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, Optical Society of America - OSA Publishing, 1995, 20 (15), pp.1652-1654.
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