Research Article

Resonance-Enhanced Raman Spectroscopy on Explosives Vapor at Standoff Distances

Figure 8

Raman signal from vapor phase measurements at a laser wavelength of 232 nm on (a) acetone at a concentration of 201,000 ppm and (b) acetone and NM at concentrations of 218,000 ppm and 33,700 ppm, respectively.
158715.fig.008a
(a)
158715.fig.008b
(b)