Results 71 to 80 of about 110,697 (224)

Numerical Study of a Wide-Angle and Polarization-Insensitive Ultrabroadband Metamaterial Absorber in Visible and Near-Infrared Region

IEEE Photonics Journal, 2019
An ultrabroadband metamaterial absorber structure based on a periodic array of metallic-dielectric multilayered conical frustums is numerically investigated and proposed.
Nguyen Thi Quynh Hoa, Phan Huu Lam, Phan Duy Tung, Tran Sy Tuan, Hugo Nguyen   +4 more
doaj   +1 more source

Review of Plasmonic Nanocomposite Metamaterial Absorber [PDF]

Materials, 2014
Plasmonic metamaterials are artificial materials typically composed of noble metals in which the features of photonics and electronics are linked by coupling photons to conduction electrons of metal (known as surface plasmon). These rationally designed structures have spurred interest noticeably since they demonstrate some fascinating properties which ...
Mehdi Hedayati, Franz Faupel, Mady Elbahri   +2 more
openaire   +2 more sources

A reconfigurable hyperbolic metamaterial perfect absorber

Nanoscale Advances, 2021
A dynamically reconfigurable perfect absorber operating in the near-infrared region by incorporating chalcogenide glass into hyperbolic metamaterials.
Jitendra K. Behera, Kuan Liu, Meng Lian, Tun Cao   +3 more
openaire   +3 more sources

Effects of bending on a flexible metamaterial absorber [PDF]

, 2020
This paper presents a study of bending a metamaterial based absorber. The study of bending is important for textile material since it can be easily crumpled.
Abu Sahmah Mohd Supa'at, Murad, Noor Asniza, Farid Zubir, Siti Nurzulaihan Isa, Huda A. Majid, Noor Asniza Murad, Zubir, Farid, Isa, Siti Nurzulaiha, A. Majid, Huda, Osman Ayop, Majid, Huda A., Mohammad Kamal A. Rahim, Mohd Supa’at, Abu Sahmah, Ayop, Osman, Mohd. Supa’at, Abu Sahmah, A. Rahim, Mohammad Kamal   +15 more
core   +1 more source

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

Advanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane, Gyan Edbert Zesiro, Hao Zhou, Gursel Alici, Mu Chiao   +4 more
wiley   +1 more source

Microwall‐Integrated Terahertz Metasurfaces for Spatially Guided Label‐Free Sensing of Micrometer‐Scale Plastic Particles

Advanced Materials Technologies, EarlyView.
A THz metasurface device integrating a metal–dielectric–metal resonator with microwall‐defined recessed regions enables spatially guided, label‐free sensing of micrometer‐scale plastic particles. The as‐fabricated devices exhibit distinct THz reflection resonances for 3.1‐µm polystyrene particles and a concentration‐dependent resonance‐frequency‐shift ...
Naoki Inomata, Yuki Sakai, Yoshiaki Kanamori   +2 more
wiley   +1 more source

Coherent Absorption Reveals Colors Hidden in a Grey Fabry–Pérot Cavity

Advanced Optical Materials, EarlyView.
A dielectric thin film shows colors depending on its thickness; this effect can be used to encode information normally accessible through single‐beam spectroscopy. We developed a method to conceal this kind of information, based on coating the dielectric with a matched conductor, that suppresses the color‐bearing thin‐film resonances.
Giuseppe E. Lio, Giulio Carotta, Lorenzo Lavista, Andrea Camposeo, Giacomo Venturi, Agnese Guernieri, Alessandro Pitanti, Simon A. R. Horsley, Giuseppe C. La Rocca, Alessandro Tredicucci, Simone Zanotto   +10 more
wiley   +1 more source

Theoretical modeling and design of a graphene-based tunable metamaterial perfect absorber for broadband and narrowband terahertz applications

Next Materials
Metamaterial-based perfect absorbers operating in the terahertz range have been a topic of great interest to researchers because of their diverse applications.
Muhammad Hani Mazaheri, Husnul Maab, Arbab Abdur Rahim   +2 more
doaj   +1 more source

Electrochemistry‐Enabled Optical and Plasmonic Programmable Metasurfaces

Advanced Optical Materials, EarlyView.
Electrochemistry is emerging as a promising approach for engineering optical and plasmonic metasurfaces, from the fabrication of nanoscale structures to their dynamic control. This Perspective reviews electrochemical strategies for creating and tuning metasurfaces, examines current challenges and opportunities, and discusses how integration with ...
Charlène Brissaud, Leonardo Scarabelli
wiley   +1 more source

Theoretical design of a triple-band perfect metamaterial absorber in the THz frequency range

Results in Physics, 2019
A triple-band perfect metamaterial absorber based on periodically arranged graphene split ring resonator (SRR) is proposed in this study. The calculation results by the FDTD method indicate that the SRR structure has three absorption peaks at frequencies
Chunlian Cen, Zao Yi, Guangfu Zhang, Yubin Zhang, Cuiping Liang, Xifang Chen, Yongjian Tang, Xin Ye, Yougen Yi, Junqiao Wang, Jiangjin Hua   +10 more
doaj   +1 more source