Simultaneous acquisition of pi/2 phase-stepped interferograms with a photorefractive Bi12GeO20 crystal: application to real-time double-pulse holography

Laurent Labrunie (1) , Gilles Pauliat (1) , Gérald Roosen (1) , Jean-Claude Launay (2)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Manolia
2 PRAME - Pôle de Recherche Aquitain pour les Matériaux dans l'Espace

We present a novel method for real-time analysis of vibrations in double-pulse laser holography. Two pi/2 phase-stepped interferograms are obtained simultaneously. An experimental demonstration gives a phase measurement with an accuracy of 4±.

Domains: Optics [physics.optics]

Laurent Labrunie, Gilles Pauliat, Gérald Roosen, Jean-Claude Launay. Simultaneous acquisition of pi/2 phase-stepped interferograms with a photorefractive Bi12GeO20 crystal: application to real-time double-pulse holography. Optics Letters, 1995, 20 (15), pp.1652-1654. ⟨hal-00856958⟩