Results 11 to 20 of about 3,579 (212)

Characterization of Wheat Varieties Using Terahertz Time-Domain Spectroscopy [PDF]

open access: yesSensors, 2015
Terahertz (THz) spectroscopy and multivariate data analysis were explored to discriminate eight wheat varieties. The absorption spectra were measured using THz time-domain spectroscopy from 0.2 to 2.0 THz.
Hongyi Ge   +4 more
doaj   +3 more sources

Terahertz Time-Domain Spectroscopy [PDF]

open access: yesScientific Video Protocols, 2020
Time-Domain terahertz spectroscopy (THz TDS) has attracted attention from many scientific disciplines as it enables accessing the gap between electronic and optical techniques. One application is to probe spintronic dynamics in sub-picosecond time scale. Here, we discuss principles and technical aspects of a typical THz TDS setup.
Chiara Ciccarelli   +6 more
openaire   +2 more sources

Broadband circular polarization time-domain terahertz spectroscopy [PDF]

open access: yesPhysical Review Materials, 2020
Light-matter interactions are key in providing fundamental information about materials. Even in the linear-response regime, the spectroscopic response of a material encodes in it many properties of the ground state as well as of its excitations.
Evan V. Jasper   +8 more
openaire   +2 more sources

Machine Learning Techniques for THz Imaging and Time-Domain Spectroscopy

open access: yesSensors, 2021
Terahertz imaging and time-domain spectroscopy have been widely used to characterize the properties of test samples in various biomedical and engineering fields.
Hochong Park, Joo-Hiuk Son
doaj   +1 more source

Time-domain terahertz spectroscopy in high magnetic fields [PDF]

open access: yesFrontiers of Optoelectronics, 2020
There are a variety of elementary and collective terahertz-frequency excitations in condensed matter whose magnetic field dependence contains significant insight into the states and dynamics of the electrons involved. Often, determining the frequency, temperature, and magnetic field dependence of the optical conductivity tensor, especially in high ...
Baydin, Andrey   +3 more
openaire   +4 more sources

Terahertz quasi time domain spectroscopy

open access: yesOptics Express, 2009
It is shown theoretically and experimentally that for the specific case of an equidistant frequency spacing of semiconductor laser modes, signals similar to terahertz (THz) time domain spectroscopy (TDS) can be detected in a standard photomixer setup.
Maik, Scheller, Martin, Koch
openaire   +2 more sources

Coal-rock interface recognition based on terahertz time-domain spectroscopy

open access: yesGong-kuang zidonghua, 2017
In order to study feasibility of coal-rock interface recognition based on terahertz time-domain spectroscopy, some experiments were taken out by using terahertz time-domain spectroscopy, which used gas coal and sandstone powder tablet as samples.
WANG Xin   +3 more
doaj   +1 more source

Identification of Rice Varieties Based on Terahertz Time Domain Spectroscopy

open access: yesShipin gongye ke-ji, 2022
In order to achieve accurate identification of rice varieties, a rice variety identification method based on terahertz time-domain spectroscopy (THz-TDS) technology was proposed.
Qian WANG   +4 more
doaj   +1 more source

Multiple Photoconductive Antennas Terahertz Power Synthesis Technology Based on Time-Domain Waveform Consistency

open access: yesIEEE Photonics Journal, 2017
In order to increase the terahertz output power of the photoconductive antenna, a new multiple terahertz power synthesis technology based on terahertz time domain spectroscopy waveform consistency is proposed. The dipole photoconductive antenna with 500-&
Hu Deng   +3 more
doaj   +1 more source

Terahertz spectroscopy and imaging for gastric cancer diagnosis

open access: yesJournal of Spectral Imaging, 2020
Terahertz waves are sensitive to differences in biological tissue hydration, we present promising results regarding the feasibility of applying this with terahertz time-domain spectroscopy and imaging for early detection of cancer through the ...
Faustino Wahaia   +5 more
doaj   +1 more source

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