Results 111 to 120 of about 33,091 (311)

Switching near-IR metamaterial response with electrically-controlled liquid crystals

, 2013
We experimentally demonstrate efficient electrical modulation and switching of the near-IR response of plasmonic metamaterials loaded with liquid crystals.
Fedotov, V.A., Ou, J-Y., Buchnev, O., Kaczmarek, M., Zheludev, N.I.   +4 more
core  

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

Advanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik, Fedor Kovalev, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Ilya Shadrivov, Mariusz Martyniuk   +6 more
wiley   +1 more source

Ultra-thin wide-band split-ring resonator-based compact mu-negative metamaterial for terahertz applications

Results in Engineering
This paper focuses on designing and investigating a new type of metamaterial called an ultra-thin wide-band mu-negative (MNG) metamaterial. The targeted frequency range is 0.1–10 THz.
Mohammad Jakir Hossain, Md Alim Uddin, Md Habibur Rahman, Md Kamruzzaman, Mohammad Rashed Iqbal Faruque, K.S. Al-mugren   +5 more
doaj   +1 more source

Magnonic Metamaterials

, 2012
A large proportion of the recent growth of the volume of electromagnetics research has been associated with the emergence of so called electromagnetic metamaterials1 and the discovered ability to design their unusual properties by tweaking the geometry and structure of the constituent “meta-atoms”.
V. V. Kruglyak, M. Dvornik, R. V. Mikhaylovskiy, O. Dmytriiev, G. Gubbiotti, S. Tacchi, M. Madami, G. Carlotti, MONTONCELLO, Federico, GIOVANNINI, Loris, ZIVIERI, Roberto, J. W. Klos, M. L. Sokolovskyy, S. Mamica, M. Krawczyk, M. Okuda, J. C. Eloi, S. Ward Jones, W. Schwarzacher, T. Schwarze, F. Brandl, D. Grundler, D. V. Berkov, E. Semenova, N. Gorn *.M.   +24 more
openaire   +3 more sources

Nano-electromechanical switchable photonic metamaterials

, 2011
We introduce mechanically reconfigurable electrostatically-driven photonic metamaterials (RPMs) as a generic platform for large-range tuning and switching of photonic metamaterial properties.
Ou, J-Y., Jiang, L., Plum, E., Zheludev, N.I.   +3 more
core  

Polarization angle independent perfect multiband metamaterial absorber and energy harvesting application

, 2016
A new kind of multi-band metamaterial absorber based on the concentric ring resonators is engineered to be used in various microwave applications including energy harvesting.
Gunduz, O. T., Sabah, C.
core   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Metamaterial Mediated Inverse Cherenkov Acceleration

, 2010
In this paper we ex­am­ine the ef­fect of in­tro­duc­ing an Elec­tro­mag­net­ic meta­ma­te­ri­al into a Trav­el­ling Wave struc­ture to me­di­ate in­verse Cherenkov ac­cel­er­a­tion.
Tan, Y.S., Seviour, Rebecca
core  

Biodegradable Wireless Soil Urea Sensor Using Metamaterial Perfect Absorber for Distributed Deployment in Precision Agriculture

Advanced Materials Technologies, EarlyView.
In this study, we propose a biodegradable wireless soil urea sensor for precision agriculture. The sensor's electromagnetic response varies depending on the urea concentration, allowing the measurement of relative soil urea concentrations by analyzing the time‐transient electromagnetic response.
Yu Tanaami, Ken Sakabe, Tetsuya Yarimizo, Yasutaka Murakami, Tetsuo Kan, Hiroaki Onoe   +5 more
wiley   +1 more source

Metamaterial-based graphene thermal emitter

, 2017
A thermal emitter composed of a frequency-selective surface metamaterial layer and a hexagonal boron nitride-encapsulated graphene filament is demonstrated.
I Luxmoore (21873875), C Shi (8831423), N Mahlmeister (21873872), GR Nash (21839186)   +3 more
core