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This presentation will review some of the latest state-of-the-art developments in cold-atom inertial sensors developped at the SYRTE laboratory in Paris.

Sandwich holography has been just used in artwork conservation; its capability in detecting incipient faults or cracks in wooden panel paintings and statues has been tested successfully on models and ancient artifacts under restoration; a part from its ability to render significant services in non destructive inspection, sandwich hologram is expected to find application in other problems having considerable interest as displacement derivative measurement. The purpose of this paper is to extend this simple method of measurement to the study of lining canvas behaviour under a slight mechanical stress, in order to characterize the material employed to line painted canvases, both for improving the existing techniques and for selecting new materials. Some preliminary experimental results on models of lining canvases are presented.

The suitability of sandwich holography for diffusion coefficient measurement in transparent liquid mixtures is demonstrated. Preliminary results concerning the NaCl-water diffusion system are presented.

A holographic non destructive test procedure as a diagnostics tool in art conservation and preservation of ancient wooden panel paintings is presented. A brief discussion of the reability of the method is given. Some examples of experimental results are reported; they show that the defects can be detected in real and non real time on laboratory models, at varying depths,through ambient drift.The examination is made combining sandwich holography and real time holography, without any modification of holographic set up.© (1983) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.