Design of Extremely Sensitive Refractive Index Sensors in Infrared for Blood Glucose Detection

Chamoli, Sandeep Kumar

doi:10.1109/jsen.2020.2964715

Cited by 59 publications

(11 citation statements)

References 37 publications

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“…First, refractometric method is used for detecting the RI of glucose solution with known concentration to make a lineof-calibration. Here, the line-of-calibration of an aqueous solution of glucose is given as followed 25 :…”

Section: Results and Analysismentioning

confidence: 99%

Dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings

Wang

Gao

et al. 2021

Micro & Optical Tech Letters

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A dual-channel glucose concentration sensor based on coupled cross-stacked gratings is proposed. When the concentration of glucose solution is varied from 30 to 60 g/100 ml, the maximum values of the bulk sensitivity for peaks at longer and shorter resonance wavelength indicate approximately 615.57 and 262.94 nm/ RIU, respectively. Therefore, the sensitivity of channel at longer wavelength is increased by 234.42% compared with that of the shorter wavelength. Advantageously, the dual-channel sensor with different sensitivities can reduce measurement errors and noise effectively such as background noise and the fluctuation of the light source.

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Section: Results and Analysismentioning

confidence: 99%

Dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings

Wang

Gao

et al. 2021

Micro & Optical Tech Letters

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“…The response of the proposed NMMA is simulated for a different concentration between 0 g/100 ml to 50 g/100 ml. The refractive index (n) of the glucose concentration in water can be determined by using the refractometric method [31]. The following formula in Eq.…”

Section: Properties Of the Glucose Concentration Detection Of The Proposed Nmma Structure As Applicationsmentioning

confidence: 99%

Computational Investigation of Multiband EMNZ Metamaterial Absorber for Terahertz Applications

Hossain¹,

Samsuzzaman²,

Baharuddin³

et al. 2022

Computers, Materials &Amp; Continua

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This study presents an Epsilon Mu near-zero (EMNZ) nanostructured metamaterial absorber (NMMA) for visible regime applications. The resonator and dielectric layers are made of tungsten (W) and quartz (fused), where the working band is expanded by changing the resonator layer's design. Due to perfect impedance matching with plasmonic resonance characteristics, the proposed NMMA structure is achieved an excellent absorption of 99.99% at 571 THz, 99.50% at 488.26 THz, and 99.32% at 598 THz frequencies. The absorption mechanism is demonstrated by the theory of impedance, electric field, and power loss density distributions, respectively. The geometric parameters are explored and analyzed to show the structure's performance, and a near-field pattern is used to explain the absorption mechanism at the resonance frequency point. The numerical analysis method describes that the proposed structure exhibited more than 80% absorbability between 550 and 900 THz. The Computer Simulation Technology (CST Microwave Studio 2019) software is used to design the proposed structure. Furthermore, CST-HFSS interference is validated by the simulation data with the help of the finite element method (FEM). The proposed NMMA structure is also exhibits glucose concentration sensing capability as applications. So the proposed broadband absorber may have a potential application in THz sensing, imaging (MRI, thermal, color), solar energy harvesting, light modulators, and optoelectronic devices.

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“…11(a). The GSM layer refractive index (n) sets from the refractometric method depending on the concentration of glucose in water [76]. From the formula, n = n w + aC refractive index of glucose concentration can be determined.…”

Section: Glucose Concentration Sensing Proper-ties Of the Proposed Metamaterials Absorbermentioning

confidence: 99%

A Multi-Band Near Perfect Polarization and Angular Insensitive Metamaterial Absorber With a Simple Octagonal Resonator for Visible Wavelength

et al. 2021

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A multi-band, ultrathin, polarization-insensitive, near-perfect metamaterial absorber (PMA) has been proposed and substantiated numerically for solar thermophotovoltaic (STPV) systems which also can be used in some other applications. This kind of absorber currently drawing massive interest throughout the research of optics. Especially in solar harvesting metamaterial absorbers can give a huge boost in efficiency by intensifying the solar electromagnetic wave. Visible wavelength has been the key focus of the proposed design so that the structure can utilize solar energy proficiently. Aluminum (Al) and Gallium Arsenide (GaAs) have been chosen as materials for their higher electron mobility along with good temperature stability. The PMA is a three-layer metal-dielectric-metal called sandwiched structure. For proper characterization of the PMA absorber, extensive parametric inspections were carried out with underlying physics. The finite integration technique (FIT) in computer simulation technology microwave studio (CST MWS) is used to perform the numerical analysis and for verification finite element method (FEM) in COMSOL Multiphysics has been used along with interference theory model (ITM) for calculating the absorbance. The PMA shows 99.27%, 99.89%, 99.91%, and 99.06% perfect absorption at 454.75nm, 505.53nm, 568.72nm, and 600.85nm resonance wavelength in all three modes of waveguide propagation. The design also exhibits incident wave stability up to 60 • for both transverse electric (TE), and transverse magnetic (TM) wave modes. Excellent glucose concentration sensing ability was also observed with the proposed structure. So, the proposed PMA can be implemented in solar energy harvesting devices along with solar sensors or detectors, light trappers, light modulators, or light wavelength detectors.

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Design of Extremely Sensitive Refractive Index Sensors in Infrared for Blood Glucose Detection

Cited by 59 publications

References 37 publications

Dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings

Dual‐channel glucose concentration sensor based on coupled cross‐stacked gratings

Computational Investigation of Multiband EMNZ Metamaterial Absorber for Terahertz Applications

A Multi-Band Near Perfect Polarization and Angular Insensitive Metamaterial Absorber With a Simple Octagonal Resonator for Visible Wavelength

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