Mueller matrix error correction for a fringe-free interferometry system.
We present an automated surface profiling system based on a shearing interferometer, in which precise measurement of the polarization states eliminates fringe ambiguity. A full error correction based on Mueller matrices allows comparatively inaccurate but rapidly switchable liquid-crystal wave plates to be used, enabling unambiguous profile information to be obtained in real time.
Begbie
M L
ML
Department of Physics and Astronomy, The University of Glasgow, UK.
Sibbett
W
W
Padgett
M J
MJ