Abstract

We study experimentally and theoretically the interaction between two optical phase front dislocations of different dimensionality–a vortex (2D object) and an edge dislocation (ID object)–nested in a smooth Gaussian beam by its propagation in a linear medium. A single-charge vortex in a Gaussian was generated using an onaxis computer-generated spiral zone plate. An edge phase dislocation was created by a π-phase jump imposed across the beam by a thin glass plate. To generate the both phase dislocations in the Gaussian beam the thin glass plate was introduce in the beam just before the computer-generated spiral zone plate. Figure 1 shows the summary of experimental results.

© 2001 Optical Society of America