A Robust Equivalent Circuit Model for Magnetic Polaritons in SiC Grooves

被引：0

作者：

Li, Xiaowen ^{[1
,2
]}

Xu, Hao ^{[1
]}

Wen, Zhengji ^{[2
]}

Shi, Xi ^{[1
]}

Fan, Chenfang ^{[1
]}

He, Xiaoyong ^{[1
]}

Hao, Jiaming ^{[2
]}

Liu, Feng ^{[1
,3
]}

机构：

[1] Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Tech Phys, State Key Lab Infrared Phys, Shanghai 200083, Peoples R China

[3] Shanghai Normal Univ, Key Lab Submillimeter Astrophys, Shanghai 200234, Peoples R China

来源：

PLASMONICS | 2021年 / 16卷 / 06期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Magnetic polariton; LC circuit model; Parasitic capacitance; COHERENT THERMAL EMISSION; OPTICAL-PROPERTIES; PERFECT ABSORBERS; EXCITATION; LIGHT; CONFINEMENT; ABSORPTION; EMITTER; DESIGN;

D O I：

10.1007/s11468-021-01475-w

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：

We propose a robust equivalent circuit model for the accurate prediction of magnetic polariton (MP) resonances in SiC grooves. By considering the boundary effects and introducing a parasitic capacitance, the analytical results of the structural-dependent MP resonances are in good agreements with the numerical results calculated by finite difference time domain (FDTD) method. With the model, we further propose a MP absorber with a broad bandwidth successfully. We believe this robust circuit model offers us opportunities in the design of novel applications based on MPs such as filters, detectors, and coherent sources in the infrared fields.

引用

页码：2147 / 2153

页数：7

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