Modification of Tin (Sn) Metal Surfaces by Surface Plasmon Polariton Excitation
Abstract
We report on the modification of tin (Sn) film surfaces under a laser beam irradiation that triggers surface plasmon polariton (SPP) excitations. The observed surface features in the form of small raised grains, with well-defined rooting, look similar to tin whisker nodules. We attribute the appearance of those features to the field-induced nucleation caused by the SPP related strong electric field. Possible implications of our findings include accelerated-life testing for tin whisker growth-related reliability as well as applications to nanoparticle nucleation.
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