Patents by Inventor Wilfried RABAUD
Wilfried RABAUD has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9784623Abstract: A bolometric detector of LWIR wavelengths, including: a substrate; a membrane suspended above the substrate by supporting elements; an absorbing element comprising several MIM structures each formed with a lower metal element, an upper metal element specific to each MIM structure and with a dielectric element positioned between the lower and upper metal elements; a thermometric element comprising at least one thermometric material; wherein: the membrane includes the upper metal element, the thermometric material and one portion of the dielectric element of each MIM structure, the upper metal elements of at least two MIM structure have different dimensions relatively to each other in the main plane of the membrane, and the dielectric element of each of the MIM structures includes at least one of the following materials having vibrational modes in the LWIR range: Al2O3, AlN, TiO2.Type: GrantFiled: September 25, 2015Date of Patent: October 10, 2017Assignee: Commissariat à l'énergie atomique et aux énergies alternativesInventors: Ujwol Palanchoke, Salim Boutami, Stephane Pocas, Wilfried Rabaud
-
Patent number: 9376346Abstract: The invention relates to the use of a material having a spinel ferrite/iron monoxide structure as a sensitive material in the form of a thin film for the bolometric detection of infrared radiation, the chemical composition of said structure, excluding doping agents that may be present, having empirical formula (I): (Fe1?zMz)xO, where x is strictly less than 1 and strictly greater than 0.75. The invention also relates to a bolometric device for infrared radiation detection and infrared imaging, comprising at least one sensor provided with a sensitive element in the form of a thin film as defined above.Type: GrantFiled: June 11, 2009Date of Patent: June 28, 2016Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE, UNIVERSITE PAUL SABATIER (TOULOUSE III), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Philippe Tailhades, Lionel Presmanes, Corinne Bonningue, Bruno Mauvernay, Jean-Louis Ouvrier-Buffet, Agnes Arnaud, Wilfried Rabaud
-
Publication number: 20160091371Abstract: A bolometric detector of LWIR wavelengths, including: a substrate; a membrane suspended above the substrate by supporting elements; an absorbing element comprising several MIM structures each formed with a lower metal element, an upper metal element specific to each MIM structure and with a dielectric element positioned between the lower and upper metal elements; a thermometric element comprising at least one thermometric material; wherein: the membrane includes the upper metal element, the thermometric material and one portion of the dielectric element of each MIM structure, the upper metal elements of at least two MIM structure have different dimensions relatively to each other in the main plane of the membrane, and the dielectric element of each of the MIM structures includes at least one of the following materials having vibrational modes in the LWIR range: Al2O3, AlN, TiO2.Type: ApplicationFiled: September 25, 2015Publication date: March 31, 2016Applicant: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Ujwol PALANCHOKE, Salim BOUTAMI, Stephane POCAS, Wilfried RABAUD
-
Patent number: 8895924Abstract: This bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared or terahertz wavelengths comprises a substrate and an array of bolometric micro-plates for detecting said radiation that are suspended above the substrate by support arms. It comprises a metallic membrane located above and around each micro-plate and in which openings are formed; said openings in metallic membrane are periodically located in it along at least one predetermined axis with a period equal to or less than ? n , where ? is a wavelength in the wavelength range that is to be detected and n is the average refraction index of the medium that separates the micro-plate from metallic membrane.Type: GrantFiled: November 15, 2011Date of Patent: November 25, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Geoffroy Dumont, Agnès Arnaud, Salim Boutami, Pierre Imperinetti, Alexandre Mary, Stéphane Pocas, Wilfried Rabaud
-
Patent number: 8816283Abstract: The electromagnetic radiation detection device includes, on a same substrate: at least one active detector of the electromagnetic radiation provided with a first element sensitive to said radiation, at least one reference detector including a second element sensitive to said electromagnetic radiation, and a lid provided with first reflective means reflecting the incident electromagnetic radiation, said lid covering without contact the second sensitive element and defining with the substrate a cavity having the reference detector housed therein. The lid is designed to improve the sensitivity of the detection device.Type: GrantFiled: October 25, 2011Date of Patent: August 26, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Jean-Jacques Yon, Pierre Imperinetti, Alexandre Mary, Wilfried Rabaud
-
Patent number: 8598528Abstract: A bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared wavelengths includes a substrate; an array of bolometric micro-plates for detecting the radiation suspended above the substrate by support arms; and metallic reflectors formed on the substrate underneath the micro-plates to reflect that portion of the radiation which has passed through said micro-plates without being absorbed by the latter. For each micro-plate, a corresponding reflector includes a first part located underneath the micro-plate which extends as a second part not positioned underneath the micro-plate. At least the second part has surface texturing in a repeating pattern for coupling a portion of incident radiation on the second part to a guided wave that propagates towards the first part of the reflector positioned underneath micro-plate.Type: GrantFiled: September 21, 2011Date of Patent: December 3, 2013Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Salim Boutami, Agnès Arnaud, Geoffroy Dumont, Pierre Imperinetti, Alexandre Mary, Stéphane Pocas, Wilfried Rabaud
-
Publication number: 20130240738Abstract: The electromagnetic radiation detection device includes, on a same substrate: at least one active detector of the electromagnetic radiation provided with a first element sensitive to said radiation, at least one reference detector including a second element sensitive to said electromagnetic radiation, and a lid provided with first reflective means reflecting the incident electromagnetic radiation, said lid covering without contact the second sensitive element and defining with the substrate a cavity having the reference detector housed therein. The lid is designed to improve the sensitivity of the detection device.Type: ApplicationFiled: October 25, 2011Publication date: September 19, 2013Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Jean-Jacques Yon, Pierre Imperinetti, Alexandre Mary, Wilfried Rabaud
-
Publication number: 20120153151Abstract: This bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared or terahertz wavelengths comprises a substrate and an array of bolometric micro-plates for detecting said radiation that are suspended above the substrate by support arms. It comprises a metallic membrane located above and around each micro-plate and in which openings are formed; said openings in metallic membrane are periodically located in it along at least one predetermined axis with a period equal to or less than ? n , where ? is a wavelength in the wavelength range that is to be detected and n is the average refraction index of the medium that separates the micro-plate from metallic membrane.Type: ApplicationFiled: November 15, 2011Publication date: June 21, 2012Applicant: Commissariat A L'Energie Atomique Et Aux Energie AlternativesInventors: Geoffroy DUMONT, Agnès ARNAUD, Salim BOUTAMI, Pierre IMPERINETTI, Alexandre MARY, Stéphane POCAS, Wilfried RABAUD
-
Publication number: 20120104258Abstract: A bolometric array detector for detecting electromagnetic radiation in a predetermined range of infrared wavelengths includes a substrate; an array of bolometric micro-plates for detecting the radiation suspended above the substrate by support arms; and metallic reflectors formed on the substrate underneath the micro-plates to reflect that portion of the radiation which has passed through said micro-plates without being absorbed by the latter. For each micro-plate, a corresponding reflector includes a first part located underneath the micro-plate which extends as a second part not positioned underneath the micro-plate. At least the second part has surface texturing in a repeating pattern for coupling a portion of incident radiation on the second part to a guided wave that propagates towards the first part of the reflector positioned underneath micro-plate.Type: ApplicationFiled: September 21, 2011Publication date: May 3, 2012Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Salim BOUTAMI, Agnès ARNAUD, Geoffroy DUMONT, Pierre IMPERINETTI, Alexandre MARY, Stéphane POCAS, Wilfried RABAUD
-
Publication number: 20100065743Abstract: The invention relates to the use of a material having a spinel ferrite/iron monoxide structure as a sensitive material in the form of a thin film for the bolometric detection of infrared radiation, the chemical composition of said structure, excluding doping agents that may be present, having empirical formula (I): (Fe1?zMz)xO, where x is strictly less than 1 and strictly greater than 0.75. The invention also relates to a bolometric device for infrared radiation detection and infrared imaging, comprising at least one sensor provided with a sensitive element in the form of a thin film as defined above.Type: ApplicationFiled: June 11, 2009Publication date: March 18, 2010Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE, UNIVERSITE PAUL SABATIER TOULOUSE III, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Philippe TAILHADES, Lionel PRESMANES, Corinne BONNINGUE, Bruno MAUVERNAY, Jean-Louis OUVRIER-BUFFET, Agnes ARNAUD, Wilfried RABAUD