Results 51 to 60 of about 42,760 (220)

Detection of incoherent broadband terahertz light using antenna-coupled high-electron-mobility field-effect transistors

open access: yes, 2017
The sensitivity of direct terahertz detectors based on self-mixing of terahertz electromagnetic wave in field-effect transistors is being improved with noise-equivalent power close to that of Schottky-barrier-diode detectors.
Li, Xiang(李想)   +9 more
core   +1 more source

MILLIMETER AND TERAHERTZ RADIATION DETECTOR

open access: yesVestnik SSUGT (Siberian State University of Geosystems and Technologies), 2021
The aim of this work is an analytical review of terahertz and millimeter-wave radiation receivers. Classification of terahertz radiation receivers and their comparative characteristics are made. Various aspects of the application of terahertz radiation, as well as the main types and types of receivers of this radiation, are considered in this paper ...
Igor V. Minin, Oleg V. Minin
openaire   +1 more source

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

Trends in the applications of terahertz radiation in oral oncology treatments

open access: yesOral 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   +1 more source

Terahertz amplifiers based on gain reflectivity in cuprate superconductors

open access: yesPhysical Review Research, 2022
We demonstrate that parametric driving of suitable collective modes in cuprate superconductors results in a reflectivity R>1 for frequencies in the low terahertz regime.
Guido Homann   +2 more
doaj   +1 more source

Spectral self-action of THz emission from ionizing two-color laser pulses in gases [PDF]

open access: yes, 2014
The spectrum of terahertz (THz) emission in gases via ionizing two-color femtosecond pulses is analyzed by means of a semi-analytic model and finite-difference-time-domain simulations in 1D and 2D geometries.
Babushkin, Ihar   +4 more
core   +7 more sources

Terahertz Radiation Effects and Biological Applications

open access: yesJournal of Infrared, Millimeter, and Terahertz Waves, 2009
We present a brief overview of the literature on biological applications and experimental data on the effects of THz radiation. The region of the electromagnetic spectrum from 0.1 to 10 THz is a frontier area for research in physics, chemistry, biology, materials science and medicine. This area has recently begun to be filled by a variety of sources of
Ramundo Orlando Alfonsina, Gallerano GP
openaire   +4 more sources

Terahertz Radiation Detection by Field Effect Transistor in Magnetic Field

open access: yes, 2009
We report on terahertz radiation detection with InGaAs/InAlAs Field Effect Transistors in quantizing magnetic field. The photovoltaic detection signal is investigated at 4.2 K as a function of the gate voltage and magnetic field.
Boubanga-Tombet, S.   +8 more
core   +3 more sources

Modeling DNA response to terahertz radiation [PDF]

open access: yesPhysical Review E, 2011
Collective response of DNA to terahertz electric fields is studied in a simple pair bond model. We confirm, with some caveats, a previous observation of destabilizing DNA breather modes and explore the parameter dependence of these modes. It is shown that breather modes are eliminated under reasonable physical conditions and that thermal effects are ...
openaire   +2 more sources

Progresses towards the application of terahertz technologies

open access: yesDianzi Jishu Yingyong, 2019
Science and technologies based on terahertz radiation have developed rapidly over the recent decades, which inspires the application attempts and research of terahertz technologies in several fields.
Wu Shuai, Qu Hao, Tu Hao, Feng Hui
doaj   +1 more source

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