Experimental generation of steering odd dark beams of finite length
  In this work we report the first realization of odd dark beams of finite length under controllable initial conditions. The mixed edge-screw phase dislocations are obtained by reproducing binary computer-generated holograms. Two effective ways to control the steering of the beams are analyzed experimentally and compared with numerical simulations. 
A. Dreischuh (1), D. Neshev (1), G. G. Paulus (2) and H. Walther (2,3)   ((1) Sofia University, Dept. Quantum Electronics, S...