16 datasets found

The polarimetric information is fundamentally similar for the micro-wave (radar), infrared and visible (optics) domains. However, measurement instruments vary...

Applying the Interferometric Baade-Wesselink method, hereafter IBW method, toVINCI/VLTI observations we determine the distance of seven Cepheids. For l Car, the more...

In order to increase the imaging capabilities and the attainable resolution of the observing instruments in astronomy, the High Angular Resolution prospective proposes...

International audience

The goal of this work has been the evaluation of PolInSAR technique potential for the extraction of forest physical parameters and the transposition of such analysis...

The huge enhancement of the creep of plasterboard by humid environments is an old problem in the building industry, but its origin remains unknown. To understand this...

The first part of this manuscript (Chapters 1 to 3) includes all of my work on the dimensional metrology at the nanoscale. After giving an overview of the...

Scanning probe microscopes are very well used for characterization at the nanometer scale. To ensure the measurement coherency and the accuracy of the results, those...

In this thesis, I propose a new optical technique for measuring 3D relative positions, sizes and refractive indices of a set of particles, which are illuminated by a...

This thesis presents research and development work on synchrotron X-ray at-wavelength metrology methods. Two approaches for measuring the phase of an X-ray wavefront...

Thanks to high angular resolution abilities, the hypertelescope concept forms a promising way to develop new astronomical instruments. However, its feasibility have to...

It has been recently demonstrated that integrated optics could enhance accuracy, stability, and ease of use of stellar interferometry techniques. The subject of this...

2011

Gravitational waves have been predicted by Einstein in his General Relativity theory. They are perturbation of the space-time metric and we try to reveal them by laser...

We present LOFI (Laser Optical Feedback Imaging). The main advantage of this technique is that it is auto-aligned, as the laser plays both the role of an emitter and a...

International audience