The effect of an incident field with a phase screw dislocation (a so-called optical vortex) on the shape of the enhanced backscattering cone was studied theoretically and demonstrated experimentally. We show that the correlation function of the incident field acts as a filter that modifies the shape of the enhanced backscattering cone. The peak value is reduced, and its width is increased as the topological charge of the phase dislocation increases.
© 2005 Optical Society of America
Chaim Schwartz and Aristide Dogariu, "Enhanced backscattering of optical vortex fields," Opt. Lett. 30, 1431-1433 (2005)