Tunable Chiral Metamaterial for Polarization Control in Microwave Region

Seyfi, Valentin A.; Gayduk, Alexey E.; Prinz, V. Ya.

doi:10.1109/edm49804.2020.9153342

Cited by 1 publication

(2 citation statements)

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“…Whereas the decrease in the equivalent capacitance is somewhat less than the increase in the inductance, as a result, a decrease in the resonant frequency is obtained [56]. Further according to the transmission phase relation reported in [57]: (7) where εr and λ are the dielectric constant and wavelength, respectively. The ratio h/λ remains fixed with constant values of εr, α, and θ.…”

Section: Sensitivity Analysis For Cancer Early Detectionmentioning

confidence: 96%

“…This unit cell consists of a layer of dielectric material sandwiched between the metallic ground and upper metallic patches. Metamaterials are designed to obtain unique electromagnetic properties such as perfect absorbers [1], [2], [3], solar cells [4], [5], polarization control [6], [7], and sensors [8], [9]. Tiny changes in the surroundings of the metamaterial sensor cause a variation in the electromagnetic response like optical absorption and resonance frequency.…”

Section: Introductionmentioning

confidence: 99%

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Highly Sensitive Triple-Band THz Metamaterial Biosensor for Cancer Cell Detection

Elhelw,

Ibrahim,

Rashed

et al. 2023

IEEE Photonics J.

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Abstract-Highly sensitive triple-band metamaterial-based biosensor for different cancer cells detection is suggested and numerically analyzed. The reported sensor has a polyimide dielectric layer which is sandwiched between gold bottom plane and top metallic patches. The analyte sample covers the metallic patch where multiple resonances occur with high absorption. The resonance frequencies depend on the optical properties of the analyte sample. Therefore, the proposed sensor can distinguish between different cancer cell types such as skin cancer, blood cancer, and Breast cancer. Full vectorial finite element method is used to study the effects of the geometrical parameters with the aim to maximize the sensor sensitivity. The suggested sensor has high sensitivity of 2050 GHz/RIU (which is much higher than those suggested in the literature) with high quality factor of 55.34 in the frequency range from 4.25 THz to 4.75 THz. Further, the proposed biosensor is a label-free, and easy for fabrication using the state-of-the-art fabrication technologies.

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Section: Sensitivity Analysis For Cancer Early Detectionmentioning

confidence: 96%