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  • Rotational dynamics of optically trapped nanofibers.

    Opt Express. 18(2):822-30. January 18, 2010. View on PubMed.
  • Authors

    Antonio Neves (National Nanotechnology Laboratory (NNL)), Camposeo A, Pagliara S, Saija R, Borghese F, Denti P, Iatì MA, Cingolani R, Maragò OM, and Pisignano D
  • Abstract

    We report on the experimental evidence of tilted polymer nanofiber rotation, using a highly focused linear polarized Gaussian beam. Torque is controlled by varying trapping power or fiber tilt angle. This suggests an alternative strategy to previously reported approaches for the rotation of nano-objects, to test fundamental theoretical aspects. We compare experimental rotation frequencies to calculations based on T-Matrix formalism, which accurately reproduces measured data, thus providing a comprehensive description of trapping and rotation dynamics of the linear nanostructures.

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