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Study on Terahertz Time‐Domain Spectroscopy of HNS by Sample Measure and Quantum Chemistry Calculation
Author(s) -
Huang Ping,
Shi Weifan
Publication year - 2011
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.201010041
Subject(s) - terahertz radiation , spectroscopy , terahertz spectroscopy and technology , measure (data warehouse) , range (aeronautics) , terahertz time domain spectroscopy , absorption (acoustics) , absorption spectroscopy , fourier transform infrared spectroscopy , time domain , spectral line , materials science , explosive material , analytical chemistry (journal) , optics , physics , optoelectronics , chemistry , quantum mechanics , computer science , chromatography , database , composite material , computer vision , organic chemistry
The absorption spectra of 2,2′,4,4′,6,6′‐Hexanitrostilbene (HNS), in the frequency range between 0.2 and 4.0 THz, are calculated using quantum chemistry calculations and resulted in 1.9 THz and 3.3 THz. The experimental result offered by THz time‐domain spectroscopy and FTIR shows that the characteristic peaks are located at 1.7 THz and 3.1 THz. Compared with experimental results, all the evidences indicate that HNS has distinct characteristic peaks, which agree with the simulation results. It is believed that this method can detect this material quickly and accurately, which means a lot to the explosives detection.