Evaluation of a phase shifting method for vortex localization in optical vortex interferometry |
| |
| Authors: | Agnieszka Popio?ek-Masajada Wojciech Fr?czek |
| |
| Institution: | a Institute of Physics, Wroclaw University of Technology, 50-370 Wroc?aw, Poland
b Department of Chair of Electronic and Photonic Metrology, Wroc?aw University of Technology, ul. B. Prusa 53/55, 50-317 Wroc?aw, Poland |
| |
| Abstract: | The optical vortex interferometer uses a regular lattice of the optical vortices. In the previous papers we showed that changes in vortex lattice geometry can be related to physical quantities of the object being measured. The accuracy of such a measurement depends strongly on the precision of vortex point localization (vortex points are points where wavefront phase is undetermined). In this paper we compared the measurements of object wave tilt calculated from different localization methods applied to real interferograms and evaluate various localization methods. |
| |
| Keywords: | Optical vortex Interferometry Angle measurement |
| 本文献已被 ScienceDirect 等数据库收录！ |
