Results 161 to 170 of about 38,067 (289)

Regulating the Dielectric Behavior of Conductive Polymers Through Vapor Phase Infiltration for Tunable Microwave Absorption

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Vapor phase infiltration (VPI) enables atomic‐level dielectric regulation in conductive polymer foams. The VPI‐treated foam exhibits enhanced absorption efficiency per unit thickness (~2.6 times), dynamic frequency tunability (94.5% coverage in 2–18 GHz), and on/off switching ability while retaining performance under acid/alkali exposure and repeated ...
Pengpeng Mou, Jinchuan Zhao, Xiao Liu, Lihong Wu, Xin Li, Gengping Wan, Guizhen Wang   +6 more
wiley   +1 more source

Integrated photonics enabling ultra-wideband fibre-wireless communication. [PDF]

Nature
Zhang Y, Shu H, Guo Y, Zhou P, Wang L, Cai J, Yao L, Yang L, Li L, Long T, Zhang Z, Han C, Lu K, Sun Y, Xu Z, Qin J, Tong Y, He Z, Xiao X, Wang L, Chen B, Yu S, Wang X.   +22 more
europepmc   +1 more source

Research progress on the use of the optical coherence tomography system for the diagnosis and treatment of central nervous system tumors

Ibrain, Volume 11, Issue 1, Page 3-18, Spring 2025.
With the advantages of high‐resolution imaging, efficient image acquisition, intraoperative real‐time detection, and radiation‐free and noninvasive characteristics, optical coherence tomography (OCT) provides accurate diagnosis and effective intraoperative guidance for the minimally invasive diagnosis and treatment of central nervous system (CNS ...
Jiuhong Li, Ziba Ayi, Gonggong Lu, Haibo Rao, Feilong Yang, Jing Li, Jiachen Sun, Junlin Lu, Xulin Hu, Si Zhang, Xuhui Hui   +10 more
wiley   +1 more source

Enhanced isolation unique fractal diminutive MIMO antenna with identical elliptical notch and cross stub for wireless uses. [PDF]

Sci Rep
Jat N, Kumar A, Ali EM, Gupta M, Elkamchouchi DH, Nanthaamornphong A.   +5 more
europepmc   +1 more source

Review of millimeter‐wave and terahertz near‐field synthetic aperture radar imaging technology

InfoScience, EarlyView.
Abstract This paper comprehensively reviews the development of millimeter‐wave (MMW) and terahertz (THz) near‐field imaging technologies, with an emphasis on the state of synthetic aperture radar (SAR)‐based imaging technologies. Near‐field imaging technologies are categorized into passive and active imaging modes, among which active imaging is favored
Qi Yang, Hongqiang Wang, Xu Chen, Xin Peng   +3 more
wiley   +1 more source

Grounded L-Shaped Corner-Embraced Patch Array Polarization Conversion Metasurface Compatible with Multiband and Broadband Characteristics. [PDF]

Micromachines (Basel)
Kong S, Zhang Y, Fu Z, Yang R.
europepmc   +1 more source

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Development of Wideband Circular Microstrip Patch Antenna for Use in Microwave Imaging for Brain Tumor Detection. [PDF]

Sensors (Basel)
Özmen H, Wu M, Dalarsson M.
europepmc   +1 more source

Recent advances in organic broad‐spectrum photodetection materials and devices

InfoMat, EarlyView.
Graphical Abstract This review systematically outlines the evolution of organic photodetectors from fullerene‐based to advanced non‐fullerene acceptors, highlighting how molecular engineering (e.g., D–A, quinoidal, and A‐D‐A′‐D‐A architectures) extends spectral response into the short‐wave infrared region.
Yilin Zhao, Shijia Tan, Deyang Ji, Wenping Hu   +3 more
wiley   +1 more source

Electromagnetic wave propagation in a rectangular metro tunnel using UWB and slot antennas. [PDF]

Sci Rep
Refaie Ali A, Eldabe NTM, Abo-Seida OM, Abd El Naby AEH, Ibrahim M.   +4 more
europepmc   +1 more source