Abstract
UV laser produced microplasmas have been recently evaluated as potential novel detectors for gas chromatography.1 Microplasmas provide signals for photoacoustic, optogalvanic, as well as photometric detection. The emission from these microplasmas was subsequently wavelength-resolved and it has been shown that each analyte molecule exhibits a unique plasma emission spectrum.2 More recently, time-resolved microplasma emission studies were undertaken to determine plasma parameters such as electron density as well as neutral and ionic temperatures.3 Currently our research is aimed at exploring possible laser wavelength effects on the microplasma formation process and on microplasma characteristics.
© 1993 Optical Society of America
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