The 2023 terahertz science and technology roadmap

Journal of Physics D Applied Physics, Journal Year: 2023, Volume and Issue: 56(22), P. 223001 - 223001

Published: Feb. 23, 2023

Abstract Terahertz (THz) radiation encompasses a wide spectral range within the electromagnetic spectrum that extends from microwaves to far infrared (100 GHz–∼30 THz). Within its frequency boundaries exist broad variety of scientific disciplines have presented, and continue present, technical challenges researchers. During past 50 years, for instance, demands community substantially evolved with need advanced instrumentation support radio astronomy, Earth observation, weather forecasting, security imaging, telecommunications, non-destructive device testing much more. Furthermore, applications required an emergence technology laboratory environment production-scale supply in-the-field deployments ranging harsh ground-based locations deep space. In addressing these requirements, research development has related bridged transition between electronics photonics high operation demands. The multidisciplinary nature THz work was our stimulus creating 2017 Science Technology Roadmap (Dhillon et al J. Phys. D: Appl. 043001). As one might envisage, though, there remains explore both scientifically technically field continued develop expand rapidly. It is timely, therefore, revise previous roadmap in this 2023 version we provide update on key developments established areas important public benefit, highlight new emerging show particular promise. describe thus span fundamental research, such as astronomy emergent area quantum optics, highly applied commercially societally impactful subjects include 6G communications, medical climate monitoring prediction. Our vision draws upon expertise perspective multiple international specialists together overview likely facing science future decades. document written form accessible policy makers who wish gain current state art, non-specialist curious understand available challenges. A such, experts deliver ‘snapshot’ introduction status suggestions exciting directions. Ultimately, intend portray advantages benefits domain stimulate further exploration commercial realisation.

Language: Английский

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Roadmap of Terahertz Imaging 2021

Sensors, Journal Year: 2021, Volume and Issue: 21(12), P. 4092 - 4092

Published: June 14, 2021

In this roadmap article, we have focused on the most recent advances in terahertz (THz) imaging with particular attention paid to optimization and miniaturization of THz systems. Such systems entail enhanced functionality, reduced power consumption, increased convenience, thus being geared toward implementation real operational conditions. The article will touch upon advanced solid-state-based systems, including room temperature sensors arrays, as well their on-chip integration diffractive optical components. We cover current-state compact emission sources, both optolectronic electrically driven; emphasis is attributed beam-forming role imaging, holography spatial filtering, nano-imaging, computational imaging. A number techniques, such light-field homodyne spectroscopy, phase sensitive spectrometry, modulated continuous wave frequency combs, passive use artificial intelligence data processing optics development, be reviewed. This presents a structured snapshot current 2021 provides an opinion contemporary scientific technological challenges field, extrapolations possible further evolution

Language: Английский

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Advances in terahertz technology for cancer detection applications

Optical and Quantum Electronics, Journal Year: 2022, Volume and Issue: 55(2)

Published: Dec. 26, 2022

Language: Английский

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Terahertz Imaging and Sensing for Healthcare: Current Status and Future Perspectives

IEEE Access, Journal Year: 2023, Volume and Issue: 11, P. 18590 - 18619

Published: Jan. 1, 2023

There is a keen interest in the exploration of new generation emitters and detectors due to advancements innovation materials device processing technologies which have opened up frontiers Terahertz (THz) spectrum. Therefore, it necessary review developments THz technology for healthcare applications, their impact, implications prospects ongoing research development. This paper provides broad overview current status application imaging sensing domain. We present knowledge, identify existing challenges wide scale clinical adoption systems prospective opinions facilitate development towards optimized miniaturized biosensors that provide real operational convenience through emerging trends. Firstly, we an techniques exploit properties detection with emphasis on terahertz time domain spectroscopy (THz-TDS) Metamaterials. The mechanisms tissue image contrast biomedical applications particular, cancer reported. Secondly, outlook toward interface 4.0 its enabling explored next smart connected systems. Third, merits suggest pave way future research. Further, discuss recent advances contribution near-field based plasmonic, resonance metasurfaces, waveguides etc. breaking diffraction limit are convenient point care. bring researchers roadmap scope.

Language: Английский

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A Review of Non-Invasive Optical Systems for Continuous Blood Glucose Monitoring

Sensors, Journal Year: 2021, Volume and Issue: 21(20), P. 6820 - 6820

Published: Oct. 14, 2021

The prevalence of diabetes is increasing globally. More than 690 million cases are expected worldwide by 2045. Continuous blood glucose monitoring essential to control the disease and avoid long-term complications. Diabetics suffer on a daily basis with traditional monitors currently in use, which invasive, painful, cost-intensive. Therefore, demand for non-invasive, painless, economical, reliable approaches monitor levels increasing. Since last decades, many sensing technologies have been developed. Researchers scientists working enhancement these achieve better results. This paper provides an updated review some pioneering non-invasive optical techniques that proposed six years, including summary state-of-the-art error analysis validation techniques.

Language: Английский

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Terahertz Spectroscopic Analysis in Protein Dynamics: Current Status

Radiation, Journal Year: 2022, Volume and Issue: 2(1), P. 100 - 123

Published: Feb. 7, 2022

Proteins play a key role in living organisms. The study of proteins and their dynamics provides information about functionality, catalysis potential alterations towards pathological diseases. Several techniques are used for studying protein dynamics, e.g., magnetic resonance, fluorescence imaging techniques, mid-infrared spectroscopy biochemical assays. Spectroscopic analysis, based on the use terahertz (THz) radiation with frequencies between 0.1 15 THz (3–500 cm−1), was underestimated by community. In recent years, however, analysis both simple structures, such as polypeptide molecules, complex complexes, has been demonstrated. absorption spectrum some proteins: small molecules is dominated individual modes related to presence hydrogen bonds. For peptides, spectral concerns secondary structure, while globular viral glycoproteins, spectra also provide collective modes. this short review, we discuss results obtained investigations. particular, will illustrate advantages applications spectroscopy, pointing out complementary it may provide.

Language: Английский

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Skin Cancer Pathobiology at a Glance: A Focus on Imaging Techniques and Their Potential for Improved Diagnosis and Surveillance in Clinical Cohorts

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(2), P. 1079 - 1079

Published: Jan. 5, 2023

Early diagnosis is essential for completely eradicating skin cancer and maximizing patients' clinical benefits. Emerging optical imaging modalities such as reflectance confocal microscopy (RCM), coherence tomography (OCT), magnetic resonance (MRI), near-infrared (NIR) bioimaging, positron emission (PET), their combinations provide non-invasive data that may help in the early detection of cutaneous tumors surgical planning. Hence, they seem appropriate observing dynamic processes blood flow, immune cell activation, tumor energy metabolism, which be relevant disease evolution. This review discusses latest technological methodological advances techniques applied monitoring. In first instance, we will describe principle prospective applications most commonly used techniques, highlighting challenges opportunities implementation setting. We also highlight how complement molecular histological approaches sharpening characterization, laying ground more personalized patients.

Language: Английский

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Multi band square-shaped polarization-insensitive graphene-based perfect absorber

Optical and Quantum Electronics, Journal Year: 2024, Volume and Issue: 56(3)

Published: Jan. 27, 2024

Language: Английский

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Accurate graphene-based absorber for slight leakage detection of Radon and chloroform air-pollution

Results in Physics, Journal Year: 2025, Volume and Issue: unknown, P. 108196 - 108196

Published: March 1, 2025

Language: Английский

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Detection of volatile organic compounds: From chemical gas sensors to terahertz spectroscopy

Reviews in Analytical Chemistry, Journal Year: 2021, Volume and Issue: 40(1), P. 33 - 57

Published: Jan. 1, 2021

Abstract Volatile organic compounds are released by different sources causing air pollution. Moreover, some of these carbon-based chemicals considered as biomarkers in the exhaled breath individuals and can be used to identify various kinds diseases. Hence, increasing demand control quality human health has promoted development monitoring systems based on high-performance gas sensing structures. This review highlights achievements technologies for detection volatile compounds. Particularly, chemiresistive sensors terahertz spectroscopy method outlined. The progress research studies is discussed potential both techniques evaluated considering current challenges. Afterward, a brief summary also provided along with advances issues future investigations manufacturing highly sensitive selective systems.

Language: Английский

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