Results 111 to 120 of about 40,370 (319)

Design, Simulation, and Fabrication of High‐Performance Metamaterial Absorber for EMI Mitigation and THz NDT/Imaging Applications: A Shape‐Preserved GHz‐to‐THz Transition Approach

Advanced Theory and Simulations, EarlyView.
A novel metamaterial absorber is designed, simulated, and validated for both 5G mmWave and THz applications, achieving >95.8% and 90% absorption, respectively. Its polarization‐insensitive, scalable design enables applications in THz NDT, imaging, and EMI shielding.
Ahmet Teber
wiley   +1 more source

All‐In‐One Flexible MXene/PET Films via Scalable Scanning Centrifugal Casting for High Transparency and Ultra‐Wide Multispectral Electromagnetic Responses

Advanced Science, EarlyView.
In this study, a novel all‐in‐one MXene/PET film with a highly aligned and compact structure is fabricated via a scanning centrifugal casting method. The resulting film exhibits high optical transparency, low sheet resistance, excellent infrared stealth, and ultra‐broadband electromagnetic shielding across GHz to THz frequencies, highlighting its great
Tian‐Yu Zhang, Qiang‐Qiang Zhao, Bo Sun, Ibrar Ahmed, Ruijia Liu, Chi Liu, Han Wang, Songfeng Pei, Chang Liu, You Zeng   +9 more
wiley   +1 more source

Trends in the applications of terahertz radiation in oral oncology treatments

Oral Oncology Reports
In Terahertz radiation, known as THz-rays, falls within a special range of frequencies in the electromagnetic spectrum, from 0.1 to 10 THz. This radiation has unique benefits for medical imaging, security screening, and non-destructive testing.
Marwan Al-Raeei
doaj  

Proposal for an electrically controlled terahertz micro-oscillator

AIP Advances
A source that generates sustained terahertz electromagnetic radiation (oscillator) controllable by an applied voltage is proposed. The structure consists of a nanocomposite slab containing metal nanorods enclosed between two graphene sheets, which are ...
V. G. Bordo
doaj   +1 more source

Mn3SnN‐Based Antiferromagnetic Tunnel Junction with Giant Tunneling Magnetoresistance and Multi‐States: Design and Theoretical Validation

Advanced Science, EarlyView.
A non‐collinear Mn3SnN/SrTiO3/Mn3SnN (001) AFMTJ is proposed with a theoretical TMR exceeding 1500%, enabled by optimal momentum (k)‐space matching between Mn3SnN's spin‐polarized Fermi surface (pk||${p}_{{\bm{k}}_{\mathbf{|}\mathbf{|}}}$) and the low‐decay‐rate (κk||${\kappa}_{{\bm{k}}_{\mathbf{|}\mathbf{|}}}$) of the SrTiO3 barrier.
Shiqi Liu, Tingwei Chen, Baochun Wu, Haodong Fan, Yingmei Zhu, Sheng Bi, Yuntian Liu, Yinuo Shi, Wenbiao Zhang, Mengxi Wang, Qiang Li, Jie Yang, Jing Lu, Tiejun Zhou, Bo Liu   +14 more
wiley   +1 more source

Plasmonic antennas based on rectangular graphene nanoribbons with controlled polarization of terahertz and infrared radiation

Физика волновых процессов и радиотехнические системы
Background. To develop new terahertz wireless communication systems with high throughput and transmission speeds, such as 6G and above, effective control of the polarization direction of emitted terahertz waves is necessary, but most methods are ...
Galina S. Makeeva
doaj   +1 more source

Hot electron dynamics study by terahertz radiation from large aperture GaAs p-i-n diodes [PDF]

, 1993
Long Xu, Bang Hu, Wei Xin, D. H. Auston, Jeffrey Morse   +4 more
openalex   +1 more source

A Self‐Adaptive Reconfigurable Metasurface for Electromagnetic Wave Sensing and Dynamic Reflection Control

Advanced Science, EarlyView.
Reconfigurable metasurfaces typically require human intervention or complex, resource‐heavy processes. This innovative self‐adaptive metasurface senses an incident wave's direction, adjusting reflection in real‐time using a simple electronics module. It eliminates external controllers, reducing response time, energy consumption, and costs. Applications
Bo‐Wen Ren, Chu Qi, Peixing Li, Xiaoluo He, Alex M. H. Wong   +4 more
wiley   +1 more source

Terahertz Cherenkov radiation induced by a self-modulated electron beam in plasma wakefield

AIP Advances, 2019
In this paper, a novel scheme of generating terahertz radiation is proposed, which considers a relativistic electron beam being modulated by its self-excited plasma wakefield in a plasma-filled slow-wave structure (SWS).
Shengpeng Yang, Qing Zhou, Changjian Tang, Shaoyong Chen, Yuxi Xia   +4 more
doaj   +1 more source

Plasmonic Terahertz Amplification in Graphene-Based Asymmetric Hyperbolic Metamaterial

Photonics, 2015
We propose and theoretically explore terahertz amplification, based on stimulated generation of plasmons in graphene asymmetric hyperbolic metamaterials (AHMM), strongly coupled to terahertz radiation.
Igor Nefedov, Leonid Melnikov
doaj   +1 more source