Results 131 to 140 of about 6,952,164 (288)

Engineering Large‐Grain Metal Halide Perovskite Films via Chemical Vapor Deposition for High‐Performance, Ultralow‐Noise Perovskite Photodetectors

open access: yesAdvanced Science, EarlyView.
Chemical vapor deposition produces large‐grain, phase‐pure CsPbBr3 films (grains up to 35 µm) with Drude‐like terahertz photoconductivity and twofold higher carrier mobility versus spin‐coated references. These microstructural advances translate into photodetectors with a detectivity of 8.4 × 1012 Jones, dark current below 1 pA cm−2, X‐ray sensitivity ...
Roel Vanden Brande   +14 more
wiley   +1 more source

A multi-scale spatial-frequency double branch network for terahertz ISAR image target classification

open access: yesDefence Technology
Inverse synthetic aperture radar (ISAR), as the core technology of high-resolution radar imaging, has significant application value in fields of marine monitoring, air reconnaissance and space target recognition due to its all-weather and long-range ...
Qiuyan Wang   +6 more
doaj   +1 more source

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

open access: yesHeliyon, 2023
Gennari F   +7 more
europepmc   +1 more source

Dynamically Tunable Exciton‐Photon Coupling via Multi‐Physics Field in Transition Metal Dichalcogenide Microcavities

open access: yesAdvanced Science, EarlyView.
Dynamic microcavities provide reversible control over exciton‐photon coupling in two‐dimensional TMDs through piezoelectric, electrical, thermal, and all‐optical tuning. By reshaping detuning, Rabi splitting, and polariton composition, these strategies enable adaptable polaritonic functions, including optical switching, polariton lasing, and ...
Jingwen Zhang   +7 more
wiley   +1 more source

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

open access: yesSensors
Hypertension is a major global health issue, and continuous, convenient blood pressure monitoring is of great significance for early screening and intervention.
Yuhan Liu   +5 more
doaj   +1 more source

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

open access: yesSci Adv, 2023
Cui Y   +12 more
europepmc   +1 more source

Bamboo‐Slip‐Inspired Conformal Reconfigurable Metasurfaces

open access: yesAdvanced Science, EarlyView.
Bamboo‐slip‐inspired conformal reconfigurable metasurface system. The structure is mainly composed of three parts, which are conformal metasurface, pattern reconfigurable antenna, and control components (such as Field Programmable Gate Array (FPGA)). Conformal metasurfaces draw inspiration from the design of ancient Chinese bamboo slips.
Qifan Li   +9 more
wiley   +1 more source

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

open access: yesAdvanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang   +10 more
wiley   +1 more source

Early detection of gastric cancer via high-resolution terahertz imaging system. [PDF]

open access: yesFront Bioeng Biotechnol, 2022
Shi H, Li T, Liu Z, Zhao J, Qi F.
europepmc   +1 more source

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

open access: yesAdvanced 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

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