Commissariat a L'energie Atomique

Mpo International

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Biomerieux Sa

Commissariat À L'énergie Atomique Et Aux Énergies Alternatives

Ludovic Poupinet

Bérangère Hyot

Patrick Chaton

Salim Mimouni

Pierre Desre

Hubert Moriceau

Pierre Gidon

Sergio Nicoletti

Christelle Charpin-Nicolle

Bruno Mourey

Marc Plissonnier

Bernard Bechevet

Yohan Desieres

Eric Jalaguier

Mickaël Brun

Bernard Andre

Jerome Hazart

Luca Perniola

Alain Fargeix

Marie-Francoise Armand

Jérôme Hazart

Frédéric Ginot

Marie-Françoise Armand

Olivier Lemonnier

Robin Perrier

Armelle Novelli Rousseau

Boubacar Traore

Olivier Fallou

A memory device, containing a first electrode, a second electrode and an oxide layer arranged between the first electrode and the second electrode, is produced. The oxide layer has a first zone and a second zone, with the first zone surrounding or being located on either side of the second zone, with the minimum distance dseparating the two electrodes on the second zone of the oxide layer being less than the minimum distance dseparating the two electrodes on the first zone of the oxide layer.

Memory device

An electrode of a light-emitting device of the OLED type adapted for forming with a second electrode, an optical cavity, including at least one layer based on a material of refraction index nincluding a structured face comprising a plurality of recesses filled with a material of refractive index ndifferent from n.

Electrode of a light-emitting device of the OLED type

A near-field detection optical component operating in transmission. It includes at least one portion () forming at least one grating () of diffraction microstructures () succeeding one another over several periods (p), this grating () being capable of converting evanescent waves (), which are established between the component and an object () located in the near field, when it reflects or emits radiation having a wavelength, into propagating waves (') by a diffraction effect during transmission through the portion () forming the grating () of diffraction microstructures (). The period (p) of the grating () being of the order of magnitude of the wavelength of the radiation.

Optical component operating in near-field transmission

The invention relates to the reading of digital optical recordings at very high density (CD, DVD, etc.). Reading is done by a PRML ('Partial Response Maximum Likelihood') technique which uses a model of analog response to the recording of an isolated information bit. Customarily, the response model is represented by four or five signal samples having standardized levels 1 or 2. To take account of particular phenomena of super-resolution reading, the invention proposes the use of a model having 6 to 10 samples that can take 4 or 5 standardized levels. This model can result from the superposition of two simpler models having only two possible levels of samples taken from 1, 2 and 3.

Method of reading optical information in super-resolution

The invention generally pertains to the field of solid immersion lenses for optical applications in high resolution microscopy. The lens of the invention includes a spherical sector limited by a planar surface and an object having nanometric dimensions arranged on the planar surface at the focus of said solid immersion lens. A light-opaque layer having a central opening with nanometric dimensions can be provided on the planar surface, said opening being centred on the focus of the solid immersion lens. The nano-object can be a tube or a thread having a cylindrical shape. The lens of the invention can be made using lithography techniques.

Solid immersion lens and related method for making same

The invention relates to the field of optical information recording. In order to prevent abusive or fraudulent use of storage media, the invention provides a process for intentional degradation of information by application of a laser power below the normal power for reading information recorded in super-resolution on the media. This process relies on the surprising observation that a laser power below the super-resolution read power produces an irreversible degradation of the information recorded. This observation has been made with regard to media composed of a three-layer structure comprising an InSb or GaSb layer between two ZnS/SiOlayers. Application for protecting sensitive data.

Process for intentional deterioration of the contents of an optical recording medium

An irreversible optical recording medium comprises at least an active layer presenting a rear face and a front face designed to receive at least an optical writing radiation. The optical writing radiation enables gas bubbles forming write marks to be formed locally in said active layer by means of a layer forming a gas source arranged on the rear face of the active layer. The layer forming the gas source moreover has a thickness less than or equal to 100 nm so as to limit the height of the bubbles formed in the active layer and therefore to improve tracking when read operations are performed. The layer forming the gas source is preferably made of carbon-doped hydrogenated amorphous silicon oxide.

Irreversible optical recording medium by formation of bubbles having a height limited by the gas source generating them

An optical data storage medium comprises at least one active layer of inorganic material, that is able to undergo local deformations during write operations. The active layer presents a front face which is designed to receive an optical radiation at least during read operations. The support also comprises a thin tin and tellurium based alloy layer forming a semi-reflective layer disposed on the front face of the active layer.

Optical data storage medium comprising a semi-reflective tin and tellurium based alloy layer

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.

Inorganic optical recording medium comprising a heat dissipation layer

The medium comprises a bilayer stack constituted of an inorganic layer () and a semi-reflecting layer (). The inorganic layer () can be deformed under the effect of light radiation () 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.

Irreversible optical recording medium

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.

Method and device for detecting a molecular recognition reaction

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Sassenage, France

Ludovic Poupinet