Comparison of terahertz time-domain spectroscopy based on photoconductive antenna and electro-optic sampling and the optical parameter measurement of GaSe nanofilm in THz band
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.166822
Abstract: Abstract Due to the advantages of THz wave in nondestructive examination (NDE) of materials, terahertz time-domain spectrometer (THz-TDS) has become a mature device for THz detection. Thus, improving signal-to-noise ratio (SNR) and reliability of THz-TDS… read more here.
Keywords: thz; terahertz time; photoconductive antenna; thz tds ... See more keywords
Characterizing polymorphism and crystal transformation of polylactide by terahertz time-domain spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Polymer Testing"
DOI: 10.1016/j.polymertesting.2016.11.017
Abstract: Abstract Terahertz time-domain spectroscopy (THz-TDS), which has been proved to show promising application in complex polymer systems, was employed to investigate the polymorphism phenomenon and crystal transformation of polylactide (PLA) in this study. The THz-TDS… read more here.
Keywords: thz tds; time; transformation; spectroscopy ... See more keywords
New Insights into the Crystallographic Disorder in the Polymorphic Forms of Aspirin from Low-Frequency Vibrational Analysis.
Sign Up to like & getrecommendations! Published in 2021 at "Molecular pharmaceutics"
DOI: 10.1021/acs.molpharmaceut.1c00727
Abstract: Terahertz time-domain spectroscopy (THz-TDS) is applied to two polymorphs of acetylsalicylic acid (aspirin), and the experimental spectra are compared to lattice dynamical calculations using high accuracy density functional theory. The calculations confirm that forms I… read more here.
Keywords: disorder; thz tds; frequency vibrational; polymorphic forms ... See more keywords
Detecting Crystallinity Using Terahertz Spectroscopy in 3D Printed Amorphous Solid Dispersions.
Sign Up to like & getrecommendations! Published in 2022 at "Molecular pharmaceutics"
DOI: 10.1021/acs.molpharmaceut.2c00163
Abstract: This study demonstrates the applicability of terahertz time-domain spectroscopy (THz-TDS) in evaluating the solid-state of the drug in selective laser sintering-based 3D printed dosage forms. Selective laser sintering is a powder bed-based 3D printing platform,… read more here.
Keywords: solid dispersions; thz tds; amorphous solid; spectroscopy ... See more keywords
Development of Terahertz Imaging Markers for Pancreatic Ductal Adenocarcinoma using Maximum A Posteriori Probability (MAP) Estimation
Sign Up to like & getrecommendations! Published in 2023 at "ACS Omega"
DOI: 10.1021/acsomega.2c07080
Abstract: Pancreatic ductal adenocarcinoma (PDAC) is one of the significant reasons for cancer-related death in the United States due to a lack of timely prognosis and the poor efficacy of the standard treatment protocol. Immunotherapy-based neoadjuvant… read more here.
Keywords: thz tds; maximum posteriori; posteriori probability; ductal adenocarcinoma ... See more keywords
Determination of Pesticides in Flour by Terahertz Time-Domain Spectroscopy (THz-TDS) with Voigt Function Fitting and Partial Least Squares (PLS) Analysis
Sign Up to like & getrecommendations! Published in 2020 at "Analytical Letters"
DOI: 10.1080/00032719.2020.1783676
Abstract: Abstract Terahertz time-domain spectroscopy (THz-TDS) has been used to analyze mixtures of imidacloprid, carbendazim, and flour substrate. A multiple spectra baseline correction (MSBC) method was adopted to eliminate the oblique baseline and improve the signal-to-noise… read more here.
Keywords: thz tds; voigt function; spectroscopy;
3D THz-TDS SAR Imaging by an Inverse Synthetic Cylindrical Aperture
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3240101
Abstract: Terahertz time-domain spectroscopy (THz-TDS) is a promising tool for high-resolution 3D imaging of objects due to the high center frequency and bandwidth compared to microwave systems. In addition, terahertz waves have a higher penetration depth… read more here.
Keywords: aperture; inline formula; thz tds; tex math ... See more keywords
Improved Terahertz Time-Domain Spectroscopy via the Extended Kalman Filter
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Journal of Selected Topics in Quantum Electronics"
DOI: 10.1109/jstqe.2023.3269048
Abstract: To implement terahertz time-domain spectroscopy (THz-TDS) systems that have short integration time and maintain performance, the extended Kalman filter (EKF) has been used. Performance of EKF with THz-TDS on vapor samples and solid samples is… read more here.
Keywords: spectroscopy; adaptive ekf; time; thz tds ... See more keywords
Non-destructive evaluation and fast conductivity calculation of various nanowire-based thin films with artificial neural network aided THz time-domain spectroscopy.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.481094
Abstract: Terahertz time-domain spectroscopy (THz-TDS) has been utilized extensively to characterize materials in a non-destructive way. However, when materials are characterized with THz-TDS, there are many extensive steps for analyzing the acquired terahertz signals to extract… read more here.
Keywords: neural network; thz tds; spectroscopy; conductivity ... See more keywords
Determination of 2DEG parameters in LED heterostructures with three quantum wells In-=SUB=-x-=/SUB=-Ga-=SUB=-1-x-=/SUB=-N/GaN by terahertz time-domain spectroscopy (THz-TDs)
Sign Up to like & getrecommendations! Published in 2023 at "Physics of the Solid State"
DOI: 10.21883/pss.2023.02.55399.503
Abstract: Terahertz time-domain spectroscopy (THz-TDs) has been used to record the resonant frequencies of plasmon oscillations excited in samples of heterostructures with three InxGa1-xN/GaN quantum wells (QWs) by laser pulses with a duration of 130 fs… read more here.
Keywords: sub sub; spectroscopy; time; thz tds ... See more keywords
THz-TDS for Detecting Glycol Contamination in Engine Oil
Sign Up to like & getrecommendations! Published in 2020 at "Applied Sciences"
DOI: 10.3390/app10113738
Abstract: There continues to be a need for an in-situ sensor system to monitor the engine oil of internal combustion engines. Engine oil needs to be monitored for contaminants and depletion of additives. While various sensor… read more here.
Keywords: glycol contamination; engine; engine oil; thz tds ... See more keywords