Measurements of the small wave tilt using the optical vortex
interferometer with the Wollaston prism
Agnieszka Popiołek-Masajada, Piotr Kurzynowski, Władysław A. Woźniak, Monika Borwińska,
Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Abstract
A classical Mach-Zehnder two-beam interferometer was modernized using the Wollaston prism which allowed obtaining stable set of specific optical markers – optical vortices. This new interferometer setup which generated optical vortices was used to measure small angle displacements. Theoretical investigation concerning the sensitivity and accuracy of the used setup was confirmed by numerical analysis and practical experiments.
Keywords: Optical Vortex Lattice; Polarization; Interferometry.
