Active manipulation of plasmon-induced transparency based on a BiFeO3/Si hybrid metasurface in the terahertz range

被引：2

作者：

Yue, Jin ^{[1
]}

Chen, Songlin ^{[2
]}

Ling, Furi ^{[1
,2
]}

Yao, Jianquan ^{[1
,3
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China

[3] Tianjin Univ, Sch Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 853卷

关键词：

Terahertz modulation; Plasmon-induced transparency; Metasurface; BiFeO3; film; ELECTROMAGNETICALLY INDUCED TRANSPARENCY; POLARIZATION; ANALOG; METAMATERIALS; WAVES; PHASE;

D O I：

10.1016/j.jallcom.2020.157274

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, we demonstrate a plasmon-induced transparency (PIT) sample based on a hybrid structure of a metasurface/BiFeO3/Si, which is theoretically and experimentally investigated in the terahertz range. A distinct transparency window can be available in the transmission spectra, which originates from the near-field coupling of two resonators. A modulation depth of 82% can be obtained at the transparency window through tuning the optical pumping power. The photo-excited carriers suppress the resonances of the two bright modes, then the transparency window of the PIT metasurface is nearly disappeared. This work provides a new perspective on exploring the multiferroic material BiFeO3 as well as expanding the practical applications of BFO-based functional devices in the terahertz range. (c) 2020 Elsevier B.V. All rights reserved.

引用

页数：7

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