Figure 1
From: Gear-like rotatable optical trapping with radial carpet beams

(a) The intensity pattern immediately after an amplitude radial grating having binary profile with 10 spokes illuminated by a plane wave and (b) the calculated intensity of the resulted RCB at propagation distance 120 cm. (c, d) The same patterns when a Gaussian beam having a radius of 2 mm illuminates the same radial grating. All lengths are in millimeters.