Terahertz Frequency Continuous-Wave Spectroscopy  and Imaging of Explosive Substances

<table>Images of a triangle-shaped  cyclotrimethylene-trinitramine (RDX) explosive concealed within a paper envelope. Three images are shown using the OPO’s tuning frequencies of 0.77, 0.83, and 0.90 THz. The highest image absorption contrast is observed at the 0.83 THz tuning frequency.</table>

International Scholarly Research Notices

fig8

Figure 8

Figure 8: Terahertz Frequency Continuous-Wave Spectroscopy  and Imaging of Explosive Substances 