Results 91 to 100 of about 10,716 (266)

Morphology‐Controlled Silica Nanoparticle Coatings for Transparent Radiative Cooling

Advanced Materials Interfaces, EarlyView.
Transparent radiative cooling coatings are achieved by immobilizing solid and hollow silica spheres on glass. Particle morphology within sub‐monolayer coatings is shown to govern the trade‐off between visible and atmospheric window reflectance. Hollow‐sphere structures enable reduced thermal emission losses while preserving transparency, highlighting ...
Jefferson A. S. Lam, Kishin Matsumori, Maximillian Theis, Alexander Berger, Nicole Böller, Qimeng Song, Matthieu Gresil, Jacek J. Jasieniak, Markus Retsch   +8 more
wiley   +1 more source

Terahertz metamaterials on free-standing highly-flexible polyimide substrates

, 2008
We have fabricated resonant terahertz metamaterials on free standing polyimide substrates. The low-loss polyimide substrates can be as thin as 5.5 micron yielding robust large-area metamaterials which are easily wrapped into cylinders with a radius of a ...
A C Strikwerda, C M Bingham, Hu Tao, K Fan, R D Averitt, W J Padilla, Williams G P, Xin Zhang, Zhang X-C   +8 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Full light absorption in single arrays of spherical nanoparticles

, 2015
In this paper we show that arrays of core-shell nanoparticles function as effective thin absorbers of light. In contrast to known metamaterial absorbers, the introduced absorbers are formed by single planar arrays of spherical inclusions and enable full ...
Asadchy, V. S., Kosulnikov, S. U., Morits, D., Omelyanovich, M. M., Osipov, A. V., Ra'di, Y., Simovski, C. R., Tretyakov, S. A.   +7 more
core   +1 more source

Broadband radiation-absorbing metamaterial

CLEO:2011 - Laser Applications to Photonic Applications, 2011
Using the broadband “super-singularity” in the density of states of (meta) materials with hyperbolic dispersion, we demonstrate, both theoretically and experimentally, a new concept of radiation-absorbing systems.
Narimanov, Evgenii E., Li, H., Barnakov, Yu, Timkur, T. U., Noginov, M. A.   +4 more
openaire   +3 more sources

3D Printed PEDOT:PSS‐Based Lattice Pressure Sensors With Tunable Electromechanical Response

Advanced Materials Technologies, EarlyView.
poly(3,4‐ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS)‐based architected lattices are fabricated via single‐step Digital Light Processing (DLP) printing for tunable pressure sensing. Structural design variations allow precise control of sensitivity and range, while integrated conductivity eliminates post‐processing.
Ozan Karakaya, Naroa Lopez‐Larrea, Ali Veysel Tunc, Mikel Rincon‐Iglesias, Karin J. Chen, Katja Nau, Senentxu Lanceros‐Mendez, David Mecerreyes, Miryam Criado‐Gonzalez, Gerardo Hernandez‐Sosa   +9 more
wiley   +1 more source

On The Study of Development of X Band Metamaterial Radar Absorber

Advanced Electromagnetics, 2012
A new development of metamaterial applications in radar absorbers for X band is introduced. Two modifications were suggested based on two different approaches which are a new called fan shaped resonator absorber and a modified high impedance metamaterial
M. A. Abdalla, Z. Hu
doaj   +1 more source

Phase Conjugation and Negative Refraction Using Nonlinear Active Metamaterials

, 2010
We present experimental demonstration of phase conjugation using nonlinear metamaterial elements. Active split-ring resonators loaded with varactor diodes are demonstrated theoretically to act as phase-conjugating or time-reversing discrete elements when
Alexander R. Katko, Bogdan-Ioan Popa, Gennady Shvets, John P. Barrett, L. D. Landau, Shi Gu, Steven A. Cummer   +6 more
core   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, EarlyView.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source

Broadband reflectionless metasheets: Frequency-selective transmission and perfect absorption

, 2015
Energy of propagating electromagnetic waves can be fully absorbed in a thin lossy layer, but only in a narrow frequency band, as follows from the causality principle.
Asadchy, V. S., Faniayeu, I. A., Khakhomov, S. A., Ra'di, Y., Semchenko, I. V., Tretyakov, S. A.   +5 more
core   +2 more sources