Planar metamaterial analogue of electromagnetically induced transparency for a miniature refractive index sensor

Li, Rong; Kong, Xiangkun; Liu, Shaobin; Liu, Zhiming; Li, Yumeng

doi:10.1016/j.physleta.2019.125947

Cited by 20 publications

(5 citation statements)

References 23 publications

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“…Therefore, the dark mode is only indirectly excited by the bright mode. Owing to the significant dispersion properties and the narrow transparency window, the EITlike metamaterials have essential applications in optical switches [22,23], slow-light devices [24,25], sensors [26][27][28], and so on. Tian et al [29] numerically and experimentally demonstrated a high transmittance and lowlosses EIT-like metamaterial, whose unit structure is composed of two independent opening ring resonators.…”

Section: Introductionmentioning

confidence: 99%

A high Q-factor metamaterial sensor based on electromagnetically induced transparency-like

Shen,

Zhang,

Zhang

2024

Mater. Res. Express

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This paper proposes the electromagnetically induced transparency-like (EIT-like) metamaterial with a high-quality factor (143.54), which consists of a square ring resonator (SRR) and a cross-shaped resonator (CR). The designed metamaterial generates a sharp transparency peak at 15.79 GHz. The electric field distributions reveal that appearance of the transparency window is caused by the coupling between bright mode and dark mode. Meanwhile, analysis of the surface current distributions verifies that the EIT-like effect is induced via the destructive interference of the electric dipoles . In addition, the metamaterial is equated to a circuit model, which provides a better fit to the simulated transmission spectrum. These theories fully explain the generation of the EIT-like phenomenon. Furthermore, the EIT-like metamaterial is able to detect the dielectric constant of the target analyte (glucose solution), and the sensing performance is calculated. The results demonstrate that the sensitivity (S) is 4.80 GHz/RIU and the figure of merit (FOM) reaches to 43.71. The proposed EIT-like metamaterial shows prominent sensing abilities, consequently it has potential applications in environmental monitoring, biological and chemical measurements.

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Section: Introductionmentioning

confidence: 99%

A high Q-factor metamaterial sensor based on electromagnetically induced transparency-like

Shen,

Zhang,

Zhang

2024

Mater. Res. Express

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“…The EIT effect drastically changes the refractive index of some materials that are opaque originally, making them transparent at a certain wavelength. This process produces a strong slow-light effect and enhances the nonlinear effect of the material, which enables them to be effectively applied to optical buffer [1,2] devices and refractive index sensing [3][4][5] and other fields.…”

Section: Introductionmentioning

confidence: 99%

Dielectric‐Based Electromagnetically Induced Transparency Metamaterial in the Microwave Band

Dong,

Gao,

Zhang

2023

Annalen der Physik

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An electromagnetically induced transparency metamaterial (EITM) based on dielectric resonators is presented in this paper, which consists of a cut wire (CW) and ten dielectric columns. Destructive interference between the CW, which is a branch of the microstrip line, and the dielectric resonators causes the EIT phenomenon. The simulation results show that the dielectric‐based EITM designed can obtain a transmission peak of 0.938 at 2.17 GHz, and the two‐oscillator model is utilized to verify the effectiveness of the structure. In addition, samples of the dielectric‐based EITM are also fabricated and the effectiveness of the metamaterial is experimentally verified. The proposed metamaterial has several advantages, including high efficiency, low loss, a simple structure, and ease of manufacture, which has good prospects for application in the fields of electromagnetic switches, sensors, and nonlinear metamaterials.

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“…Noble metals are considered the most promising SPP materials [ 2 ]. Therefore, various noble metal-based optical devices [ 3 , 4 , 5 , 6 , 7 ] have been studied in the visible range of light for future photonic integrated circuits. However, in the mid-infrared range, noble metal-based optical devices exhibit significantly weak EM field confinement and strong transmission losses, making them inefficient in this wavelength range.…”

Section: Introductionmentioning

confidence: 99%

Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene

et al. 2022

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A long-range surface plasmon polariton (SPP) waveguide, composed of double-layer graphene, can be pivotal in transferring and handling mid-infrared electromagnetic waves. However, one of the key challenges for this type of waveguide is how to excite the SPP modes through an incident light beam. In this study, our proposed design of a novel grating, consisting of a graphene-based cylindrical long-range SPP waveguide array, successfully addresses this issue using finite-difference time-domain simulations. The results show that two types of symmetric coupling modes (SCMs) are excited through a normal incident light. The transmission characteristics of the two SCMs can be manipulated by changing the interaction of the double-layer gratings of graphene as well as by varying various parameters of the device. Similarly, four SCMs can be excited and controlled by an oblique incident light because this light source is equivalent to two orthogonal beams of light. Furthermore, this grating can be utilized in the fabrication of mid-infrared optical devices, such as filters and refractive index sensors. This grating, with double-layer graphene arrays, has the potential to excite and manipulate the mid-infrared electromagnetic waves in future photonic integrated circuits.

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Planar metamaterial analogue of electromagnetically induced transparency for a miniature refractive index sensor

Cited by 20 publications

References 23 publications

A high Q-factor metamaterial sensor based on electromagnetically induced transparency-like

A high Q-factor metamaterial sensor based on electromagnetically induced transparency-like

Dielectric‐Based Electromagnetically Induced Transparency Metamaterial in the Microwave Band

Excitation of Surface Plasmon Polariton Modes with Double-Layer Gratings of Graphene

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