Results 141 to 150 of about 11,658 (306)

Subwavelength terahertz imaging via virtual superlensing in the radiating near field. [PDF]

Nat Commun, 2023
Tuniz A, Kuhlmey BT.
europepmc   +1 more source

Extreme‐Thickness Meta‐Membrane for Controlling Terahertz Vectorial Beams

Advanced Science, EarlyView.
We propose ultra‐thin (λ/30) transmissive terahertz metasurfaces combining near‐field resonant and detour phases in coupled‐slit meta‐atoms, enabling continuous phase and polarization control beyond conventional designs. Based on leaky‐mode theory, scalar and vectorial terahertz Bessel beams at 0.39 THz are experimentally demonstrated, with ...
Yufei Song, Yixiang Xu, Yikai Xu, Yuanxi Liu, Shaojie Ma, Qiong He, Zhuo Wang, Lei Zhou   +7 more
wiley   +1 more source

Non-Contact Blood Pressure Prediction Using Radar with a Lightweight Temporal Multi-Scale Feature Fusion Network

Sensors
Hypertension is a major global health issue, and continuous, convenient blood pressure monitoring is of great significance for early screening and intervention.
Yuhan Liu, Tianlin Zhang, Yonggang Luo, Liguo Zhou, Li Ding, Yinwei Li   +5 more
doaj   +1 more source

Terahertz imaging for non-invasive classification of healthy and cimiciato-infected hazelnuts. [PDF]

Heliyon, 2023
Gennari F, Pagano M, Toncelli A, Lisanti MT, Paoletti R, Roversi PF, Tredicucci A, Giaccone M.   +7 more
europepmc   +1 more source

Phase-aligned reference-acquisition method for terahertz imaging

, 2016
We propose a novel reference-acquisition method that provides precise phase alignment for terahertz imaging. The method significantly improves the accuracy of the extracted sample optical properties and greatly improves the experimental efficiency ...
Benjamin S.-Y Ung, Emma Pickwell-MacPherson, Parrott, E.P.J., Pickwell Macpherson, E., Xuequan Chen, Chen, X., Edward P. J. Parrott, Ung, B.S.Y.   +7 more
core   +1 more source

Sparse Pd–Te Covalent Bridges Drive Anomalous Bulk‐to‐Monolayer Electronic and Magnetic Evolution in FePd2Te2

Advanced Science, EarlyView.
Bulk FePd2Te2 contains sparse interlayer Pd–Te covalent bonds, giving it unexpectedly low exfoliation energy and enabling van der Waals‐like exfoliation. Cleaving these bonds during exfoliation makes the monolayer magnetically distinct from the bulk: magnetic anisotropy energy increases, and the strain‐response coefficient of the magnetic moment ...
Huaiyuan Zhao, Jianwen Fang, Mohan Luo, Yinuo Ye, Yulin Wang, Jianhui Yang, Hongwen Zhang, Peng Cheng   +7 more
wiley   +1 more source

Hidden-information extraction from layered structures through terahertz imaging down to ultralow SNR. [PDF]

Sci Adv, 2023
Cui Y, Xu Y, Han D, Wang X, Shen Z, Hou Y, Liang J, Wang X, Citrin DS, Zhang L, Nandi AK, Yan R, Chen X.   +12 more
europepmc   +1 more source

Terahertz spectral imaging and thermal sensing for biomedical applications

, 2017
We show a new contactless, non-invasive temperature and hyperspectral mapping method at terahertz (THz) frequencies capable of imaging the thermal and spatial distribution of a drug composite injected in a biological sample, as well as simultaneously ...
Razzari L., Breitenbom H., Govorov A. O., Piccoli R., Mazhorova A., Khorashad L. K., Morandotti R., Naccache R., Clerici M., Vetrone F.   +9 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Study on the Identification and Detection of Walnut Quality Based on Terahertz Imaging. [PDF]

Foods, 2022
Hu J, Shi H, Zhan C, Qiao P, He Y, Liu Y.   +5 more
europepmc   +1 more source