funding

National Basic Research Program of China · National Science Foundation of China · Program for Changjiang Scholars and Innovative Research Team in University · Major National Development Project of Scientific Instruments and Equipment · Guangxi Key Laboratory of Automatic Detecting Technology and Instruments

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