Hologram interferometry of vibrations represented by the square of a Jacobian elliptic function

This paper deals with the evaluation of fringe irradiance distribution in time-average hologram interferometry of periodic, non sinusoidal vibrations represented by the square of a Jacobian elliptic function [ Sn ( u | m )]. Analysis has been done by considering the effect of motion on coherence. The techniques of holographic addition and substraction have been applied to extend the amplitude measurement range. Graphical representation of the fringe irradiance distribution in the reconstructed image is given in all the cases.