Comparison of laser-induced breakdown spectra of organic compounds with irradiation at 1.5 and 1.064 {mu}m
A comprehensive investigation of laser-induced breakdown spectroscopy (LIBS) at 1.500 {mu}m of residues of six organic compounds (anthracene, caffeine, glucose, 1,3-dinitrobenzene, 2,4-dinitrophenol, and 2,4-dinitrotoluene) on aluminum substrates is presented and compared with LIBS at the Nd:YAG fundamental wavelength of 1.064 {mu}m. The overall emission intensities were found to be smaller at 1.500 {mu}m than at 1.064 {mu}m, and the ratios of C2 and CN molecular emissions to the H atomic emissions were observed to be less. Possible reasons for the observed differences in LIBS at 1.064 {mu}m versus 1.500 {mu}m are discussed.
- OSTI ID:
- 21175721
- Journal Information:
- Applied Optics, Vol. 47, Issue 31; Other Information: DOI: 10.1364/AO.47.00G149; (c) 2008 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6935
- Country of Publication:
- United States
- Language:
- English
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