Review on the terahertz metasensor: from featureless refractive index sensing to molecular identification

Photonics Research, Journal Year: 2023, Volume and Issue: 12(2), P. 194 - 194

Published: Dec. 4, 2023

The terahertz (THz) wave is at the intersection between photonics and electronics in electromagnetic spectrum. Since vibration mode of many biomedical molecules weak interaction inside fall THz regime, utilizing radiation as a signal source to operate substance information sensing has its unique advantages. Recently, metamaterial sensor (metasensor) greatly enhanced substances spectral selectivity on subwavelength scale. However, most past review articles have demonstrated metasensor terms their structures, applications, or materials. Until recently, with rapid development metasensing technologies, molecular paid much more attention platform metasensors. In this review, we comprehensively introduce for detecting not only featureless refractive index but also vibrational/chiral analytes. objectives are improve specificity either by chemical material-assisted analyte capture physical information. Later, boost absorption features certain frequency, resonant responses metasensors can be tuned vibrational modes target molecules, while frequency multiplexing techniques reviewed enhance broadband spectroscopic fingerprints. chiral summarized specific identification molecules. Finally, potential prospects next generation discussed. Compared metasensing, platforms accelerated material modification will lead greater impact advancement trace detection conformational dynamics biomolecules practical applications.

Language: Английский

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Designing a Graphene Metasurface Organic Material Sensor for Detection of Organic Compounds in Wastewater

Biosensors, Journal Year: 2023, Volume and Issue: 13(8), P. 759 - 759

Published: July 26, 2023

In many fields, such as environmental monitoring, food safety, and medical diagnostics, the identification of organic compounds is essential. It crucial to create exceptionally sensitive selective sensors for detection in order safeguard environment human health. Due its outstanding electrical, mechanical, chemical characteristics, two-dimensional carbon substance graphene has recently attracted much attention use sensing applications. The purpose this research an material sensor made from substances like phenol, ethanol, methanol, chloroform, etc. high surface-to-volume ratio potent interactions with molecules, improves sensor's performance while metasurface structure enables design highly elements. suggested accurate at detecting a broad spectrum making it appropriate number creation potential have substantial impact on field increase safety food, medicine, environment. (GMOMS) was categorized into three types denoted GMOMS1, GMOMS2, GMOMS3 based specific application (GCP). GCP applied both CSRR CS surfaces. surface surrounding outer region CSRR. GMOMS3, surface. results show that all designs exhibit relative sensitivity, maximum values ranging 227 GHz/RIU achieved by GMOMS1 4318 GMOMS3. FOM range 2.038 RIU-1 GMOMS2 31.52 which considered ideal paper.

Language: Английский

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The emergence of density functional theory for supercapacitors: Recent progress and advances

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 73, P. 109100 - 109100

Published: Oct. 12, 2023

Language: Английский

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Mathematical modeling of mixed convective MHD Falkner-Skan squeezed Sutterby multiphase flow with non-Fourier heat flux theory and porosity

Applied Mathematics and Mechanics, Journal Year: 2023, Volume and Issue: 44(11), P. 2005 - 2018

Published: Oct. 31, 2023

Language: Английский

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Unsteady magneto-hydro-dynamics flow of Jeffrey fluid through porous media with thermal radiation, Hall current and Soret effects

Journal of Magnetism and Magnetic Materials, Journal Year: 2023, Volume and Issue: 582, P. 171033 - 171033

Published: July 13, 2023

Language: Английский

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Terahertz sensors for next generation biomedical and other industrial electronics applications: A critical review

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: 369, P. 115169 - 115169

Published: Feb. 10, 2024

Language: Английский

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Machine learning and multi-criteria decision analysis for polyethylene air-gasification considering energy and environmental aspects

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 183, P. 46 - 58

Published: Jan. 5, 2024

Language: Английский

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Advances in MEMS, Optical MEMS, and Nanophotonics Technologies for Volatile Organic Compound Detection and Applications

Small Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Volatile organic compounds (VOCs) are a class of with high vapor pressure and low boiling points, widely present in both natural environments human activities. VOCs released from various sources not only contribute to environmental pollution but also pose threats ecosystems health. Moreover, some considered biomarkers exhaled breath can be utilized identify diseases. Therefore, monitoring controlling VOC emissions concentrations crucial for safeguarding the environment In recent years, significant advancements have been achieved micro‐electromechanical system (MEMS)‐based sensing optical technologies, offering new avenues detection. This article provides comprehensive overview research progress MEMS sensors, focusing on their mechanisms classifications. It then discusses role artificial intelligence enhancing identification quantification, as well trends toward sensor miniaturization intelligence. Furthermore, highlights diverse applications sensors medical diagnostics, agricultural food testing, Internet Things. Finally, it emphasizes opportunities challenges associated providing valuable insights practical applications.

Language: Английский

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Modelling and validation of liquefaction potential index of fine-grained soils using ensemble learning paradigms

Soil Dynamics and Earthquake Engineering, Journal Year: 2023, Volume and Issue: 177, P. 108399 - 108399

Published: Dec. 15, 2023

Language: Английский

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Vanadium dioxide thin films-assisted terahertz meta-surface for simultaneous absorption, polarization conversion bi-functional switching, and wavefront operation

Results in Physics, Journal Year: 2023, Volume and Issue: 53, P. 106970 - 106970

Published: Sept. 20, 2023

Actively switchable metasurfaces are extremely useful for achieving a multifunctional integrated platform. The proposed design enables functional switching through the temperature-induced phase transition features of vanadium dioxide (VO2). hypothesized metasurface can be considered broadband absorber when VO2 is in metallic phase, with an absorption rate approaching 90% frequency spectrum 1.41–2.69 THz, according to numerical simulations. When insulating acts as half-wave plate more than 80% polarization conversion (PCR) range 0.71–2.72 THz. Furthermore, dynamic modulation absorbance and PCR achieved conductivity varies within specific range. Finally, by changing opening angle gold split-ring resonator introduce abrupt at interface, composed metacell perform arbitrary manipulation reflected beams 1.0–2.2 THz range; we also 1D 2D focusing metalenses. Both have good subwavelength characteristics. Therefore, effectively applied sixth-generation communication systems, terahertz imaging, other technologies.

Language: Английский

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