Patent application number | Description | Published |
20080259778 | PROCESS FOR INTENTIONAL DETERIORATION OF THE CONTENTS OF AN OPTICAL RECORDING MEDIUM - 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/SiO | 10-23-2008 |
20080267048 | Irreversible Optical Recording Medium by Formation of Bubbles Having a Height Limited by the Gas Source Generating Them - 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. | 10-30-2008 |
20080273447 | SUPER-RESOLUTION OPTICAL RECORDING MEDIUM - The invention relates to the field of optical information recording. According to the invention, an optical storage structure is proposed comprising a substrate equipped with physical marks whose geometrical configuration defines the recorded information, a superposition of three layers on top of the substrate marks, and a transparent protective layer on top of this superposition, the superposition comprising a layer of indium or gallium antimonide inserted between two ZnS/SiO | 11-06-2008 |
20100051894 | DEVICE FOR STORING DATA WITH OPTICAL ADDRESSING - Data storage device, comprising:
| 03-04-2010 |
20100291338 | High-Resolution Optical Information Storage Medium - The invention relates to optical information storage. | 11-18-2010 |
20110075531 | Super-Resolution Optical Disc Reader and Read Method Optimized Through Reflectivity Measurement - The invention relates to the field of the optical recording of information on a medium, such as an optical disc. To read an optical disc in super-resolution mode, a procedure for optimizing the power of the read laser beam is implemented. This optimization is based on the observation that a correlation exists between the power allowing the disc to be read without risk in super-resolution mode and the reflectivity of the sensitive layer containing the information. The reflectivity of the optical disc is measured for several power levels of the read laser, a critical power is determined on the basis of the reflectivity measurements made, and a read power sufficiently above the critical power, so as to be well outside a range of power levels entailing risks, is selected according to the critical power. | 03-31-2011 |
20110101211 | DEVICE FOR TRAPPING PARTICLES - A device for trapping particles contained in a liquid (L) placed in a tank, characterized in that it comprises a substrate that is transparent at a working wavelength, a thin layer of material with non-linear optical properties that are reversible at the working wavelength and which is fixed to a first face of the transparent substrate to form all or part of at least one wall of the tank, a device for forming an optical trap which comprises a laser source which emits a laser beam and means for forming a waist of the laser beam, the laser beam being incident upon that face of the transparent substrate that lies on the opposite side to the first face and the waist of the laser beam being formed in the thin layer, an evanescent electromagnetic field forming at the surface of the thin layer. | 05-05-2011 |
20130164442 | MOLD FOR NANOIMPRINT LITHOGRAPHY - The present invention relates to a method for manufacturing a nanoimprint lithography mold. The method comprises an initial step of depositing, on a mechanical support, a layer of a phase-changing material having a volume variation of at least 2% between a crystalline phase and an amorphous phase. The method is characterized in that it also comprises a step of personalization of the mold, achieved by making the layer of phase-changing material transition locally from its crystalline phase to its amorphous phase in order to form relief patterns therein. | 06-27-2013 |
20140117308 | Electronic Device Containing Nanowire(s), Equipped with a Transition Metal Buffer Layer, Process for Growing at Least One Nanowire, and Process for Manufacturing a Device - The electronic device comprises a substrate ( | 05-01-2014 |
20140120637 | Process for Growing at Least One Nanowire Using a Transition Metal Nitride Layer Obtained in Two Steps - The process for growing at least one semiconductor nanowire ( | 05-01-2014 |
20150053897 | Formation of Nanoparticles of Antimonides Starting from Antimony Trihydride as a Source of Antimony - The present invention relates to a process for preparing nanoparticles of antimonides of metal element(s) in the form of a colloidal solution, using antimony trihydride (SbH | 02-26-2015 |