Results 31 to 40 of about 56,977 (335)

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
doaj   +1 more source

Terahertz electrical writing speed in an antiferromagnetic memory [PDF]

, 2018
The speed of writing of state-of-the-art ferromagnetic memories is physically limited by an intrinsic gigahertz threshold. Recently, realization of memory devices based on antiferromagnets, in which spin directions periodically alternate from one atomic ...
Baumgartner, Manuel, Campion, Richard P., Gambardella, Pietro, Kampfrath, Tobias, Kašpar, Zdeněk, Novák, Vít, Němec, Petr [u.v.m.], Olejník, Kamil, Seifert, Tom, Wadley, Peter   +9 more
core   +1 more source

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
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

MATCHING STRUCTURES WITH FORM BIREFRINGENCE WITH FREE SPACE IN THZ RANGE [PDF]

Радиофизика и электроника, 2015
When constructing polarization radio measuring paths operating in the THz frequency range (0.1…10 THz) the differential phase sections (DPS) are widely used. The use of terahertz waves (THz) allows research in radio astronomy, radio spectroscopy, biology,
V. I. Bezborodov, O. S. Kosiak, Ye. M. Kuleshov, V. V. Yachin   +3 more
doaj   +1 more source

PROSPECTS OF THE USE OF GRADIENT GRATES IN THE LASERS OF TERAHERTZ RANGE [PDF]

Radio Physics and Radio Astronomy, 2018
Purpose: The improvement and development of terahertz radiation sources is required for the further development of the terahertz frequency range. Submillimeter lasers are one of the few sources of terahertz radiation.
M. I. Dzyubenko, V. A. Maslov, E. N. Odarenko, V. P. Radionov   +3 more
doaj   +1 more source

Sub-terahertz and terahertz generation in long-wavelength quantum cascade lasers

Nanophotonics, 2019
Terahertz quantum cascade laser sources with intra-cavity non-linear frequency mixing are the first room-temperature electrically pumped monolithic semiconductor sources that operate in the 1.2–5.9 THz spectral range.
Fujita Kazuue, Hayashi Shohei, Ito Akio, Hitaka Masahiro, Dougakiuchi Tatsuo   +4 more
doaj   +1 more source

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

TERAHERTZ OSCILLATIONS IN InN GUNN DIODES WITH AN ACTIVE REGION LENGTH OF 1 μm AND WITH A GRADED GaInN LAYER [PDF]

Radio Physics and Radio Astronomy, 2022
Subject and Purpose. The InN Gunn diode is known as the device capable of generating powerful oscillations atfrequencies above 300 GHz. A possible way for increasing both the microwave power and the cutoff frequency of the Gunn diode is to employ graded ...
I. P. Storozhenko, S. I. Sanin
doaj   +1 more source

Characterization of deep impurities in semiconductors by terahertz tunneling ionization [PDF]

, 2000
Tunneling ionization in high frequency fields as well as in static fields is suggested as a method for the characterization of deep impurities in semiconductors.
Abakumov V. N., E. Ziemann, Ganichev S. D., Ganichev S. D., I. N. Yassievich, Karpus V., Karpus V., Merkulov I. A., Pakhomov A. A., S. D. Ganichev, V. I. Perel, W. Prettl   +11 more
core   +2 more sources