A dynamically switchable metamaterial device with multiple functions based on vanadium dioxide

IF 2.5 3区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2023-11-04 DOI:10.1016/j.photonics.2023.101197

Mengting Ma , Xuejun Lian , Jinping Tian , Rongcao Yang

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引用次数: 0

Abstract

Based on the phase transition properties of vanadium dioxide (VO₂), a metamaterial device is designed in this paper, which can achieve multiple switchable functions. When VO₂ is in the metallic state, the proposed device can realize broadband absorption with peak absorbance more than 90 % in the frequency range of 2.40–6.73 THz and broadband linear polarization conversion (LPC) with polarization conversion ratio (PCR) greater than 90% in the range of 1.80–4.21 THz, respectively, depending on whether the incidence of terahertz (THz) electromagnetic (EM) wave is from top side or bottom side. When VO₂ is in the insulated state, the proposed device can achieve LPC of half-reflection and half-transmission (HRHT) and transmissive linear-to-circular (LTC) polarization conversion. The study in this paper has guiding significance in the design of THz metamaterial devices with multiple functions.

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基于二氧化钒的多功能动态切换超材料器件

基于二氧化钒（VO2）的相变特性，本文设计了一种超材料器件，该器件可以实现多种可切换功能。当VO2处于金属态时，所提出的器件可以分别在2.40–6.73 THz的频率范围内实现峰值吸光度大于90%的宽带吸收和在1.80–4.21 THz的范围内实现偏振转换率大于90%的宽频带线性偏振转换（LPC），取决于太赫兹（THz）电磁（EM）波的入射是从顶侧还是从底侧。当VO2处于绝缘状态时，所提出的器件可以实现半反射半透射（HRHT）的LPC和透射线性到圆（LTC）偏振转换。本文的研究对设计具有多种功能的太赫兹超材料器件具有指导意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Photonics and Nanostructures-Fundamentals and Applications 工程技术-材料科学：综合

CiteScore

5.00

自引率

3.70%

发文量

审稿时长

62 days

期刊介绍： This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.