Characterization of prospective explosive materials using terahertz time-domain spectroscopy
PBN-AR
Instytucja
Instytut Optoelektroniki (Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Applied Optics
ISSN
1559-128X
EISSN
Wydawca
DOI
URL
Rok publikacji
2016
Numer zeszytu
17
Strony od-do
4575-4583
Numer tomu
55
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Język
en
Treść
We investigated six prospective explosive materials in the terahertz range using time-domain spectroscopy. A family of energetic azotetrazolate salts and two caged nitramines were studied. A number of distinct spectral features were observed in the 0.8-3.2 THz frequency range. In transmission configuration in ambient temperature, we determined the absorption coefficient and the refractive index of the materials, which were compressed as pellets. Because the visibility of some absorption peaks was not clear, additionally we performed characterization of these materials in a temperature range from -175 degrees C to 0 degrees C, which resulted in highlighting peaks with low amplitude. Because the considered explosives are insensitive to compression, we also measured them using an attenuated total reflection (ATR) technique, in which sample preparation is easier than with pressed pellets. The absorption peaks measured by ATR agree well with those determined in transmission. This suggests that ATR also can be used for identification of these classes of materials. (C) 2016 Optical Society of America
Cechy publikacji
ORIGINAL_ARTICLE
Inne
System-identifier
737720
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