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(a) Fourier transform amplitude of the measured terahertz waveform after transmitting through a PE pellet (curve 1) and a RDX pellet (curve 2). (b) Absorption (power) spectrum of RDX pellet measured using a terahertz pulsed spectrometer (curve 1) and a FTIR spectrometer (curve 2).
(Color online) Schematic diagram of the sample (a), and its terahertz time-domain image (peak amplitude) (b). False-color terahertz chemical maps showing the spatial distributions of lactose (c), sucrose (d), and RDX (e).
(a) Fourier transform amplitude of the measured terahertzwaveforms after reflecting from a PE pellet (curve 1) and a piece of RDX explosive (curve 2). The inset show the terahertz wave form measured for RDX explosive. (b) The first derivative absorption spectrum of RDX explosive obtained from a reflection measurement (curve 1) and a transmission measurement (curve 2).
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