Abstract
Lasers can be used to drive and control Chemical reactions in a confined area by focusing the laser beam into a micrometer size spot. Recent progress in the laser trapping technique1 enables us to manipulate a single particle of the order of tens of microns to hundreds of angstroms. On the basis of these laser characteristics, spectroscopic measurements as well as laser-induced Chemical and/or physical modification of an individual trapped particle could be achieved by introducing both trapping and excitation laser beams on a sample. Now we report what we believe to be the first observation of time-resolved emission spectroscopy and laser ablation of a single trapped polymethyl methacrylate (PMMA) latex (≈5-µm diameter) in water.
© 1990 Optical Society of America
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