Use of photorefractive materials for holographic recording: from crystal study to camera device in view of applied holographic interferometry

摘要

We present a holographic camera based on a photorefractive crystal. A first prototype instrument has been studied and built on the basis of a broad optimization study. Some applications in high accuracy displacement/deformation metrology are presented. This first instrument generation was not completely portable and flexible of use. For that reason, a compact device has been designed and is presented. New applications of this holographic camera are shown. All theses achievements show the versatility and flexibility of utilization, as well as the high degree of usefriendliness, of a photorefractive crystal based holographic camera. Future prospects are then discussed.