Results 31 to 40 of about 148,104 (231)

Enhanced terahertz third-harmonic generation by bound states in the continuum in graphene grating-like metamaterial

Frontiers in Physics, 2023
Non-linear metamaterials hold great promise for enhanced terahertz harmonic generation. Here, we numerically investigate enhanced terahertz third-harmonic generation (THG) by exploiting the symmetry-protected bound states in the continuum (BICs) in ...
Baoku Wang, Jing Liu, Jinhui Cui, Jialin Liu, Fengjun Tian, Weimin Sun, Li Li, Li Li   +7 more
doaj   +1 more source

Terahertz Metamaterials for Linear Polarization Conversion and Anomalous Refraction [PDF]

Science, 2013
Converting Polarization The conversion of a light signal from one polarization direction to another plays an important role in communication and metrology. The components that are presently used for polarization conversion, however, tend to be relatively
N. Grady, J. Heyes, D. R. Chowdhury, Yong Zeng, M. Reiten, A. Azad, A. Taylor, D. Dalvit, Houtong Chen   +8 more
semanticscholar   +1 more source

Detection of Polystyrene Microplastic Particles in Water Using Surface-Functionalized Terahertz Microfluidic Metamaterials

Applied Sciences, 2022
We propose a novel method for detecting microplastic particles in water using terahertz metamaterials. Fluidic channels are employed to flow the water, containing polystyrene spheres, on the surface of the metamaterials.
Sae June Park, Yeong Hwan Ahn
doaj   +1 more source

Potential terahertz therapeutic strategy for the prevention or mitigation of Alzheimer’s disease pathology

Light: Science & Applications, 2023
With terahertz irradiation with a specific frequency, the fibrotic progression of β-amyloid oligomers is suppressed, which provides a potential therapeutic strategy for Alzheimer’s disease.
Xinke Wang, Yan Zhang
doaj   +1 more source

Vanadium Dioxide-Based Terahertz Metamaterial Devices Switchable between Transmission and Absorption

Micromachines, 2022
Terahertz metamaterial plays a significant role in the development of imaging, sensing, and communications. The function of conventional terahertz metamaterials was fixed after fabrication.
Haoqing Jiang, Yue Wang, Zijian Cui, Xiaoju Zhang, Yongqiang Zhu, Kuang Zhang   +5 more
doaj   +1 more source

Accurate Local Modulation of Graphene Terahertz Metamaterials by Direct Electron Beam Irradiation

Photonics, 2022
Electrical gating has been typically used for Graphene-based devices to deliver high performance with superior electrical controllability. In this study, we utilize direct electron beam irradiation to attain the electrical controllability of graphene ...
Zhuocheng Zhang, Xiaoqiuyan Zhang, Min Hu, Tianyu Zhang, Xingxing Xu, Tao Zhao, Yanyu Wei, Yubin Gong, Shenggang Liu   +8 more
doaj   +1 more source

Inverse Design of Terahertz Optical Power Splitters Using the Particle Swarm Optimization Method [PDF]

Journal of Electromagnetic Engineering and Science, 2023
This letter proposes 50:50 TE terahertz power splitters based on digitized metamaterials. The components are optimized using the particle swarm optimization algorithm.
Kiyanoush Goudarzi, Han-eol Lee, Doyoung Kim, Ikmo Park, Haewook Han   +4 more
doaj   +1 more source

Novel Terahertz Metamaterials

, 2013
Antoinette J. Taylor
openaire   +4 more sources

Patterned Graphene-Based Metamaterials for Terahertz Wave Absorption

Coatings, 2022
Graphene-based metamaterials have been widely applied in optoelectronic devices, optical modulators, and chemical sensors due to the outstanding tunability and optical response in the terahertz (THz) region. Here, tunable THz metamaterial absorbers based
Siyuan Zhou, Kaixi Bi, Qiannan Li, L. Mei, Yaokai Niu, Wenxiao Fu, Shuqi Han, Shuai Zhang, Jiliang Mu, Ligang Tan, Wenping Geng, Xiu-jian Chou   +11 more
semanticscholar   +1 more source

Terahertz metamaterial devices [PDF]

SPIE Proceedings, 2007
Compared to the neighboring infrared and microwave regions, the terahertz regime is still in need of fundamental technological advances. This derives, in part, from a paucity of naturally occurring materials with useful electronic or photonic properties at terahertz frequencies. This results in formidable challenges for creating the components needed
Seth R. Bank, Willie J. Padilla, Mark Lee, Antoinette J. Taylor, Joshua M. O. Zide, Hou-Tong Chen, Clark Highstrete, John F. O'Hara, Arthur C. Gossard, Richard D. Averitt   +9 more
openaire   +2 more sources