13 June 2005 Polarization plane rotator used as a phase stepping device in a 2-channel shearing speckle interferometer
Author Affiliations +
Abstract
A polarization phase stepping method is presented based on the use of a polarization plane rotator that establishes a relative phase shift between two counter-rotating circularly polarized beams. The phase step can be made relatively accurate, since it just depends on the accuracy with which the rotator is manufactured, and not on its orientation. The phase stepping method has been implemented in a single-camera two-channel shearing speckle interferometer, with two optical channels, and a relative phase step of π/2 between them.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter A. A. M. Somers, Nandini Bhattacharya, "Polarization plane rotator used as a phase stepping device in a 2-channel shearing speckle interferometer", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005); doi: 10.1117/12.612562; https://doi.org/10.1117/12.612562
PROCEEDINGS
10 PAGES


SHARE
Back to Top