期刊
APPLIED OPTICS
卷 49, 期 13, 页码 C1-C7出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.49.0000C1
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资金
- U.S. Army Research Office [W911NF-06-1-0206]
- Multidisciplinary University Research Initiative (MURI) [W911NF-06-1-0446]
An investigation of laser-induced breakdown spectroscopy (LIBS) of polymers, both in bulk form and spin coated on Si wafers, with laser irradiation in the mid-infrared spectral region is presented. Of particular interest is whether the LIBS signals are enhanced when the laser wavelength is resonant with a fundamental vibrational transition of the polymer. Significant increases in the LIBS signals were observed for irradiation on hydride stretch fundamental transitions, and the magnitude of the enhancement showed a strong dependence on the mode excited. The role of the substrate was investigated by comparison of results for bulk and spin-coated samples. The polymers investigated were Nylon 12 and poly(vinyl alcohol-co-ethylene). (C) 2009 Optical Society of America
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