Results 21 to 30 of about 9,978 (259)

Research progress in the effects of terahertz waves on biomacromolecules

Military Medical Research, 2021
With the rapid development of terahertz technologies, basic research and applications of terahertz waves in biomedicine have attracted increasing attention.
Liu Sun, Li Zhao, Rui-Yun Peng
doaj   +1 more source

TRANSMISSION OF TERAHERTZ RADIATION THROUGH ONE-DIMENSIONAL WIRE GRATINGS AT DIFFERENT ANGLES OF INCIDENCE [PDF]

Radio Physics and Radio Astronomy, 2020
Purpose: One-dimensional wire diffraction gratings, usually being mounted on ring frames, are often used in quasi-optical instruments under the construction of functional devices of different usage.
M. I. Dzyubenko, S. A. Masalov, Yu. E. Kamenev, I. V. Kolenov, V. P. Pelipenko, V. P. Radionov, N. F. Dahov   +6 more
doaj   +1 more source

High Resolution Lensless Terahertz Imaging and Ranging [PDF]

IEEE Access, 2019
In this paper, we propose a fast terahertz time-domain imaging method using a radar migration algorithm. We demonstrate high-resolution imaging in reflection without any collimating or focusing optics in the terahertz beam. In the proposed method, the sample is illuminated with a divergent terahertz beam, and the receiver collects both specular and ...
Dilyan Damyanov, Benedikt Friederich, Milad Yahyapour, Nico Vieweg, Anselm Deninger, Kevin Kolpatzeck, Xuan Liu, Andreas Czylwik, Thorsten Schultze, Ingolf Willms, Jan C. Balzer   +10 more
openaire   +4 more sources

Cryogenic Systems for Astronomical Research in the Special Astrophysical Observatory of the Russian Academy of Sciences

Photonics, 2023
This article presents the main results and new plans for the development of receivers which are cooled cryogenically to deep cryogenic temperatures and used in optical and radio astronomy research at the Special Astrophysical Observatory of the Russian ...
Yurii Balega, Oleg Bolshakov, Aleksandr Chernikov, Valerian Edelman, Aleksandr Eliseev, Eduard Emelyanov, Aleksandra Gunbina, Artem Krasilnikov, Ilya Lesnov, Mariya Mansfeld, Sergey Markelov, Mariya Markina, Guram Mitiani, Evgenii Pevzner, Nickolay Tyatushkin, Gennady Valyavin, Anton Vdovin, Vyacheslav Vdovin   +17 more
doaj   +1 more source

Liquid-metal-based metasurface for terahertz absorption material: Frequency-agile and wide-angle

APL Materials, 2017
Terahertz metasurface absorption materials, which absorb terahertz wave through subwavelength artificial structures, play a key role in terahertz wave shielding and stealth technology, etc.
Q. H. Song, W. M. Zhu, P. C. Wu, W. Zhang, Q. Y. S. Wu, J. H. Teng, Z. X. Shen, P. H. J. Chong, Q. X. Liang, Z. C. Yang, D. P. Tsai, T. Bourouina, Y. Leprince-Wang, A. Q. Liu   +13 more
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MILLIMETER AND TERAHERTZ WAVE SCATTERING DIAGRAMS IN RAINS [PDF]

Радиофизика и электроника, 2015
Detailed information about millimeter and terahertz wave scattering diagrams in rains is needed to develop millimeter and terahertz range radio engineering systems.
V. L. Kostina, Yu. I. Malyshenko, A. N. Roenko   +2 more
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Tutorial: Terahertz beamforming, from concepts to realizations

APL Photonics, 2018
The terahertz range possesses significant untapped potential for applications including high-volume wireless communications, noninvasive medical imaging, sensing, and safe security screening.
Daniel Headland, Yasuaki Monnai, Derek Abbott, Christophe Fumeaux, Withawat Withayachumnankul   +4 more
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Efficient organic terahertz generator with extremely broad terahertz molecular vibrational mode-free range

APL Materials, 2023
For nonlinear optical materials to be applicable as efficient broadband terahertz (THz) wave generators, low absorption with wide transparency in the THz frequency range is highly important. In this study, we report efficient organic THz wave generators,
Bong-Rim Shin, In Cheol Yu, Myeong-Hoon Shin, Mojca Jazbinsek, Fabian Rotermund, O-Pil Kwon   +5 more
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Suspended Tunnel Junction Bolometers For Terahertz Range [PDF]

The Open Applied Physics Journal, 2012
Implementation of high resolution passive THz cameras operated at cryogenic temperatures of a few Kelvin benefits from a large number of pixels. At present, building a cryogenic multiplexed read-out circuit represents a challenging task. Here we propose and demonstrate broadband niobium-based tunnel junction bolometers operating in equilibrium regime ...
Timofeev, Andrey V., Helistö, Panu, Grönberg, Leif, Luukanen, Arttu, Seppä, Heikki, Hassel, Juha   +6 more
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TERAHERTZ CLYNOOROTRON WITH AN AZIMUTHAL COMB [PDF]

Радиофизика и электроника, 2017
The results of theoretical and experimental studies of oro-trons – oscillators of diffraction radiation with spatially developed electrodynamic systems, electromagnetic oscillations in which are excited, as a rule, by nonrelativistic spatially developed ...
V. D. Yeryomka, A. A. Kurayev, V. V. Matveenko, A. K. Sinitsyn   +3 more
doaj   +1 more source