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Nanometric laser trapping based on nanostructured substrates

A. R. Sidorov·Y. Zhang·A. N. Grigorenko·M. R. Dickinson
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Abstract

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.

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A. R. Sidorov, Y. Zhang, A. N. Grigorenko, M. R. Dickinson. 2006-03-26. Nanometric laser trapping based on nanostructured substrates. https://doi.org/10.1016/j.optcom.2007.06.027

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