Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction

doi:10.1088/1674-1056/ab33f5

中国物理B ›› 2019, Vol. 28 ›› Issue (9): 94210-094210.doi: 10.1088/1674-1056/ab33f5

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction

Shao-He Li(李绍和), Jiu-Sheng Li(李九生)

Center for THz Research, China Jiliang University, Hangzhou 310018, China

收稿日期:2019-03-24 修回日期:2019-06-09 出版日期:2019-09-05 发布日期:2019-09-05
通讯作者: Jiu-Sheng Li E-mail:jshli@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61871355 and 61831012).

Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction

Shao-He Li(李绍和), Jiu-Sheng Li(李九生)

Center for THz Research, China Jiliang University, Hangzhou 310018, China

Received:2019-03-24 Revised:2019-06-09 Online:2019-09-05 Published:2019-09-05
Contact: Jiu-Sheng Li E-mail:jshli@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61871355 and 61831012).

摘要/Abstract

摘要：

The digital coding metasurfaces need several kinds of meta-particle structures to obtain corresponding electromagnetic wave responses and require time-consuming optimization. In this paper, we present train-symbol-shaped meta-particles with various orientations utilizing Pancharatnam-Berry (PB) phase to achieve 1-, 2-, and 3-bit digital coding metasurfaces. Terahertz wave scattering patterns of the coding metasurfaces with regular and random sequences are given and discussed. They have strongly suppressed backward scattering with approximately -13.5 dB radar cross section (RCS) reduction in a wide band range from 0.85 THz to 1.6 THz. The proposed digital coding metasurfaces provide a simple way and new opportunities for manipulating terahertz wave scattering with polarization independence.

关键词: terahertz metasurface, terahertz optics, terahertz polarization

Abstract:

Key words: terahertz metasurface, terahertz optics, terahertz polarization

中图分类号: (Scattering, polarization)

42.68.Mj

李绍和, 李九生. Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction[J]. 中国物理B, 2019, 28(9): 94210-094210.

Shao-He Li(李绍和), Jiu-Sheng Li(李九生). Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction[J]. Chin. Phys. B, 2019, 28(9): 94210-094210.

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Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction

Pancharatnam-Berry metasurface for terahertz wave radar cross section reduction

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