Results 101 to 110 of about 63,217 (287)

A Colloidal Quantum Dot Thermistor and Bolometer

Advanced Materials, EarlyView.
This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar, Mariona Dalmases, Nima Taghipour, Rajesh Bera, Guy L. Whitworth, Goretti Torres Perez, Miguel Dosil, Gerasimos Konstantatos   +7 more
wiley   +1 more source

Actively switchable terahertz metamaterial

Results in Physics, 2019
We present four designs of actively switchable terahertz metamaterials (ASTMs) to explore their extraordinary optical characteristics. They are denoted as ASTM_1, ASTM_2, ASTM_3, and ASTM_4, respectively.
Fangyuan Lu, Huiliang Ou, Yuhang Liao, Fengdi Zhu, Yu-Sheng Lin   +4 more
doaj   +1 more source

Experimental Modeling of Cosmological Inflation with Metamaterials

, 2012
Recently we demonstrated that mapping of monochromatic extraordinary light distribution in a hyperbolic metamaterial along some spatial direction may model the flow of time and create an experimental toy model of the big bang.
Agranovich, Chernodub, Chernodub, Davydov, Ehren Hwang, Garay, Igor I. Smolyaninov, Jacob, Labini, Leonhardt, Linde, Naik, Pietronero, Smolyaninov, Smolyaninov, Smolyaninov, Smolyaninov, Smolyaninov, Smolyaninov, Wangberg, Yu-Ju Hung, Zayats   +21 more
core   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

A multi-materials 3D-printed continuous conductive fibre-based metamaterial for broadband microwave absorption

Virtual and Physical Prototyping
Electromagnetic pollution and military stealth technique have raised tremendous interest in high-performance microwave-absorbing structures. However, an ultra-broadband absorbing functional structure is still in urgent demand.
Tongtong Zhang, Dichen Li, Zhen Yang, Yubing Duan, Ningyu Zhang, Ling Wang, Qingxuan Liang   +6 more
doaj   +1 more source

Switchable metamaterial reflector/absorber for different polarized electromagnetic waves

, 2010
We demonstrate a controllable electromagnetic wave reflector/absorber for different polarizations with metamaterial involving electromagnetic resonant structures coupled with diodes. Through biasing at different voltages to turn ON and OFF the diodes, we
Feng, Yijun, Huang, Ci, Jiang, Tian, Zhao, Juming, Zhu, Bo   +4 more
core   +1 more source

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

Advanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang, Jiaqi Zhang, Mei Cui, Wei Qi, Renliang Huang, Rongxin Su, Kai Zhang   +6 more
wiley   +1 more source

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.
Jiang, L., Ou, J-Y., Plum, E., Zheludev, N.I.   +3 more
core  

4D‐Printed Spin Crossover Metamaterials with Giant Programmable Positive or Negative Thermal Expansion

Advanced Materials, EarlyView.
Spin crossover composite filaments are implemented for the rational design of 4D‐printed mechanical metamaterials. The obtained bi‐material structures guided by a theoretical analysis based on analytical calculations and Finite Element Analysis simulations exhibit giant programmable positive or negative deformation with coefficients of thermal ...
Adelais Trapali, Yuteng Zhang, Seyed Ehsan Alavi, Nagham Mawassy, Raja Zulkarnain, Gábor Molnár, Lionel Salmon, Azzedine Bousseksou   +7 more
wiley   +1 more source

Composite THz materials using aligned metallic and semiconductor microwires, experiments and interpretation

, 2010
We report fabrication method and THz characterization of composite films containing either aligned metallic (tin alloy) microwires or chalcogenide As2Se3 microwires.
Alexandre Dupuis, Anna Mazhorova, Aydin, Bayindir, Boltasseva, Boyle, Brosseau, Chen, Elser, Harris, Hiroaki Minamide, Hiromasa Ito, Hornyak, Hou, Huczko, Jian Feng Gu, Jin, Katsidis, Kondo, Li, Ma, Maksim Skorobogatiy, Marco Peccianti, Markoš, Maslovski, Ming Tang, Minowa, Miyamaru, Ozaki Tsuneyuki, Papasimakis, Pendry, Peng, Podolskiy, Rahachou, Roberto Morandotti, Scheller, Silveirinha, Smith, Takano, Takano, Tuniz, Tyagi, Withayachumnankul, Yahiaoui, Yuye Wang, Zhang   +45 more
core   +1 more source