Integral effective medium approach for a metamaterial with radially-inhomogeneous spherical inclusions

Rybin, Oleg; Khardikov, Vyacheslav V.

doi:10.1016/j.ijleo.2022.169768

Cited by 4 publications

(2 citation statements)

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“…To facilitate calculation of the effective parameters of periodic metamaterials, a number of homogenization theories and methods were proposed (see, e.g., Refs. [1][2][3][4][5][6]. Those methods differ from each other by, particularly, the way they calculate the average values of the local fields in the metamaterials.…”

Section: Introductionmentioning

confidence: 99%

Size Effects in Periodic Metamaterials

Gozhenko¹

2023

Preprint

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The optical properties of periodic electromagnetic metamaterials are considered as functions of their relative unit cell size d/λ. The reflection R and transmission T coefficients are numerically calculated for some realistic metamaterials in a wide range of their relative unit cell size values that comprises different operating regimes of the metamaterials. Peculiarities in R and T behavior are discussed and the causes of those peculiarities are outlined. The obtained results support the opinion on inapplicability of the very homogenization concept to metamaterials whose unit cell size is comparable to the incident wavelength, in contrast to some previously published results.

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Section: Introductionmentioning

confidence: 99%

Size Effects in Periodic Metamaterials

Gozhenko¹

2023

Preprint

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“…Direct approaches to cancer screening often rely on invasive processes or imaging methods with imperfect sensitivity and specificity. In recent years, there has been an increasing interest in taking advantage of advances in electromagnetic wave technology for accurate and non-invasive cancer detection in the THz regime [1][2][3][4][5]. There are other uses of metamaterial sensors in industry, such as fuel and oil adulteration detection [6], and in improving fifth-generation communication technology [7].…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of a Novel Corona-Shaped Metamaterial Biosensor for Cancer Cell Detection

Dadouche,

Mezache,

Tao

et al. 2023

Micromachines

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The early detection and diagnosis of cancer presents significant challenges in today’s healthcare. So, this research, suggests an original experimental biosensor for cell cancer detection using a corona-shaped metamaterial resonator. This resonator is designed to detect cancer markers with high sensitivity, selectivity, and linearity properties. By exploiting the unique properties of the corona metamaterial structure in the GHz regime, the resonator provides enhanced interaction of electromagnetic waves and improved detection skills. Through careful experimental, simulation, and optimization studies, we accurately demonstrate the resonator’s ability to detect cancer. The proposed detection system is capable of real-time non-invasive cancer detection, allowing for rapid intervention and better patient outcomes. The sensitivity value was confirmed through simulation, estimated at 0.1825 GHz/RIU. The results of two different simulation methods are used: the simulation software CST Studio Suite (version 2017) based on the finite element method (FEM), and the simulation software ADS (version 2019) based on the equivalent circuit method, thereby increasing confidence in the convergence of simulation and measurement results. This work opens new avenues for developing advanced detection technologies in the field of oncology, and paves the way for more effective cancer diagnosis. The experimental study verified that this realized sensor has very small frequency shifts, significantly small electrical dimension and miniaturization, high sensitivity, and good linearity. The suggested configurations showed a capacity for sensing cancer cells in the GHz regime.

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