Abstract
Optical trapping of gold nanoparticles is experimentally demonstrated using radially and azimuthally polarized beams. The transverse optical trapping stiffness of gold nanoparticles is measured. The radially polarized beam exhibits a higher trapping efficiency than the azimuthally polarized beam and the Gaussian beam. The transverse stiffness of particles with different diameters is measured experimentally and calculated via the discrete-dipole approximation method, and good agreement between theory and experiment is found.
Original language | English |
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Pages (from-to) | 1694-1696 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 37 |
Issue number | 10 |
DOIs | |
Publication status | Published - 15 May 2012 |
Externally published | Yes |