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Publication Detail
Optical trapping of porous silicon nanoparticles
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Donato MG, Monaca MA, Faggio G, De Stefano LD, Jones PH, Gucciardi PG, Maragò OM
  • Publication date:
    16/12/2011
  • Journal:
    Nanotechnology
  • Volume:
    22
  • Issue:
    50
  • Status:
    Published
  • Print ISSN:
    0957-4484
Abstract
Silicon nanoparticles obtained by ball-milling of a 50% porosity silicon layer have been optically trapped when dispersed in a water-surfactant environment. We measured the optical force constants using linearly and radially polarized trapping beams finding a reshaping of the optical potential and an enhanced axial spring constant for the latter. These measurements open perspectives for the control and handling of silicon nanoparticles as labeling agents in biological analysis and fluorescence imaging techniques. © 2011 IOP Publishing Ltd.
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