Open AccessPolarization orientation dependence of the far infrared spectra of oriented single crystals of 1,3,5-trinitro-S-triazine (RDX) using terahertz time–domain spectroscopy
Author(s) -
Von Whitley,
Daniel E. Hooks,
Kyle Ramos,
John F. O’Hara,
Abul K. Azad,
Antoinette J. Taylor,
Jeffrey Barber,
Richard D. Averitt
Publication year - 2009
Publication title -
analytical and bioanalytical chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.86
H-Index - 166
eISSN - 1618-2650
pISSN - 1618-2642
DOI - 10.1007/s00216-009-2741-9
Subject(s) - terahertz radiation , polarization (electrochemistry) , spectroscopy , terahertz time domain spectroscopy , infrared spectroscopy , infrared , terahertz spectroscopy and technology , perpendicular , optics , single crystal , absorption spectroscopy , materials science , analytical chemistry (journal) , spectral line , chemistry , molecular physics , optoelectronics , crystallography , physics , geometry , organic chemistry , mathematics , quantum mechanics , chromatography , astronomy
The far infrared spectra of (100), (010), and (001)-oriented RDX single crystals were measured as the crystal was rotated about the axis perpendicular to the polarization plane of the incident radiation. Absorption measurements were taken at temperatures of both 20 K and 295 K for all rotations using terahertz time-domain spectroscopy. A number of discrete absorptions were found ranging from 10-100 cm(-1) (0.3-3 THz). The absorptions are highly dependent on the orientation of the terahertz polarization with respect to crystallographic axes.
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