Experimental generation of steering odd dark beams of finite length

摘要

We report what we believe is the first realization of odd dark beams of finite length under controllable initial conditions. We obtain mixed edge-screw phase dislocations by reproducing binary computer-generated holograms. Two effective ways to control the steering of the beams are analyzed experimentally and compared with numerical simulations. (C) 2000 Optical Society of America [S0740-3224(00)01412-0] OCIS codes: 190.4420, 190.5940, 090.1760. [References: 28]