Results 121 to 130 of about 80,934 (296)

An efficient broadband metasurface design for smart health care and future communication applications

Results in Optics
We propose a broadband metasurface consisting of a novel compact resonator to achieve linear polarization conversion in reflection mode. This compact resonator is designed on Roger 5880 substrate, measuring 1.575 mm in thickness, and possessing a loss ...
Abdulkadir Cildir, Farooq A. Tahir, Abdul Jabbar, Adnan Zahid, Masood ur Rehman, Hasan Abbas, Qammer H. Abbasi   +6 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Single and Dual Helical Polarizers for Millimeter-Wave Horn Antennas

IEEE Open Journal of Antennas and Propagation
This paper presents a helical-based polarizer integrated into the aperture of a pyramidal horn antenna, designed to convert linearly polarized radiated fields into either right- or left-handed circular polarization over two distinct bands. The integrated
Maya Al Ajam, Youssef Tawk, Joseph Costantine   +2 more
doaj   +1 more source

Polarization-controlled tunable directional coupling of surface plasmon polaritons

, 2013
Light can be coupled into propagating electromagnetic surface waves at a metal-dielectric interface known as surface plasmon polaritons (SPPs). This process has traditionally faced challenges in the polarization sensitivity of the coupling efficiency and
Jiao Lin (18026746), Qian Wang (32718), J Balthasar Mueller (20043009), Xiaocong Yuan (1722487), Nicholas Antonious (20042787), Federico Capasso (1394371)   +5 more
core  

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Tunable Polarization Conversion and Rotation based on a Reconfigurable Metasurface

, 2017
Polarization is an important property of electromagnetic (EM) wave and different polarization manipulations are required for varied optical applications.
M. Zhang, Zhang, Wu, A. Q. Liu, Liu, Ai Qun, W. Zhang, C. F. Lan, F. C. Li, Zhang, M., Li, F. C., Lan, C. F.   +9 more
core   +1 more source

Biomimetic Nanovaccine Integrating Dendritic Cell Exosomes with Tumor Cell Membranes for Sustained Prophylaxis Against Glioblastoma

Advanced Functional Materials, EarlyView.
We have developed DEX/GM, an all‐natural, personalizable hybrid vaccine designed by coating dendritic cell‐derived exosomes (DEX) onto tumor cell membranes (GM) for sustained prophylaxis against glioblastoma (GBM). ABSTRACT Glioblastoma (GBM), one of the most aggressive and lethal brain tumors, remains incurable with a poor clinical prognosis.
Shanshan Li, Dongya Zhang, Shiyu Wang, Changhe Pang, Meng Zheng, Bingyang Shi, Yan Zou   +6 more
wiley   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

Advanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin, Arthur L. Shilov, Subhajit Jana, Ilya Mazurenko, Pierre A. Pantaleon, Mikhail Kashchenko, Nikita Krivovichev, Viacheslav Dremov, Igor Gayduchenko, Takashi Taniguchi, Kenji Watanabe, Yibo Wang, Kostya S. Novoselov, Dmitry A. Svintsov, Grigory Goltsman, Elena I. Titova, Denis A. Bandurin   +16 more
wiley   +1 more source

Nonlinear properties of optical microfibres

, 2013
Glass microfibre waveguides offer an intriguing platform for the investigation of nonlinear effects, due to their high effective nonlinearity which arises from the tight modal confinement down to dimensions comparable to the wavelength of guided light ...
Lee, Timothy
core  

Polarization conversion by dielectric subwavelength gratings in conical mounting

, 2008
Subwavelength dielectric gratings are examined in total-internal-reflection configuration. It is demonstrated experimentally that such elements, fabricated in TiO2, can perform full polarization conversion from incident TE to TM with nearly 100 ...
Pasi Laakkonen, Laakkonen, P., Petri Karvinen, Passilly, N., Kalle Ventola, Turunen, J., Tervo, J., Karvinen, P., Nicolas Passilly, Jari Turunen, Ventola, K., Jani Tervo   +11 more
core   +1 more source