title: Wave-front recovery from two orthogonal sheared interferograms.
abstract: We present a new technique for using the information of two orthogonal lateral-shear interferograms to estimate an aspheric wave front. The wave-front estimation from sheared inteferometric data may be considered an ill-posed problem in the sense of Hadamard. We apply Thikonov regularization theory to estimate the wave front that has produced the lateral sheared interferograms as the minimizer of a positive definite-quadratic cost functional. The introduction of the regularization term permits one to find a well-defined and stable solution to the inverse shearing problem over the wave-front aperture as well as to reduce wave-front noise as desired.
authors.forename: M
authors.initials: M
authors.lastname: Servin
authors.forename: D
authors.initials: D
authors.lastname: Malacara
authors.forename: J L
authors.initials: JL
authors.lastname: Marroquin