Polarization conversion metasurface in terahertz region

doi:10.1088/1674-1056/ab9295

中国物理B ›› 2020, Vol. 29 ›› Issue (7): 78706-078706.doi: 10.1088/1674-1056/ab9295

所属专题： SPECIAL TOPIC —Terahertz physics

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇下一篇

Polarization conversion metasurface in terahertz region

Chen Zhou(周晨), Jiu-Sheng Li(李九生)

1 Centre for THz Research, China Jiliang University, Hangzhou 310018, China;
2 China Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, China

收稿日期:2020-03-29 修回日期:2020-04-24 出版日期:2020-07-05 发布日期:2020-07-05
通讯作者: Jiu-Sheng Li E-mail:jshli@126.com
基金资助:
Project supported by the National Key Research and Development Program of China (Grant No. 2016YFF0200306) and the National Natural Science Foundation of China (Grant Nos. 61871355 and 61831012).

Polarization conversion metasurface in terahertz region

Chen Zhou(周晨)¹, Jiu-Sheng Li(李九生)^1,2

1 Centre for THz Research, China Jiliang University, Hangzhou 310018, China;
2 China Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, China

Received:2020-03-29 Revised:2020-04-24 Online:2020-07-05 Published:2020-07-05
Contact: Jiu-Sheng Li E-mail:jshli@126.com
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2016YFF0200306) and the National Natural Science Foundation of China (Grant Nos. 61871355 and 61831012).

摘要/Abstract

摘要： Polarization conversion is a very important electromagnetic wave manipulation method. In this paper, we investigate a high-efficiency linear-to-circular polarization and cross-polarization converter by utilizing coding metasurface. The coding particle consists of top layer metal pattern and bottom metal plate sandwiched with square F4B dielectric, which can manipulate the linear-to-circular polarization and cross-polarization converter of the reflected wave simultaneously. In the terahertz frequency range of 1.0 THz-2.0 THz, the reflection magnitudes reach approximately 90% and the axial ratio is less than 3 dB. The proposed polarization converter may lead to advances in a variety of applications such as security, microscopy, information processing, stealth technology, and data storage.

关键词: terahertz wave, polarization conversion, metasurface

Abstract: Polarization conversion is a very important electromagnetic wave manipulation method. In this paper, we investigate a high-efficiency linear-to-circular polarization and cross-polarization converter by utilizing coding metasurface. The coding particle consists of top layer metal pattern and bottom metal plate sandwiched with square F4B dielectric, which can manipulate the linear-to-circular polarization and cross-polarization converter of the reflected wave simultaneously. In the terahertz frequency range of 1.0 THz-2.0 THz, the reflection magnitudes reach approximately 90% and the axial ratio is less than 3 dB. The proposed polarization converter may lead to advances in a variety of applications such as security, microscopy, information processing, stealth technology, and data storage.

Key words: terahertz wave, polarization conversion, metasurface

中图分类号: (Effects of electromagnetic and acoustic fields on biological systems)

87.50.-a

87.50.up (Dosimetry/exposure assessment) 87.10.Vg (Biological information)

周晨, 李九生. Polarization conversion metasurface in terahertz region[J]. 中国物理B, 2020, 29(7): 78706-078706.

Chen Zhou(周晨), Jiu-Sheng Li(李九生). Polarization conversion metasurface in terahertz region[J]. Chin. Phys. B, 2020, 29(7): 78706-078706.

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Polarization conversion metasurface in terahertz region

Polarization conversion metasurface in terahertz region

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