Results 11 to 20 of about 3,740 (211)

Mail Inspection Based on Terahertz Time-Domain Spectroscopy

open access: yesApplied Sciences, 2021
One of the most prominent applications of terahertz time-domain spectroscopy is the spectral investigation of materials covered by visibly opaque objects. Therefore, terahertz waves are well suited to inspect the content of mail. We report on our work on
Daniel Molter   +10 more
doaj   +1 more source

Integrated Imaging and Spectroscopic Analysis of Painted Fresco Surfaces Using Terahertz Time-Domain Technique

open access: yesHeritage, 2023
Terahertz time-domain (THz-TD) imaging plays an increasingly significant role in the study of solid-state materials by enabling the simultaneous extraction of spectroscopic composition and surface topography in the far-infrared region (3–300 cm−1 ...
Alessia Artesani   +5 more
doaj   +1 more source

Optoelectronic frequency-modulated continuous-wave terahertz spectroscopy with 4 THz bandwidth

open access: yesNature Communications, 2021
Time-domain spectroscopy with terahertz frequencies typically requires complex and bulky systems. Here, the authors present an opto-electronics-based, frequency-domain terahertz sensing technique which offers competitive measurement performance in a much
Lars Liebermeister   +7 more
doaj   +1 more source

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

Terahertz Portable Handheld Spectral Reflection (PHASR) Scanner

open access: yesIEEE Access, 2020
We report on the development and characterization of a handheld terahertz (THz) time-domain spectroscopic scanner for broadband imaging between approximately 0.25 and 1.25 THz.
Zachery B. Harris   +2 more
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 mat- ter 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

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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