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Extremely asymmetric absorption and reflection near the exceptional point for three-dimensional metamaterial

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成果类型:
期刊论文
作者:
Wu, Yanjie;Zhang, Ding;Li, Qiuyu;Lin, Hai;Shi, Xintong;...
通讯作者:
Lin, H;Liu, Y
作者机构:
[Wu, Yanjie; Lin, Hai; Xiong, Jie; Lin, H; Shi, Xintong; Li, Qiuyu] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China.
[Wu, Yanjie; Hu, Haoquan; Tian, Jing] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 611731, Sichuan, Peoples R China.
[Wu, Bian; Zhang, Ding] Xidian Univ, Natl Key Lab Antennas & Microwave Technol, Xian 710071, Shaanxi, Peoples R China.
[Xiong, Jie] HuangGang Normal Univ, Sch Phys & Telecommun, Huanggang 438000, Hubei Province, Peoples R China.
[Liu, Y.] Hubei Univ, Sch Phys, Dept Phys, Wuhan 430062, Hubei, Peoples R China.
通讯机构:
[Lin, H ] C
[Liu, Y ] H
Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China.
Hubei Univ, Sch Phys, Dept Phys, Wuhan 430062, Hubei, Peoples R China.
语种:
英文
关键词:
exceptional point;non-Hermitian system;three-dimensional metamaterial;equivalent circuit model
期刊:
Journal of Physics D: Applied Physics
ISSN:
0022-3727
年:
2024
卷:
57
期:
36
页码:
365101
基金类别:
Open fund of China Ship Development and Design Centre; National Natural Science Foundation of China [U20B2043, 62001095, 11804087]; Self-determined Research Funds of CCNU from the Colleges' Basic Research and Operation of MOE [CCNU19TS073, CCNU20GF004, CCNU23CG016]; Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing, Guilin University of Electronic Technology [GXKL06190202]; Science and Technology Research Project of Hubei Education Department [D20222903, HQ202104001]; Hubei University [X202210512039, 030-017643]; Hubei Province Technology Innovation Plan Key Research and Development Project [2023BAB061]; [XM0120190196]
机构署名:
本校为第一且通讯机构
院系归属:
物理科学与技术学院
摘要:
In recent years, particular physical phenomena enabled by non-Hermitian metamaterial systems have attracted significant research interests. In this paper, a non-Hermitian three-dimensional metamaterial near the exceptional point (EP) is proposed to demonstrate extremely asymmetric absorption and reflection. Unlike its conventional counterparts, this proposed metamaterial is constructed with a loss-assisted design. Localized losses are introduced into the structure by combining our technique of graphene-based resistive inks with conventional printed circuit board process. Extremely asymmetric a...

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