Multiple optical traps from a single laser beam using a mechanical   element
  The use of a wire mesh facilitates creation of multiple optical traps for manipulation of small micron or sub-micron particles. Such an array of optical traps can be easily controlled. The trap that is formed in this manner is a continuous trap; it obviates the need to time share a laser beam among a set of positions, as is presently done in conventional multiple traps. 
J.A. Dharmadhikari, A.K. Dharmadhikari, and D. Mathur