Laser-induced breakdown spectroscopy of RDX and HMX with nanosecond, picosecond, and femtosecond pulses

S. Sreedhar; M. Ashwin Kumar; G. Manoj Kumar; P. Prem Kiran; Surya P. Tewari; S. Venugopal Rao

doi:10.1117/12.850007

5 May 2010 Laser-induced breakdown spectroscopy of RDX and HMX with nanosecond, picosecond, and femtosecond pulses

S. Sreedhar, M. Ashwin Kumar, G. Manoj Kumar, P. Prem Kiran, Surya P. Tewari, S. Venugopal Rao

Proceedings Volume 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI; 76650T (2010) https://doi.org/10.1117/12.850007
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Herein we present some of our initial experimental results obtained from the laser induced breakdown spectroscopic (LIBS) measurements of RDX and HMX using nanosecond (ns), picosecond (ps), and femtosecond (fs) laser pulses acquired without gating and delay. RDX and HMX were mixed with KBr and pellets were prepared for the spectroscopic studies. Nanosecond pulses at 532 nm, ps/fs pulses at 800 nm were used for the experiments. The spectra were collected using Ocean Optics 4000/Maya spectrometer using a UV transmitting, 400 μm core diameter fiber in one case and a combination of lenses to collect the light from plasma in the second case. Several features were observed in the spectra exclusive for each pulse domain. The differences/similarities in the spectra collected using different pulses are presented.

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S. Sreedhar, M. Ashwin Kumar, G. Manoj Kumar, P. Prem Kiran, Surya P. Tewari, and S. Venugopal Rao "Laser-induced breakdown spectroscopy of RDX and HMX with nanosecond, picosecond, and femtosecond pulses", Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 76650T (5 May 2010); https://doi.org/10.1117/12.850007

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