RECORDING AND REPRODUCING DOUBLE-EXPOSURE GABOR HOLOGRAMS FOR FORMINGSHEARING INTERFEROGRAMS

This paper analyzes the operation of a shearing interferometer in frin ges of infinite width in the case of double-exposure recording of a Ga bor hologram by means of a negative lens. It shows that, at the stage of reproducing the hologram, a shearing interferogram is recorded in t he Fourier plane that characterizes the axial wave aberrations of the optical system used to form the illumination wavefront of an amplitude scatterer, with a sensitivity increased by a factor of two for a fixe d value of the shift. (C) 1997 The Optical Society of America.