Nanostructure assisted laser desorption of Au+/Au-ions from gold surface below plasma threshold

The process of
$\text{Au}+$
and
$\text{Au}$
-ions formation on a surface of nanostructured gold plate under pulsed laser irradiation with energy density below plasma threshold is studied. The role of nanoscale objects produced on the surface under laser irradiation higher than the plasma threshold in the ion formation process is discussed.