Abstract: The invention relates to a method for producing at least one buried micro-channel on a substrate consisting in applying and moving an optic radiation on a stacking in a predetermined direction. The stacking successively comprises a deformable absorbent thin layer and a thin-layer formed by a material able to locally release gas due to the action of a heating caused by the optic radiation. Local application of the optic radiation on the stacking forms a gas bubble, by local heating of the thin layer able to release gas, deforming the absorbent thin layer. Then the movement of the optic radiation extends the deformation of the absorbent thin layer in the direction of movement of the optic radiation and forms the buried micro-channel. The invention also relates to a micro-device for transportation of fluid and to a micro fuel-cell.

Abstract: The medium comprises a bilayer stack constituted of an inorganic layer (30) and a semi-reflecting layer (32). The inorganic layer (30) can be deformed under the effect of light radiation (34) passed through the semi-reflecting layer, which lowers the reflection coefficient of the stack. Application to irreversible recording of information data, for example on discs.

Abstract: An optical recording medium comprises first and second substrates wherebetween there is arranged at least one first photosensitive layer, preferably made of inorganic material. The first photosensitive layer comprises a front face for receiving optical radiation, by means of the second substrate, during data writing and/or reading operations. A first deformable layer, transparent to the optical radiation, is arranged between the first photosensitive layer and the second substrate. The first substrate comprises a patterned front face, so as to form a preferably spiral-shaped groove enabling precise data writing and/or reading to be performed by means of an automatic focusing control and track monitoring system.

Abstract: The optical recording medium comprises an active layer of inorganic material, able to undergo deformations due to the effect of an optical radiation, presenting a front face designed to receive an optical radiation during writing operations and a rear face. An additional metal layer is arranged on the rear face of the active layer. The additional metal layer preferably has a thickness comprised between 9 nanometers and 12 nanometers. The inorganic material of the active layer can be a tellurium and zinc alloy comprising an atomic percentage of between 60% and 70% of zinc and between 30% and 40% of tellurium, and preferably 65% of zinc and 35% of tellurium. The medium can comprise a semi-reflecting layer arranged on the front face of the active layer and/or a protective layer made of polymer material on the rear face.

Abstract: The optical recording medium comprises an active layer made of inorganic material, presenting a front face for receiving an optical radiation during writing operations, and a rear face. The inorganic material is a tellurium and zinc alloy comprising an atomic percentage of between 60% and 70% of zinc and between 30% and 40% of tellurium. The alloy comprises preferably 65% of zinc and 35% of tellurium. The medium may comprise a semi-reflecting layer arranged on the front face of the active layer and/or an additional metal layer arranged on the rear face and/or a protective layer of polymer material on the rear face. Thus, writing powers, a mark resolution and a storage density corresponding to DVD format specifications may be achieved.

Abstract: The present invention relates to a method for detection of a molecular recognition reaction without labelling and a device for using this method. This invention concerns the general field of detection and analysis of molecular recognition between a first and a second molecule, for example a biological molecule. The method of the present invention consists of the detection of the molecular recognition by a photothermal method.

Abstract: The present invention relates to an optical medium, having on at least one face (10), a superficial recording level (20) and a buried recording level (30), capable of being read and recorded by means of an optical beam having a wave length between 620 and 670 nanometers, and wherein each of the levels has a reflectivity between 6% and 12%.

Abstract: The medium comprises a bilayer stack constituted of an inorganic layer (30) and a semi-reflecting layer (32). The inorganic layer (30) can be deformed under the effect of light radiation (34) passed through the semi-reflecting layer, which lowers the reflection coefficient of the stack.