Results 81 to 90 of about 1,308 (208)

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Semiconductor superlattice photodetectors [PDF]

Superlattice photodetectors were investigated. A few major physical processes in the quantum-well heterostructures related to the photon detection and electron conduction mechanisms, the field effect on the wave functions and the energy levels of the ...
Chuang, S. L., Coleman, J. J., Hess, K., Leburton, J. P.   +3 more
core   +3 more sources

An integrated photonic-assisted phased array transmitter for direct fiber to mm-wave links. [PDF]

Nat Commun, 2023
Sanjari P, Aflatouni F.
europepmc   +1 more source

Functional Metal Complexes for Solar–Light‐Driven Energy Conversion

Advanced Materials, EarlyView.
This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin, Dou Luo, Miao Zhang, Wai‐Yeung Wong   +3 more
wiley   +1 more source

Analysis and design of ultra-wideband PRGW hybrid coupler using PEC/PMC waveguide model. [PDF]

Sci Rep, 2022
Mousavirazi Z, Ali MMM, Gheisanab HN, Denidni TA.   +3 more
europepmc   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Optics and Quantum Electronics [PDF]

, 1987
Contains reports on ten research projects.Joint Services Electronics Program (Contract DAALO3-86-K-0002)National Science Foundation (Grant ECS 83-05448)National Science Foundation (Grant ECS 83-10718)National Science Foundation (Grant ECS 82-11650 ...
Anderson, Kristin K., Dagli, Nadir, Fonstad, Clifton G., Jr., Fujimoto, James G., Haus, Hermann A., Huang, Wei-Ping, Ippen, Erich P., Liu, Ling-Yi, Molter-Orr, Lynn, Oho, Shigeru, Phillips, Mary R., Seif, Randa, Shirasaki, Masataka, Towe, Elias D., Whitaker, Norman A., Wong, Dilys L.   +15 more
core  

Antenna/Propagation Domain Self-Interference Cancellation (SIC) for In-Band Full-Duplex Wireless Communication Systems. [PDF]

Sensors (Basel), 2022
Chen Y, Ding C, Jia Y, Liu Y.
europepmc   +1 more source

High‐Gain Ag2Te/MoS2 Hybrid Photodetectors for Short‐Wave Infrared Imaging

Advanced Materials, EarlyView.
A precision‐engineered short‐wave infrared image sensor based on a 0D/2D Ag2Te/MoS2 hybrid structure is demonstrated in this work. The device exploits photodoping at the nanoscale interface to achieve broadband detection from visible to infrared wavelengths with high responsivity and fast response.
Seock‐Jin Jeong, Hyun Woo Ko, Suyeon Jo, Joicy Selvaraj, Jung‐Min Kim, Namji Lee, Jae‐Hyeon Ahn, Hyeonchae Lee, Seungmin Jeong, Heedae Kim, Paul Hongsuck Seo, Jae Won Shim, Yonghun Kim, Hyun‐Soo Ra, Min‐Chul Park, Jong‐Soo Lee   +15 more
wiley   +1 more source

Millimeter-wave planar antenna array augmented with a low-cost 3D printed dielectric polarizer for sensing and internet of things (IoT) applications. [PDF]

Sci Rep, 2023
Al-Alem Y, Sifat SM, Antar YMM, Kishk AA.   +3 more
europepmc   +1 more source