Characteristic fringe function for time-average holography of periodic nonsinusoidal vibrations.
In this paper the characteristic fringe function of hologram interferometry has been evaluated for the case of periodic, nonsinusoidal vibrations represented by a Jacobian elliptic function. To consider the reconstructed holographic image of an object, use has been made of an equation derived from considerations of the effect of motion on coherence. Graphical representation of the fringe irradiance distribution in the reconstructed image is given. It is shown that, as the motion departs from pure sinusoidal form, the intensity of the fringes increases considerably as compared with that for a pure sinusoidal case.
P C
PC
Gupta
K
K
Singh