Results 31 to 40 of about 40,370 (319)

The impact of terahertz radiation on an extremophilic archaean Halorubrum saccharovorum proteome

open access: yesВавиловский журнал генетики и селекции, 2017
Nonthermal effects of terahertz radiation on living objects are currently intensely studied, as more sources of this radiation type and devices employing it are being constructed.
T. N. Goryachkovskaya   +10 more
doaj   +1 more source

Uncooled detectors of continuum terahertz radiation [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2011
THz continuum spectral photometry has new and unique applications in different civil and military areas presenting a number of distinctive advantages on the well known microwaves or mid- to near-infrared technologies. THz sensing is essential to investigate the emission mechanisms by high energy particle acceleration processes.
V. A. Nikolaev   +14 more
openaire   +5 more sources

Optical Transistor for an Amplification of Radiation in a Broadband THz Domain [PDF]

open access: yes, 2020
We propose a new type of optical transistor for a broadband amplification of THz radiation. It is made of a graphene--superconductor hybrid, where electrons and Cooper pairs couple by Coulomb forces. The transistor operates via the propagation of surface
Kusmartsev, Fedor V.   +3 more
core   +3 more sources

Emission of terahertz radiation from SiC [PDF]

open access: yesApplied Physics Letters, 2009
We report the emission of strong coherent broadband terahertz radiation from 6H-silicon-carbide (SiC) excited with optical pulses. The measured terahertz spectral signal-to-noise ratio is better than one thousand. We determine that the terahertz radiation is generated via second order optical nonlinearity (optical rectification).
Michael G. Spencer   +6 more
openaire   +3 more sources

Terahertz radiation in ophthalmology (review)

open access: yesActa Biomedica Scientifica, 2021
Terahertz (THz) radiation is one of the new, intensively studied interdisciplinary fi elds of scientifi c knowledge, including medicine, in the fi rst decades of the 21st century. At the beginning of this article (review), in a brief form, the basic statements on THz radiation, the main parameters and properties are presented; the modern THz ...
A. G. Zabolotniy   +2 more
openaire   +3 more sources

Collimated terahertz radiation through a laser irradiating on a T-type target

open access: yesFrontiers in Physics, 2022
A scheme, applying a linearly polarized laser irradiating on a T-type target which contains a longitudinal target followed by a transverse target, is proposed to collimate the terahertz radiation.
Chong Lv   +4 more
doaj   +1 more source

Magnetic field effect on tunnel ionization of deep impurities by terahertz radiation [PDF]

open access: yes, 2003
A suppression of tunnelling ionization of deep impurities in terahertz frequency electric fields by a magnetic field is observed. It is shown that the ionization probability at external magnetic field, B, oriented perpendicular to the electric field of ...
A.S. Moskalenko   +15 more
core   +3 more sources

Optical properties of tissue measured using terahertz pulsed imaging. [PDF]

open access: yes, 2003
The first demonstrations of terahertz imaging in biomedicine were made several years ago, but few data are available on the optical properties of human tissue at terahertz frequencies.
Berry, E.   +8 more
core   +1 more source

Bessel Terahertz Pulses from Superluminal Laser Plasma Filaments

open access: yesUltrafast Science, 2022
Terahertz radiation with a Bessel beam profile is demonstrated experimentally from a two-color laser filament in air, which is induced by tailored femtosecond laser pulses with an axicon.
Zhelin Zhang   +8 more
doaj   +1 more source

Intense terahertz radiation and their applications [PDF]

open access: yesJournal of Optics, 2016
In this paper, we will review both past and recent progresses in the generation, detection and application of intense terahertz (THz) radiation. We will restrict the review to laser based intense few-cycle THz sources, and thus will not include sources such as synchrotron-based or narrowband sources.
Denis Ferachou   +7 more
openaire   +1 more source

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