Breakdown Spectroscopy Induced by Localized Microwaves for Material Identification
نویسنده
چکیده
This letter introduces a localized microwave technique for direct excitation of solid materials for the sake of their identification by atomic emission spectroscopy. The microwave energy is concentrated on the material surface by a microwave-drill type applicator. The evolved 1-mm hotspot is slightly evaporated and excited as plasma. An optical spectrometer measures the atomic emission spectrum, hence enabling the material identification as in the known laser-induced breakdown spectroscopy (LIBS) technique. The experimental results demonstrate the conceptual feasibility of the localized microwaveinduced breakdown spectroscopy as a low-cost substitute for the laserbased LIBS for material identification in scenarios in which a direct contact with the material to be identified and its slight destruction are permitted. VC 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2281–2283, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26272
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