Results 121 to 130 of about 465,453 (325)

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Design and numerical analysis of a gap-compensated low loss hollow-core antiresonant fiber with nested elliptical tubes

Scientific Reports
In this research, we propose a novel hollow-core anti-resonant fiber structure designed to enhance light confinement and reduce losses. Our simulation results indicate that the LP01 mode loss is reduced to 1.807 × 10⁻⁶ dB/km at a wavelength of 1.52 μm ...
Yuemei Li, Zhaoyang Zhang, Yao Guo, Haobo Guo, Zhiguo Zhang   +4 more
doaj   +1 more source

Femtosecond Laser-Fabricated Photonic Chips for Optical Communications: A Review. [PDF]

Micromachines (Basel), 2022
Cai C, Wang J.
europepmc   +1 more source

Hadamard Coded Modulation: An Alternative to OFDM for Optical Wireless Communications [PDF]

, 2014
Mohammad Noshad, Maïté Brandt-Pearce
openalex   +1 more source

Hydrogel‐Based Functional Materials: Classifications, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Conductive hydrogels have emerged as promising materials for smart wearable devices due to their outstanding flexibility, multifunctionality, and biocompatibility. This review systematically summarizes recent progress in their design strategies, focusing on monomer systems and conductive components, and highlights key multifunctional properties such as
Zeyu Zhang, Zao Cheng, Patrizio Raffa
wiley   +1 more source

Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band. [PDF]

Nanophotonics, 2022
Qi Z, Hu G, Deng C, Sun H, Sun Y, Li Y, Liu B, Bai Y, Chen S, Cui Y.   +9 more
europepmc   +1 more source

Advances in Safe, Flexible, and Stretchable Batteries for Wearable Applications

Advanced Materials Technologies, EarlyView.
Unlike previous reviews centered on component‐based deformability, this work highlights safety‐driven design strategies for flexible and stretchable batteries. By integrating material‐level engineering, geometry‐controlled structures, biocompatibility, and self‐protection mechanisms, it establishes a unified framework that connects mechanical ...
Hyewon Kang, Garan Byun, Seunghyeb Ban, Yunuo Huang, Woon‐Hong Yeo   +4 more
wiley   +1 more source

Orbital angular momentum and beyond in free-space optical communications. [PDF]

Nanophotonics, 2022
Wang J, Liu J, Li S, Zhao Y, Du J, Zhu L.   +5 more
europepmc   +1 more source

Laser communications through the atmosphere [PDF]

Atmospheric properties affecting laser propagation with reference to optical communications are reviewed. Some of the optical space network configurations and various diversity techniques that may need to be utilized to develop robust bi-directional ...
Churnside, J. H., Shaik, Kamran
core   +1 more source

Improved performance of hybrid optical communications system

, 2021
Hassan Hamed Naji
openalex   +2 more sources