Commissariat a L'energie Atomique

Jean Messier

Andre Barraud

Francois Kajzar

Annie Ruaudel

Pierre-Alain Chollet

Apparatus and process for measuring optical, non-linear, harmonic emission characteristics of an isotropic phase: susceptibility coefficient, phase displacement and dispersion. Use is made of a beam converging in a first prism and diverging in a second prism after having been focused in the isotropic phase which it traverses over a distance variable as a function of the aperature angle .alpha..

Apparatus and process for measuring non-linear order three optical

A device for measuring electric fields mainly comprises a laser and a probe provided with a centrosymmetric polymer sheet permitting the generation, under the action of the field, of the second harmonic of the emitted wavelength. Optical fibers carry the incident and reflected waves of the laser to the probe and then to an optical measuring cascade. This device is of particular interest for measuring the electric fields between high voltage coaxial cables.

Device for measuring an electrical field by an optical method

Photosensitive film which can be used in microgravure, wherein it comprises at least one organic monomolecular layer having amphiphilic molecules with at least one irradiation polymerizable function and one aliphatic chain with at least 12 carbon atoms, a polymerizable function being located at the hydrophobic end of said molecules. The photosensitive films can be used with particular advantage in the production of microetched objects, such as optical and holographic systems, integrated optical devices and electronic microcircuits.

Photosensitive film usable in microgravure

The dielectric material is constituted by monomolecular layers of an organic substance, the molecules of which have a long aliphatic chain terminating in a hydrophilic group. The substance is selected from the group in which a lateral group is grafted onto the aliphatic chain and is capable of exchanging a hydrogen bond with an identical adjacent molecule.

Growing community of inventors

Gif sur Yvette, France

Jean Messier