Phase and interference properties of optical vortex beams.
Laguerre-Gauss vortex beams carrying different topological charges are generated from Hermite-Gauss laser beams emitted by a gas laser, and their phase properties are explored by studying their interference with a plane wave. Interference of two Laguerre-Gauss vortex beams carrying equal but opposite topological charge is also studied by using a modified Mach-Zehnder interferometer. Experimentally recorded intensity profiles are in good agreement with the theoretically expected profiles.
Vickers
John
J
Department of Physics, University of Arkansas, Arkansas 72701, USA.
Burch
Matt
M
Vyas
Reeta
R
Singh
Surendra
S