| Phase-Gradient Metasurfaces Based on Local Fabry–Pérot Resonances |
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| 作者姓名： | 曹燕燕 余博丞 伏洋洋 高雷 徐亚东 |
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| 作者单位： | 1. School of Physical Science and Technology Soochow University;2. College of Science Nanjing University of Aeronautics and Astronautics |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Grant Nos. 11974010,11604229 and 11774252)；;the Natural Science Foundation of Jiangsu Province (Grant Nos. BK20161210 and BK20171206)；;the China Postdoctoral Science Foundation(Grant No. 2018T110540)；;the Qinglan Project of Jiangsu Province of China (Grant No. BRA2015353)； |
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| 摘 要： | In this work,we present a new mechanism for designing phase-gradient metasurfaces(PGMs) to control an electromagnetic wavefront with high efficiency.Specifically,we design a transmission-type PGM,formed by a periodic subwavelength metallic slit array filled with identical dielectrics of different heights.It is found that when Fabry-Perot(FP) resonances occur locally inside the dielectric regions,in addition to the common phenomenon of complete transmission,the transmitted phase differences betwe...
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