Results 151 to 160 of about 223,073 (288)

Equivalent Surface Impedance of Slot Impedance Load Based on the Aperture in a Parallel-Plate Waveguide Wall as Part of an Infinite Array

Известия высших учебных заведений России: Радиоэлектроника, 2016
The problem of infinite array of slot impedance loads excitation by plane wave is considered in order to determine the equivalent surface impedance. Each array element is an aperture in the wall of parallel-plate waveguide. A plane conductor is placed in
O. V. Alpatova, V. G. Koshkid’Ko
doaj  

Optofluidic Raman Analysis and Capacity Recovery in Li‐ion Cells

Advanced Materials Technologies, EarlyView.
Operando Raman spectroscopy is used to monitor the degradation of commercial Li‐ion cells. Using a microfluidic access port, small amounts of electrolyte are sampled into a hollow‐core optical fibre, where fibre‐enhanced Raman analysis reveals Li+ solvation changes and solvent evolution.
Ermanno Miele, Wesley M. Dose, Ian A. K. Davidson, Hesham Sakr, Natalie V. Wheeler, Francesco Poletti, Michael De Volder, Clare P. Grey, Jeremy J. Baumberg, Tijmen G. Euser   +9 more
wiley   +1 more source

Increasing efficiency of high numerical aperture metasurfaces using the grating averaging technique. [PDF]

Sci Rep, 2020
Arbabi A, Arbabi E, Mansouree M, Han S, Kamali SM, Horie Y, Faraon A.   +6 more
europepmc   +1 more source

Enhanced Self‐Phase Modulation in Silicon Nitride Waveguides Integrated With 2D MoS2 Films

Advanced Materials Technologies, EarlyView.
ABSTRACT On‐chip integration of 2D materials provides a promising route toward next‐generation integrated optical devices with performance beyond existing limits. Here, significantly enhanced spectral broadening induced by self‐phase modulation (SPM) is experimentally demonstrated in silicon nitride (Si3N4) waveguides integrated with 2D monolayer ...
Shahaz S. Hameed, Di Jin, Aihao Zhao, Jiayang Wu, Junkai Hu, Irfan H. Abidi, Sebastien Cueff, Christian Grillet, Yuning Zhang, Houssein El Dirani, Corrado Sciancalepore, Sebastien Kerdiles, Quentin Wilmart, Sumeet Walia, Christelle Monat, David J. Moss   +15 more
wiley   +1 more source

Tunable 3D‐Printed Static Mixers for Gradient Bioprinting With High Cell Viability

Advanced Materials Technologies, EarlyView.
ABSTRACT The fabrication of native tissue‐like structures with gradual transitions in material properties, cell types, and growth factors remains a major challenge in biofabrication due to the lack of suitable methods. Mimicking the hierarchical organization of living tissues is essential for functional models, yet creating gradient, multimaterial ...
Florian Hofmann, Jessica Faber, Franz Moser, Alessandro Cianciosi, Nicoletta Murenu, Joachim Schenk, Katrin G. Heinze, Natascha Schaefer, Silvia Budday, Tomasz Jungst   +9 more
wiley   +1 more source

High-Identical Numerical Aperture, Multifocal Microlens Array through Single-Step Multi-Sized Hole Patterning Photolithography. [PDF]

Micromachines (Basel), 2020
Lee JH, Chang S, Kim MS, Kim YJ, Kim HM, Song YM.   +5 more
europepmc   +1 more source

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

Advanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu, Bülend Ortaç, Ali Karatutlu, Taylan Gorkan, Engin Durgun, Dilek Soyler, Saniye Soylemez, Jelena Lillepäg, Volkan Filiz, Nergis Arsu, Sevil Savaskan Yilmaz   +10 more
wiley   +1 more source

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

Advanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee, Rafael R. Del Grande, Yeonjoo Lee, Jinkyoung Yoo, Azza Ben‐Akacha, Biwu Ma, Michael T. Pettes, David A. Strubbe   +7 more
wiley   +1 more source

Research on Low Numerical Aperture 808 nm Fiber-Coupled Semiconductor Laser. [PDF]

Micromachines (Basel)
Lin F, Wu Q, Luo W, Lin Y, Zheng Z, Yuan M, Zhang Q, Hu M, Xu D, Liu G, Qu Y.   +10 more
europepmc   +1 more source

Large-scale microlens arrays on flexible substrate with improved numerical aperture for curved integral imaging 3D display. [PDF]

Sci Rep, 2020
Wang W, Chen G, Weng Y, Weng X, Zhou X, Wu C, Guo T, Yan Q, Lin Z, Zhang Y.   +9 more
europepmc   +1 more source