Results 41 to 50 of about 76,246 (267)

Nanostructure-enhanced infrared spectroscopy

Nanophotonics, 2021
While infrared spectroscopy is a powerful technique that provides molecular information such as chemical constituents and chemical structures of analytes, it suffers from low absorption cross-section resulting in low sensitivity and poor signal-to-noise ...
Tanaka Takuo, Yano Taka-aki, Kato Ryo
doaj   +1 more source

Optical metamaterials with different metals

, 2012
We investigate the influence of different metals on the electromagnetic response of fishnet metamaterials in the optical regime.We found, instead of using a Drude model, metals with a dielectric function from experimentally measured data should be ...
Kafesaki, Maria, Koschny, Thomas, Shen, Nian-Hai, Soukoulis, Costas M.   +3 more
core   +1 more source

Electro-mechanical light modulator based on controlling the interaction of light with a metasurface

Scientific Reports, 2017
We demonstrate a reflective light modulator, a dynamic Salisbury screen where modulation of light is achieved by moving a thin metamaterial absorber to control its interaction with the standing wave formed by the incident wave and its reflection on a ...
Pablo Cencillo-Abad, Jun-Yu Ou, Eric Plum, Nikolay I. Zheludev   +3 more
doaj   +1 more source

Field Enhancement for the Composite MXene/Black Phosphorus-Based Metasurface

Nanomaterials, 2022
Both MXene and black phosphorus (BP), which actg as hot two-dimensional (2D) materials, have unique optical properties and important applications for nano-micro optical devices.
Yihui Zhou, Lingqiao Li, Zhihui He, Yixuan Wang, Wei Cui, Zhimin Yang, Shaojun Lu, Xiongxiong Wu, Lang Bai   +8 more
doaj   +1 more source

Long-metallic-strip array with parasitic rings: an efficient metasurface for dual-broadband electromagnetic window at large angles

Nanophotonics
The long-metallic-strip (LMS) array proposed by J. B. Pendry has been widely studied in electromagnetic windows. However, it could only work for the single-band window, not the dual-band one, due to the plasma-like oscillation attenuating with increasing
Li Tiefu, Chen Jinwei, Jia Yuxiang, Fu Xinmin, Han Yajuan, Yang Jie, Liu Zhaotang, Ding Chang, Feng Cunqian, Wang Jiafu   +9 more
doaj   +1 more source

THz Metamaterial Characterization Using THz-TDS [PDF]

, 2000
The purpose of this chapter is to familiarize the reader with metamaterials and describe terahertz (THz) spectroscopy within metamaterials research. The introduction provides key background information on metamaterials, describes their history and their ...
Kodama, Christopher H., Coutu, Ronald A., Jr.   +1 more
core   +1 more source

Enhanced parametric processes in binary metamaterials

, 2005
We suggest double-resonant (binary) metamaterials composed of two types of magnetic resonant elements, and demonstrate that in the nonlinear regime such metamaterials provide unique possibilities for phase-matched parametric interaction and enhanced ...
Ilya V. Shadrivov, Maxim V. Gorkunov, Shadrivov I. V., Veselago V. G., Yuri S. Kivshar   +4 more
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

A New Type Microwave Absorption Materials: Metal–Organic‐Frameworks (MOFs) Used as Non‐Conductive Material Combination with P‐C‐800

Advanced Electronic Materials
Metal–Organic‐Frameworks (MOFs) are commonly used as microwave‐absorbing materials after pyrolysis treatment. Rare researchers treat MOFs as non‐conductive materials and use them as absorbing materials directly.
Guodong Han, Song Zhao, Sai Sui, Bo Feng, Yudeng Wang, Junxiang Zhou, Zhuolun Li, Xiaoxia Tian, Yuxiang Jia, Jiafu Wang, Shaobo Qu   +10 more
doaj   +1 more source

Separable metamaterials: analytical ab-initio homogenization and chirality

, 2016
We investigate the ab-initio homogenization of separable metamaterials with factorized dielectric permittivity profile which can be achieved through suitable grey-scale permittivity design techniques.
Ciattoni, Alessandro, Rago, Domenico, Rizza, Carlo   +2 more
core   +1 more source