Results 81 to 90 of about 137,045 (307)

Tunable plasmonic filter and variable optical attenuator based on ring metal–insulator–metal waveguide

open access: yesThe Journal of Engineering, 2013
A tunable nanoscale plasmonic filter and variable optical attenuator structure based on a rectangular ring metal–insulator–metal waveguide cavity containing electro-optic (EO) material is proposed and numerically demonstrated by using the finite ...
Jianping Guo, Jiahu Zhu, Wen Zhou
doaj   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

open access: yesAdvanced Functional Materials, EarlyView.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu   +3 more
wiley   +1 more source

Electrically-Tunable Ceramic-Waveguide Filter

open access: yesElectromagnetic Science
Ceramic waveguide filters have been popular in 5G wireless system applications. This article proposes an effective solution to enable the ceramic waveguide filter to be electrically tunable.
Di Lu, Baoqi Zhu, Ming Yu
doaj   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen   +4 more
wiley   +1 more source

Fast widely tunable chiral nematic liquid crystal filter [PDF]

open access: yes, 2014
Chiral nematic liquid crystals (CLCs) can spontaneously arrange into helical structures with periodicities of a few hundred nanometers with a certain pitch (P) and corresponding periodic refractive index profile.
Beeckman, Jeroen   +2 more
core  

MMTF: The Maryland-Magellan Tunable Filter

open access: yes, 2009
This paper describes the Maryland-Magellan Tunable Filter (MMTF) on the Magellan-Baade 6.5-meter telescope. MMTF is based on a 150-mm clear aperture Fabry-Perot (FP) etalon that operates in low orders and provides transmission bandpass and central ...
A. Dressler   +19 more
core   +1 more source

Graphene nanoring as a tunable source of polarized electrons [PDF]

open access: yes, 2012
We propose a novel spin filter based on a graphene nanoring fabricated above a ferromagnetic strip. The exchange interaction between the magnetic moments of the ions in the ferromagnet and the electron spin splits the electronic states, and gives rise to
A V Malyshev   +5 more
core   +3 more sources

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu   +3 more
wiley   +1 more source

Thermal Control of the Magnon-Photon Coupling in a Notch Filter coupled to a Yttrium-Iron-Garnet/Platinum System [PDF]

open access: yes, 2017
We report thermal control of mode hybridization between the ferromagnetic resonance (FMR) and a planar resonator (notch filter) working at 4.74 GHz. The chosen magnetic material is a ferrimagnetic insulator (Yttrium Iron Garnet: YIG) covered by 6 nm of ...
Bauer, Gerrit E. W.   +6 more
core   +4 more sources

Varactor-Based Continuously Tunable Microstrip Bandpass Filters: A Review, Issues and Future Trends

open access: yesIEEE Access
Electronically tuned bandpass filters are crucial frequency-selective devices in tunable RF front-ends and are extensively utilized in the fields of communications and sensing.
Mengjie Qin   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy