ABSTRACT
A new use for the phase-stepping technique in holographic moiré is demonstrated. The method has the advantage of providing instantaneous determination of in-plane and out-of-plane displacements without the necessity for auxiliary carrier fringes.
ABSTRACT
The phase-stepping technique is used to analyze holographic moiré patterns. This new application permits the instantaneous determination of phase functions in both moiré and carrier fringes. Two modified phase-stepping self-calibrating techniques are proposed and demonstrated on computergenerated noisy moiré patterns. The techniques do not complicate the holographic moiré arrangement and do not need auxiliary carrier fringes. A holographic moiré interferometer that has been adapted for these phase-stepping techniques is proposed.
