Spatiotemporal evolution of plasma molecular emission following laser ablation of explosive analogs

Jonathan Merten; Matthew Jones; Cheyenne Sheppard; Christian Parigger; Susan Allen

doi:10.1117/12.2016440

29 May 2013 Spatiotemporal evolution of plasma molecular emission following laser ablation of explosive analogs

Jonathan Merten, Matthew Jones, Cheyenne Sheppard, Christian Parigger, Susan Allen

Proceedings Volume 8710, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV; 87100S (2013) https://doi.org/10.1117/12.2016440
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

The spatial and temporal evolution of the CN molecular emission following laser ablation of a TNT analog (3- nitrobenzoic acid) has been studied along with ablation of targets that contain neither nitro groups nor C-N bonds. At a fluence of ~10⁴ J/cm², behavior indicative of the ablation of native CN bonds has been observed in samples containing no native CN bonds. The recorded data show significant plasma background emissions that pose difficulties for direct spectral imaging. Spatially resolved images suggest that some of the observed phenomena are simply the result of the interaction of the plasma and the observation volume of the collection optics.

Citation Download Citation

Jonathan Merten, Matthew Jones, Cheyenne Sheppard, Christian Parigger, and Susan Allen "Spatiotemporal evolution of plasma molecular emission following laser ablation of explosive analogs", Proc. SPIE 8710, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV, 87100S (29 May 2013); https://doi.org/10.1117/12.2016440

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