Simultaneous acquisition of pi/2 phase-stepped interferograms with a photorefractive Bi12GeO20 crystal: application to real-time double-pulse holography
Résumé
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±.
Domaines
Optique [physics.optics]Origine | Fichiers éditeurs autorisés sur une archive ouverte |
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