Vg. Gusev, DOUBLE-EXPOSURE RECORDING OF A LENSLESS FOURIER SPECKLEGRAM TO FORM ASHEARING INTERFEROGRAM, Journal of optical technology, 65(2), 1998, pp. 128-131
The formation of shearing speckIe-interferograms in fringes of infinit
e width in the case of double-exposure recording of a lensless Fourier
specklegram is considered in the Fresnel approximation. It is shown t
hat the sensitivity of the speckle-interferometer to axial wave aberra
tions is increased by a factor of 2 for a fixed value of the lateral s
hift. (C) 1998 The Optical Society of America.