Abstract

By observation of scattered radiation at 90/sup 0/ relative to a probe laser beam, the particulate matter that is formed above metallic surfaces following laser vaporization can be monitored. An acoustooptic deflector scans the direction of the probe beam so that spatially and temporally resolved distributions can be recorded from a single transient event. Distinct scattering maps are obtained as a function of laser power, surface property, adsorption characteristics, and material volatility. The results can be used to understand the laser-surface interactions, so that atom formation can be better controlled for analytical applications.

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