Research Article

Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances

Figure 3

The apparent Raman cross section for the Raman shifted signal at 1378 cm−1 and 1401 cm−1 in NM as a function of incident wavelength. The concentration of NM was between 32,500 and 32,700 ppm at room temperature, 291 K.
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