Alexei Tchelnokov
Alexei Tchelnokov, Meylan FR
Patent application number | Description | Published |
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20100172615 | Coupling Device with Compensated Birefringence - The invention relates to a coupling device comprising a support substrate; a first layer arranged on the support substrate and comprising first patterns produced within the thickness of said first layer, said first patterns being arranged in parallel and periodic rows; a second layer arranged on the first layer and comprising second patterns passing through the thickness of said second layer, said second patterns being arranged in parallel and periodic rows. The direction of periodicity of the rows of the first patterns is perpendicular to the direction of periodicity of the rows of the second patterns. The rows of the first patterns extend over a distance greater than or equal to the wavelength in the void of the optical wave intended to be coupled. The first patterns have a width less than or equal to a tenth of the wavelength of the optical wave intended to be coupled, and the period of these patterns is between 50 nm and 1 μm. The second patterns are arranged so as to form a periodic diffraction grating. | 07-08-2010 |
20110274399 | STRUCTURE OF A MICRONANOSTRUCTURE OPTICAL WAVE GUIDE FOR CONTROLLING BIREFRINGENCE - The invention relates to a waveguide structure comprising a supporting substrate and a waveguide comprising at least one guide layer having a refractive index n | 11-10-2011 |
20150060904 | SEMICONDUCTING STRUCTURE WITH SWITCHABLE EMISSION ZONES, METHOD OF MANUFACTURING SUCH A STRUCTURE AND SEMICONDUCTING DEVICE COMPRISING SUCH A STRUCTURE - The invention relates to a semiconducting structure intended to emit light, comprising a first semiconducting region ( | 03-05-2015 |
20160093666 | OPTOELECTRONIC DEVICE AND METHOD FOR MANUFACTURING SAME - The invention relates to an optoelectronic device ( | 03-31-2016 |
20160104743 | OPTOELECTRONIC DEVICE AND METHOD FOR MANUFACTURING SAME - The invention relates to an optoelectronic device ( | 04-14-2016 |
Alexei Tchelnokov, Grenoble FR
Patent application number | Description | Published |
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20090040755 | Light-Emitting Device With Chromatic Control - The light-emitting device includes a base substrate and preferably three light-emitting diodes respectively associated with three primary colors and emitting a part of their signal in the direction of the base substrate. The device includes three chromatic photodetectors formed in the base substrate constituting a semiconducting substrate, and each arranged under an associated light-emitting diode. Each chromatic photodetector includes superposed first, second and third layers. The first layer and third layer have a first type of conductivity and the second layer has a second type of conductivity. The device includes a control component connected to the chromatic photodetectors and to the light-emitting diodes to control the global color of the light emitted by the device. | 02-12-2009 |
20090246901 | PROCESS OF MAKING A MICROELECTRONIC LIGHT-EMITTING DEVICE ON SEMI-CONDUCTING NANOWIRE FORMED ON A METALLIC SUBSTRATE - A process of making a microelectronic light-emitting device, including: a) growth on a metallic support of multiple wires based on one or more semi-conducting materials designed to emit radiant light, and b) formation of at least one electrical conducting zone of contact on at least one of the wires. | 10-01-2009 |
20100142580 | LASER DEVICE WITH COUPLED LASER SOURCE AND WAVEGUIDE - Laser device comprising: | 06-10-2010 |
20120251030 | DEVICE FOR COUPLING AN ELECTROMAGNETIC WAVE BETWEEN A WAVEGUIDE AND A SLIT METAL GUIDE, METHOD FOR MANUFACTURING SUCH A DEVICE, AND OPTICAL AND ELECTRIC COUPLER FOR AN OBJECT USING THE OPTICAL COUPLING DEVICE - The device for coupling an electromagnetic wave includes a waveguide and a slit metal guide. The slit metal guide is formed by two metal elements which are coplanar and spaced out from one another so as to form the slit. The slit metal guide is arranged in a plane offset from the plane of the waveguide and partially covers said waveguide, said waveguide and the slit guide being maintained at a distance from one another by a dielectric. | 10-04-2012 |