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Fourier analysis applied to the characterization of optical wedges with small angles
R Castañeda1, J García-Sucerquia
1Department of Physics, Universidad Nacional de Colombia Sede Medellín, A. A. 3840, Medellín, Colombia. rcastane@perseus.unalmed.edu.co
Applied Optics
|March 8, 2008
Abstract:
A technique for the measurement of optical wedge parameters is shown. It is based on the analysis of the Fourier transform of an interferogram-intensity register. In this domain the angle and the edge orientations of the optical wedge can be determined through a much simpler procedure than the usual interferogram fringe analysis.
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