Liquid chemical adulteration detection enhancement using a square enclosed Tri-Circle negative index metamaterial sensor

Khalil, Muhammad Amir; Yong, Wong Hin; Hoque, Ahasanul; Islam, Md. Shabiul; Chiong, Lo Yew; leei, Cham Chin; Albadran, Saleh; Soliman, Mohamed S.; Islam, Mohammad Tariqul

doi:10.1016/j.jestch.2023.101582

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…[1][2][3] Nowadays, due to the advantages of fast response and precise real-time detection, a variety of optical RI sensors have been developed, which are widely used to monitor the tiny change of the chemical constituents (e.g., 10 −9 RIU, which corresponds to approximately 1 fmol/L of salt in water). [4][5][6] For example, Jian et al demonstrated the highly sensitive cell concentration detection by exploiting the resonant optical tunneling effect (ROTE), with a desirable sensitivity of 19 µm/RIU. [7] It is reported that the nano-dot enhanced plasmonic biosensor can detect the fractional changes of the electrolyte concentration and glucose concentration in human blood.…”

Section: Introductionmentioning

confidence: 99%

Multi-functional photonic spin Hall effect sensor controlled by phase transition

Cheng 程,

Li 李,

Cheng 程

et al. 2024

Chinese Phys. B

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Photonic spin Hall effect (PSHE), as a novel physical effect in light-matter interaction, provides an effective metrological method for characterizing the tiny variation in refractive index (RI). In this work, we proposed a multi-functional PSHE sensor based on VO2, a material that exhibits phase transition behavior. By applying thermal control, the mutual transformation on different phase states of VO2 can be realized, which contributes to the flexible switching between multiple RI sensing tasks. When VO2 is insulating, the ultrasensitive detection of glucose concentrations in human blood is achieved. When VO2 is in a mixed phase, the designed structure can discriminate the normal and cancer cells with no-label and real-time monitoring. When VO2 is metallic, the proposed PSHE sensor can act as a RI pointer for gas analytes. Compared with other multi-functional sensing devices with the complex structures, our design only consists of one analyte and two VO2 layers, which is very simple and elegant. Therefore, the proposed VO2-based PSHE sensor with outstanding advantages of small size, high sensitivity, no-label, and real-time detection, offers new ideas for the research of tunable multi-functional sensors.

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Section: Introductionmentioning

confidence: 99%

Multi-functional photonic spin Hall effect sensor controlled by phase transition

Cheng 程,

Li 李,

Cheng 程

et al. 2024

Chinese Phys. B

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A compact quad-square negative-index metamaterial: Design, simulation, and experimental validation for microwave applications

Khalil,

Yong,

Hoque

et al. 2024

APL Materials

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This research provides a detailed explanation of the design, simulation, and experimental of quad-square metamaterial-based negative-index unit cells for S-band applications. The Computer Simulation Technology 2022 licensee version was utilized to design and obtain numerical results for the unit cell. The proposed unit cell for the metamaterial has dimensions of 5 × 5 × 1.57 mm3. The substrate chosen was FR-4, resulting in a substantial effective medium ratio value of 19.07. A series of systematic parametric studies were conducted to optimize the quad square metamaterial structure. Key parameters, such as substrate types, unit cell arrays, thicknesses of substrate, and split gaps, were varied to determine their impact on the structure. The validated equivalent circuit result was compared to the simulated results, showing a significant agreement. The demonstrated correlation between simulation and experimental data highlights the dependability of the proposed quad-square metamaterial, positioning it as a viable option for a range of electromagnetic applications, such as communication systems, sensors, and imaging devices.

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Double negative (DNG) square-enclosed C.S.R.R. metamaterial for liquid sensing applications with high sensitivity

Miah,

Zafir,

Anowarul Haque

et al. 2024

2024 3rd International Conference on Advancement in Electrical and Electronic Engineering (ICAEEE)

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Liquid chemical adulteration detection enhancement using a square enclosed Tri-Circle negative index metamaterial sensor

Cited by 3 publications

References 33 publications

Multi-functional photonic spin Hall effect sensor controlled by phase transition

Multi-functional photonic spin Hall effect sensor controlled by phase transition

A compact quad-square negative-index metamaterial: Design, simulation, and experimental validation for microwave applications

Double negative (DNG) square-enclosed C.S.R.R. metamaterial for liquid sensing applications with high sensitivity

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