Chemical Recognition With Broadband THz Spectroscopy

2007 ◽  
Vol 95 (8) ◽  
pp. 1592-1604 ◽  
Author(s):  
Bernd M. Fischer ◽  
Hanspeter Helm ◽  
Peter Uhd Jepsen
Keyword(s):  
Thz Spectroscopy ◽  
Chemical Recognition

scholarly journals Temperature dependent poly(L-lactide) crystallization investigated by Fourier transform terahertz spectroscopy

2021 ◽  
Author(s):  
Seiichiro Ariyoshi ◽  
Satoshi Ohnishi ◽  
Hikaru Mikami ◽  
Hideto Tsuji ◽  
Yuki Arakawa ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Absorption Spectra ◽  
Terahertz Spectroscopy ◽  
Thz Spectroscopy ◽  
Frequency Range ◽  
Temperature Dependent ◽  
Thz Absorption

Poly(L-lactide) (PLLA) was investigated by Fourier transform terahertz (THz) spectroscopy over the frequency range of 1.0 – 8.5 THz. THz absorption spectra were acquired for PLLA samples isothermally crystallized at...

scholarly journals Noninvasive THz spectroscopy for bunch current profile reconstructions at MHz repetition rates

2020 ◽  
Vol 23 (11) ◽  
Author(s):  
Nils Maris Lockmann ◽  
Christopher Gerth ◽  
Bernhard Schmidt ◽  
Stephan Wesch
Keyword(s):  
Thz Spectroscopy ◽  
Current Profile

scholarly journals Continuous-Wave THz Imaging for Biomedical Samples

2020 ◽  
Vol 11 (1) ◽  
pp. 71
Author(s):  
Yaya Zhang ◽  
Chuting Wang ◽  
Bingxin Huai ◽  
Shiyu Wang ◽  
Yating Zhang ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Biomedical Imaging ◽  
Continuous Wave ◽  
Biological Tissues ◽  
Thz Spectroscopy ◽  
Label Free ◽  
Thz Imaging ◽  
Malignant Tumours ◽  
Advantages And Disadvantages ◽  
Imaging Application

In the past few decades, the applications of terahertz (THz) spectroscopy and imaging technology have seen significant developments in the fields of biology, medical diagnosis, food safety, and nondestructive testing. Label-free diagnosis of malignant tumours has been obtained and also achieved significant development in THz biomedical imaging. This review mainly presents the research status and prospects of several common continuous-wave (CW) THz medical imaging systems and applications of THz medical imaging in biological tissues. Here, we first introduce the properties of THz waves and how these properties play a role in biomedical imaging. Then, we analyse both the advantages and disadvantages of the CW THz imaging methods and the progress of these methods in THz biomedical imaging in recent ten years. Finally, we summarise the obstacles in the way of the application of THz bio-imaging application technology in clinical detection, which need to be investigated and overcome in the future.

Two-dimensional THz Spectroscopy of Multiferroic BiFeO3

2020 ◽  
Author(s):  
Brittany E. Knighton ◽  
Megan F. Nielson ◽  
Aldair Alejandro ◽  
Lauren M. Davis ◽  
R. Tanner Hardy ◽  
...  
Keyword(s):  
Thz Spectroscopy ◽  
Two Dimensional ◽  
Multiferroic Bifeo3

scholarly journals A Possible Way for the Detection and Identification of Dangerous Substances in Ternary Mixtures Using THz Pulsed Spectroscopy

Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2365 ◽  
Author(s):  
Vyacheslav A. Trofimov ◽  
Svetlana A. Varentsova
Keyword(s):  
Spectral Properties ◽  
Main Pulse ◽  
Ternary Mixtures ◽  
Thz Spectroscopy ◽  
Time Intervals ◽  
Detection And Identification ◽  
Dangerous Substances ◽  
Spectral Intensities ◽  
Absorption Frequencies ◽  
High Absorption

We discuss an effective tool for the detection and identification of substances in ternary mixtures with similar spectral properties using a broadband reflected THz signal. Nowadays, this is an urgent problem; its effective solution is still far off. Two ternary mixtures of the explosives (RDX+TNT+HMX and RDX+TNT+PETN) were used as the examples for demonstration of the efficiency of the method proposed. The identification is based on the pulsed THz spectroscopy. We follow the spectral intensities together with the use of integral correlation criteria. They use the spectral line dynamics of the THz pulse reflected from the substance under investigation and that of the standard THz signal from database. In order to increase the accuracy and reliability of the identification, we analyze the partial non-overlapping time intervals, containing the main pulse of the reflected THz signal and the sequential sub-pulses. The main pulse is shown to contain information about high absorption frequencies (ν > 2.6 THz) of the mixture components. In the sub-pulses, the absorption frequencies of the components are detected in the range of low (ν < 2.6 THz) and high (ν > 2.6 THz) frequencies. The opportunity of distinguishing the mixtures with similar spectral properties is also shown.

Application of time-domain THz spectroscopy for studying blood plasma of rats with experimental diabetes

2014 ◽  
Vol 22 (3) ◽  
pp. 185-188 ◽  
Author(s):  
O. P. Cherkasova ◽  
M. M. Nazarov ◽  
I. N. Smirnova ◽  
A. A. Angeluts ◽  
A. P. Shkurinov
Keyword(s):  
Blood Plasma ◽  
Time Domain ◽  
Experimental Diabetes ◽  
Thz Spectroscopy

Chemical-recognition-driven selectivity of SnO2-nanowire-based gas sensors

Nano Today ◽  
2021 ◽  
Vol 40 ◽  
pp. 101265
Author(s):  
Hyoungwon Park ◽  
Jae-Hun Kim ◽  
Dustin Vivod ◽  
Sungil Kim ◽  
Ali Mirzaei ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Chemical Recognition

Few-cycle THZ spectroscopy of semiconductor quantum structures

2001 ◽  
Vol 9 (1) ◽  
pp. 76-83 ◽  
Author(s):  
K. Unterrainer ◽  
R. Kersting ◽  
R. Bratschitsch ◽  
T. Müller ◽  
G. Strasser ◽  
...  
Keyword(s):  
Quantum Structures ◽  
Thz Spectroscopy
Sign in / Sign up

Export Citation Format

Share Document