Massive Parallel Sorting of Particles Using Unwound Polygonal Vortex Beams

Optical sorting, as one kind of optical tweezers, is used to separate mixed particles in a background environment. This unusual tool has wide application prospect because the non-contact and non-destructive advantages ideally suit pressing need bio-technology. However, most sorting methods devices have been accomplished based on real-time one-by-one which ignored efficiency not applicable high-capacity particles. Although more structured light beams are proposed enhance efficiency, it still enough for desired applications. Here, we propose method massive parallel particles: polygonal vortex (OV) unwound by geometric transformation produce linear OV with kinked distributions. greatly efficiency. We adopt fractal theory illustrate increase region over beam can interact demonstrate that gradient force this large manipulate spherical Rayleigh regime scattering. These results introduce new possibilities particle sorting.