Data processing of Terahertz signals for in situ explosives detection and component analysis via Terahertz time-domain spectroscopy

2012 ◽  
Author(s):  
Jindoo Choi ◽  
Sung Yoon Ryu ◽  
Wonsik Kwon ◽  
Kyung-Soo Kim ◽  
Soohyun Kim
Keyword(s):  
Data Processing ◽  
Time Domain ◽  
Component Analysis ◽  
Explosives Detection ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy

scholarly journals Compound Explosives Detection and Component Analysis via Terahertz Time-Domain Spectroscopy

2013 ◽  
Vol 17 (5) ◽  
pp. 454-460 ◽  
Author(s):  
Jindoo Choi ◽  
Sung Yoon Ryu ◽  
Won Sik Kwon ◽  
Kyung-Soo Kim ◽  
Soohyun Kim
Keyword(s):  
Time Domain ◽  
Component Analysis ◽  
Explosives Detection ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy

Broadband terahertz time-domain spectroscopy of drugs-of-abuse and the use of principal component analysis

The Analyst ◽  
2009 ◽  
Vol 134 (8) ◽  
pp. 1658 ◽  
Author(s):  
Andrew D. Burnett ◽  
Wenhui Fan ◽  
Prashanth C. Upadhya ◽  
John E. Cunningham ◽  
Michael D. Hargreaves ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Time Domain ◽  
Drugs Of Abuse ◽  
Principal Component ◽  
Component Analysis ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Broadband Terahertz

Investigation of Dielectric Properties of Polymers and their Discrimination Using Terahertz Time-Domain Spectroscopy with Principal Component Analysis

2016 ◽  
Vol 71 (3) ◽  
pp. 456-462 ◽  
Author(s):  
Muhammad Mumtaz ◽  
Ahsan Mahmood ◽  
Sabih D. Khan ◽  
M. Aslam Zia ◽  
Mushtaq Ahmed ◽  
...  
Keyword(s):  
Spectral Range ◽  
Time Domain ◽  
Principal Component ◽  
Component Analysis ◽  
Thz Radiation ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Styrene Acrylonitrile ◽  
Characteristic Features ◽  
First Time

Polymers are among the most commonly used materials in our everyday life. They are generally transparent to terahertz (THz) radiation, but are quite difficult to differentiate using optical techniques as few or no characteristic features exist in the spectral range of <2.0 THz for small and portable radiation systems. In this work, we report experimental measurement of refractive indices and absorption coefficients of styrene acrylonitrile (SAN) and Bakelite in the spectral range of 0.2–2.0 THz for the first time. Additionally, we demonstrate that by combining principle component analysis (PCA) with THz time-domain spectroscopy one can differentiate such polymers. In this analysis, the first three principle components PC1, PC2, and PC3 depict >94% variance with a distribution of 72.45%, 11.52%, and 9.38%, respectively.

In situ Determination of the State of Conservation of Paint Coatings on the Kiosk of Guadalajara Using Terahertz Time-Domain Spectroscopy

2019 ◽  
Vol 41 (4) ◽  
pp. 355-364 ◽  
Author(s):  
F. E. M. Lambert ◽  
E. S. Reyes-Reyes ◽  
G. G. Hernandez-Cardoso ◽  
A. M. Gomez-Sepulveda ◽  
E. Castro-Camus
Keyword(s):  
Time Domain ◽  
The State ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Paint Coatings
Sign in / Sign up

Export Citation Format

Share Document