  Laser trapping near the surface of a nanostructured substrate is
demonstrated. Stable microbubbles with radii of 1-20micrometers have been
created and manipulated with sub-micron precision by a focused laser beam in an
immersion oil covering arrays of pairs of gold nanopillars deposited on a glass
substrate. The threshold for bubble creation and trapping characteristics
depended on near-field coupling of nanopillars. The nanometric laser tweezers
showed giant trapping efficiency of Q~50 for the trapped microbubbles.
