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Progress in application of terahertz time-domain spectroscopy for pharmaceutical analyses [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Terahertz time-domain spectroscopy is an analytical method using terahertz time-domain pulses to study the physical and chemical properties of substances.
Shuteng Huang   +3 more
doaj   +2 more sources

Terahertz time-domain spectroscopy of edible oils [PDF]

open access: yesRoyal Society Open Science, 2017
Chemical degradation of edible oils has been studied using conventional spectroscopic methods spanning the spectrum from ultraviolet to mid-IR. However, the possibility of morphological changes of oil molecules that can be detected at terahertz ...
Alex Dinovitser   +2 more
doaj   +5 more sources

Integrated transmission-reflection strong-field terahertz time-domain spectroscopy [PDF]

open access: yesiScience
Summary: Strong-field terahertz time-domain spectroscopy (THz-TDS) is an effective tool for material testing, non-destructive testing, and modulation device measurement.
Jianghao Li   +10 more
doaj   +2 more sources

Detection of Microplastic in Salts Using Terahertz Time-Domain Spectroscopy [PDF]

open access: yesSensors, 2021
We report on a prototypical study of the detection of microplastic embedded in table salts by using terahertz time-domain spectroscopy. In the experiment, high-density polyethylene (HDPE) of sizes from 150 to 400 μm are used as a representative ...
Jaeseung Im   +5 more
doaj   +2 more sources

Wideband Beam Steering Concept for Terahertz Time-Domain Spectroscopy: Theoretical Considerations [PDF]

open access: yesSensors, 2020
Photonic true time delay beam steering on the transmitter side of terahertz time-domain spectroscopy (THz TDS) systems requires many wideband variable optical delay elements and an array of coherently driven emitters operating over a huge bandwidth.
Xuan Liu   +4 more
doaj   +2 more sources

An introduction to terahertz time-domain spectroscopic ellipsometry

open access: yesAPL Photonics, 2022
In the past, terahertz spectroscopy has mainly been performed based on terahertz time-domain spectroscopy systems in a transmission or a window/prism-supported reflection configuration.
X. Chen, E. Pickwell-MacPherson
doaj   +1 more source

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

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

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

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