Title :
THz spectroscopy and imaging in security applications
Author :
Palka, Norbert ; Szustakowski, Mieczyslaw ; Kowalski, Marcin ; Trzcinski, Tomasz ; Ryniec, Radoslaw ; Piszczek, Marek ; Ciurapinski, Wieslaw ; Zyczkowski, Marek ; Zagrajek, Przemyslaw ; Wrobel, Janusz
Author_Institution :
Inst. of Optoelectron., Mil. Univ. of Technol., Warsaw, Poland
Abstract :
We compared terahertz transmission spectra of explosives measured by means of Time Domain Spectroscopy (TDS) and an Optical Parametric Oscillator-based system (OPO). Reflection spectra of pure explosives were measured in reflection configuration by means of TDS in the range 0.3-2.5THz. We also analyzed influence of the surface roughness on reflectance and phase spectra of RDX-plastic based explosives. Next, we present a thermal phantom of human body working in THz range, which was developed for testing of THz cameras. We demonstrate the possibility of improvement of the quality of the image captured by a commercially available passive THz camera.
Keywords :
cameras; image processing; millimetre wave spectroscopy; optical parametric oscillators; terahertz wave imaging; terrorism; RDX-plastic based explosives; THz cameras; THz imaging; THz spectroscopy; explosives terahertz transmission spectra; frequency 0.3 THz to 2.5 THz; human body; optical parametric oscillator-based system; surface roughness; thermal phantom; time domain spectroscopy; Cameras; Explosives; Materials; Phantoms; Reflection; Reflectivity; Spectroscopy; THz camera; THz radiation; image processing; thermal phantom; time domain spectroscopy;
Conference_Titel :
Microwave Radar and Wireless Communications (MIKON), 2012 19th International Conference on
Conference_Location :
Warsaw
Print_ISBN :
978-1-4577-1435-1
DOI :
10.1109/MIKON.2012.6233513
