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Terahertz Reconfigurable Planar Graphene Hybrid Yagi–Uda Antenna [PDF]

open access: yesNanomaterials
In this paper, we design a frequency reconfigurable antenna for terahertz communication. The antenna is based on a Yagi design, with the main radiating elements being a pair of dipole antennas printed on the top and bottom of a dielectric substrate ...
Qimeng Liu   +9 more
doaj   +2 more sources

3D-printed aberration-free terahertz metalens for ultra-broadband achromatic super-resolution wide-angle imaging with high numerical aperture [PDF]

open access: yesNature Communications
Terahertz (THz) lens constitutes a vital component in the THz system. Metasurfaces-based THz metalenses and classical bulky lenses are severely constrained by chromatic/ spherical aberration and the diffraction limit.
Jin Chen   +4 more
doaj   +2 more sources

High-throughput terahertz imaging: progress and challenges

open access: yesLight: Science & Applications, 2023
Many exciting terahertz imaging applications, such as non-destructive evaluation, biomedical diagnosis, and security screening, have been historically limited in practical usage due to the raster-scanning requirement of imaging systems, which impose very
Xurong Li   +4 more
semanticscholar   +1 more source

Estimation of High-Frequency Vibration Parameters for Terahertz SAR Imaging Based on FrFT With Combination of QML and RANSAC

open access: yesIEEE Access, 2021
High-frequency vibration of motion platform leads to paired echo for synthetic aperture radar (SAR) imaging, especially in terahertz band due to its shorter wave length.
Yinwei Li   +5 more
doaj   +1 more source

The 2023 terahertz science and technology roadmap

open access: yes, 2023
Terahertz (THz) radiation encompasses a wide spectral range within the electromagnetic spectrum that extends from microwaves to the far infrared (100 GHz–∼30 THz).
A. Leitenstorfer   +53 more
semanticscholar   +1 more source

Terahertz Communications: Challenges in the Next Decade

open access: yesIEEE Transactions on Terahertz Science and Technology, 2022
Thanks to the abrupt advances in semiconductor technologies, particularly in terms of the operating frequency, the last decade has seen various efforts and trials in attempts to achieve high-throughput wireless communications at terahertz (THz ...
Ho-Jin Song, N. Lee
semanticscholar   +1 more source

Terahertz absorption characteristics of ammonium salt solution based on self-sampling microfluidic chip

open access: yesScientific Reports, 2022
With the continuous development of terahertz (THz) detection technology, the use of terahertz spectroscopy to study chemical samples has become one of the indispensable tools in the field of biochemistry.
Qinghao Meng   +6 more
doaj   +1 more source

Complete Terahertz Polarization Control with Broadened Bandwidth via Dielectric Metasurfaces

open access: yesNanoscale Research Letters, 2021
We demonstrate terahertz dielectric metasurfaces with anisotropic multipoles within the framework of the generalized Huygens principle, in which the interference among these multipoles achieves giant phase shift with broadened bandwidth and high ...
Dacheng Wang   +3 more
doaj   +1 more source

Terahertz spectra of electrolyte solutions under applied electric and magnetic fields

open access: yesJournal of the European Optical Society-Rapid Publications, 2022
Most biomolecules require an aqueous environment to fully exert their biological activity. However, the rotation mode, vibration mode, and energy associated with the hydrogen bonding network of water are in the terahertz band, resulting in strong ...
Shen Yan   +6 more
doaj   +1 more source

Experimental investigation of optically controlled topological transition in bismuth-mica structure

open access: yesScientific Reports, 2021
The hyperbolic materials are strongly anisotropic media with a permittivity/permeability tensor having diagonal components of different sign. They combine the properties of dielectric and metal-like media and are described with hyperbolic isofrequency ...
Anton Zaitsev   +11 more
doaj   +1 more source

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