Figure 3
From: Gear-like rotatable optical trapping with radial carpet beams
Generated radial carpet patterns by the diffraction of a Gaussian beam from different radial amplitude gratings having binary profile and different spoke numbers at a distance 120 cm from the grating (first column) and at the focus of the objective lens (second column). Different images of the trapped polystyrene particles with a diameter of 1.09 μm (third column) and 2.54 μm silica particles (forth column). The laser power in each individual trapping spot at the sample is indicated in the second column.
