Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances
Figure 4
The apparent Raman cross section for the Raman shifted signal at 1347 cm−1 in DNT as a function of incident wavelength at (a) 354 K, concentration 126 ppm, (b) 368 K, concentration 432 ppm, (c) 371 K, concentration 550 ppm, and (d) 383 K, concentration 1445 ppm.