Patents by Inventor Roberto Osellame
Roberto Osellame 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).
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Publication number: 20230273278Abstract: Provided is an atomic vapor cell, for atomic or molecular spectroscopy, optical pumping, and/or spin-based atomic sensing, that includes a host substrate and defined there within a buried or non-buried chamber laser written in the host substrate without the need of a mask or photoresist, with either planar or three-dimensional geometry, and intended to contain an atomic vapor. Also provided are an integrated atomic/photonic device and an apparatus, in both cases including the presently disclosed atomic vapor cell, and a method for fabricating the presently disclosed atomic vapor cell.Type: ApplicationFiled: February 16, 2023Publication date: August 31, 2023Inventors: Morgan Mitchell, Vito Giovanni Lucivero, Roberto Osellame, Giacomo Corrielli, Andrea Zanoni
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Publication number: 20230213696Abstract: The application concerns an optical device including: a primary fan-out waveguide; at least one secondary fan-out waveguide; a fan-out optical coupler for coupling a light beam between the primary fan-out waveguide and the secondary fan-out waveguide; and at least one bus waveguide associated with the at least one secondary fan-out waveguide and different from each secondary fan-out waveguide; wherein a reflecting and coupling structure connecting the secondary fan-out waveguide and the bus waveguide.Type: ApplicationFiled: June 18, 2021Publication date: July 6, 2023Inventors: Jonas ZEUNER, Chiara GREGANTI, Francesco PELLEGATTA, Ioannis PITSIOS, Roberto OSELLAME
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Publication number: 20230020133Abstract: An optical device for controlling light from an external light source including: at least a first and a second waveguide for guiding a light beam emitted from the external light source; and at least a first beam shaping structure with a first light emitting area for emitting a light beam and a second beam shaping structure with a second light emitting area for emitting a light beam, wherein the first waveguide guides the light beam emitted from the external light source to the first beam shaping structure and the second waveguide guides the light beam emitted from the external light source to the second beam shaping structure; wherein the first and the second beam shaping structure-are each configured such that the uniformity of the radiant density profile of a light beam emitted from the respective light emitting area of the respective beam shaping structure is higher than that of the light beam guided to the respective beam shaping structure by the respective waveguide.Type: ApplicationFiled: December 4, 2020Publication date: January 19, 2023Inventors: Jonas ZEUNER, Chiara GREGANTI, Roberto OSELLAME
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Publication number: 20220177837Abstract: A method for culturing cells on a substrate capable of inducing pluripotency is provided. The method includes plating cells on a nichoid-type substrate, allowing cultured cells to proliferate for a certain period of time, detaching cells from the nichoid-type substrate, and, once cells have been detached, culturing cells in suspension or under adhesion.Type: ApplicationFiled: March 9, 2020Publication date: June 9, 2022Inventors: Stefania CARELLI, Manuela Teresa RAIMONDI, Anna Maria DI GIULIO, Toniella GIALLONGO, Alfredo GORIO, Giulio Nicola CERULLO, Roberto OSELLAME
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Patent number: 11273023Abstract: An implantable medical device obtained by means of two-photon laser polymerisation of a resin to form a three-dimensional matrix, wherein: said three-dimensional matrix comprises a number of levels distributed in height; and said three-dimensional matrix comprises reference means designed to uniquely identify the height of each level from a pre-set reference, by means of a multi-photon fluorescence-excitation microscope; said implantable medical device being characterised in that said reference means comprise a solid having a cross section that varies with height.Type: GrantFiled: December 18, 2018Date of Patent: March 15, 2022Assignees: POLITECNICO DI MILANO, UNIVERSITA' DEGLI STUDI DI MILANO-BICOCCA, CONSIGLIO NAZIONALE DELLE RICERCHEInventors: Manuela Teresa Raimondi, Giulio Cerullo, Claudio Conci, Tommaso Zandrini, Roberto Osellame, Giuseppe Chirico
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Patent number: 11027045Abstract: The present invention relates to a supermatrix of synthetic niches comprising at least two matrices of niches wherein each matrix comprises n×m niches and wherein the distance (d) between a matrix and the other is greater than zero and wherein in each matrix every synthetic niche has one or more walls in common with the others synthetic niches of the matrix. A support for the culture of cells that includes at least one supermatrix and the use of said supermatrix or support for the in vitro culture of cells, in particular stem cells, or for the in vivo implant in a subject in order to promote tissue or organ regeneration through cell repopulation are also within the scope of the present invention.Type: GrantFiled: August 31, 2016Date of Patent: June 8, 2021Assignees: POLITECNICO DI MILANO, CONSIGLIO NAZIONALE DELLE RICERCHE, FONDAZIONE CARIPLOInventors: Manuela Teresa Raimondi, Giulio Cerullo, Roberto Osellame, Andrea Remuzzi
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Publication number: 20200337824Abstract: An implantable medical device obtained by means of two-photon laser polymerisation of a resin to form a three-dimensional matrix, wherein: said three-dimensional matrix comprises a number of levels distributed in height; and said three-dimensional matrix comprises reference means designed to uniquely identify the height of each level from a pre-set reference, by means of a multi-photon fluorescence-excitation microscope; said implantable medical device being characterised in that said reference means comprise a solid having a cross section that varies with height.Type: ApplicationFiled: December 18, 2018Publication date: October 29, 2020Inventors: Manuela Teresa Raimondi, Giulio Cerullo, Claudio Conci, Tommaso Zandrini, Roberto Osellame, Giuseppe Chirico
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Publication number: 20200046881Abstract: The present invention relates to a supermatrix of synthetic niches comprising at least two matrices of niches wherein each matrix comprises n×m niches and wherein the distance (d) between a matrix and the other is greater than zero and wherein in each matrix every synthetic niche has one or more walls in common with the others synthetic niches of the matrix. A support for the culture of cells that includes at least one supermatrix and the use of said supermatrix or support for the in vitro culture of cells, in particular stem cells, or for the in vivo implant in a subject in order to promote tissue or organ regeneration through cell repopulation are also within the scope of the present invention.Type: ApplicationFiled: August 31, 2016Publication date: February 13, 2020Inventors: Manuela Teresa RAIMONDI, Giulio CERULLO, Roberto OSELLAME, Andrea REMUZZI
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Patent number: 10520425Abstract: An integrated optofluidic device to illuminate, along an irradiation direction, a fluidic sample containing an object to be analysed, the device comprising: a substrate comprising an entry surface and being made of a material transparent to a light beam incident through the entry surface along the irradiation direction; a microfluidic channel formed in the substrate and having a channel portion intercepting the irradiation direction and extending along a longitudinal axis transverse to the irradiation direction, the microfluidic channel comprising a first flow inlet port for loading a fluidic sample therein, and an elongated lens cavity for an optofluidic cylindrical lens, the cavity being formed in the substrate and being arranged along the beam irradiation direction between the entry surface and the microfluidic channel, wherein the lens cavity is in fluid communication with a lens inlet port for loading a lens fluid.Type: GrantFiled: September 27, 2016Date of Patent: December 31, 2019Assignees: POLITECNICO DI MILANO, CONSIGLIO NAZIONALE DELLE RICERCHE-CNRInventors: Andrea Bassi, Petra Paiè, Roberto Osellame, Francesca Bragheri
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Publication number: 20180275045Abstract: An integrated optofluidic device to illuminate, along an irradiation direction, a fluidic sample containing an object to be analysed, the device comprising: a substrate comprising an entry surface and being made of a material transparent to a light beam incident through the entry surface along the irradiation direction; a microfluidic channel formed in the substrate and having a channel portion intercepting the irradiation direction and extending along a longitudinal axis transverse to the irradiation direction, the microfluidic channel comprising a first flow inlet port for loading a fluidic sample therein, and an elongated lens cavity for an optofluidic cylindrical lens, the cavity being formed in the substrate and being arranged along the beam irradiation direction between the entry surface and the microfluidic channel, wherein the lens cavity is in fluid communication with a lens inlet port for loading a lens fluid.Type: ApplicationFiled: September 27, 2016Publication date: September 27, 2018Applicants: POLITECNICO DI MILANO, CONSIGLIO NAZIONALE DELLE RICERCHEInventors: Andrea Bassi, Petra Paiè, Roberto Osellame, Francesca Bragheri
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Patent number: 9488778Abstract: A method for realizing an optical waveguide in a substrate by means of a femtosecond laser system, the waveguide including a birefringence axis tilted by a predetermined angle for at least a segment, is disclosed. The method includes preparing a substrate including a free surface, focusing a femtosecond laser beam into the substrate, in order to induce a refractive index modification of a volume of such substrate around the focal region. The method further includes varying a propagation direction of the femtosecond laser beam to reach a propagation direction describing a predetermined non-vanishing angle with respect to the normal to the free surface of the substrate, and translating the focal region with respect to the substrate, in order to generate the waveguide segment.Type: GrantFiled: April 18, 2014Date of Patent: November 8, 2016Assignees: CONSIGLIO NAZIONALE DELLE RICERCHE, SAPIENZA UNIVERSITA' DI ROMAInventors: Roberto Osellame, Andrea Crespi, Giacomo Corrielli, Fabio Sciarrino
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Publication number: 20160054522Abstract: A method for realizing an optical waveguide in a substrate by means of a femtosecond laser system, the waveguide including a birefringence axis tilted by a predetermined angle for at least a segment, is disclosed. The method includes preparing a substrate including a free surface, focusing a femtosecond laser beam into the substrate, in order to induce a refractive index modification of a volume of such substrate around the focal region. The method further includes varying a propagation direction of the femtosecond laser beam to reach a propagation direction describing a predetermined non-vanishing angle with respect to the normal to the free surface of the substrate, and translating the focal region with respect to the substrate, in order to generate the waveguide segment.Type: ApplicationFiled: April 18, 2014Publication date: February 25, 2016Applicants: SAPIENZA UNIVERSITA' DI ROMA, CONSIGLIO NAZIONALE DELLE RICERCHEInventors: Roberto OSELLAME, Andrea CRESPI, Giacomo CORRIELLI, Fabio SCIARRINO
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Publication number: 20140126030Abstract: A quantum logic gate for qubits, suitable for receiving as inputs at least two polarization-encoded qubits, includes at least one partially polarizing beam splitter (PPBS), the beam splitter comprising a first waveguide and a second waveguide which are constructed in integrated optics, the first and second waveguides having a refractive index contrast of between 0.1% and 6% and a birefringence of between 10?6 and 6*10?5.Type: ApplicationFiled: May 3, 2012Publication date: May 8, 2014Applicants: UNIVERSITA' DEGLI STUDI DI ROMA LA SAPIENZA, CONSIGLIO NAZIONALE DELLE RICERCHEInventors: Andrea Crespi, Paolo Mataloni, Roberta Ramponi, Linda Sansoni, Fabio Sciarrino, Giuseppe Vallone, Roberto Osellame
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Patent number: 7215856Abstract: A reconfigurable optical device for wavelength-division multiplexing networks, comprising two waveguides (A, B) parallel to each other, with two-dimensional confinement, coupled by a bi-directional coupler (C), suitable to selectively drop one and only one of the channels composing the Wavelength-Division multiplexing signal (WDM); the device is reconfigurable as, by appropriately varying the wavelength of the combined pumping beam inside a first waveguide (A), any channel forming the WDM signal can be dropped.Type: GrantFiled: March 13, 2002Date of Patent: May 8, 2007Assignee: Politecnico Di MilanoInventors: Roberto Osellame, Roberta Ramponi, Marco Marangoni
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Publication number: 20050047712Abstract: A reconfigurable optical device for wavelength-division multiplexing networks, comprising two waveguides (A, B) parallel to each other, with two-dimensional confinement, coupled by a bi-directional coupler (C), suitable to selectively drop one and only one of the channels composing the Wavelength-Division multiplexing signal (WDM); the device is reconfigurable as, by appropriately varying the wavelength of the combined pumping beam inside a first waveguide (A), any channel forming the WDM signal can be dropped.Type: ApplicationFiled: March 13, 2002Publication date: March 3, 2005Inventors: Roberto Osellame, Roberta Ramponi, Marco Marangoni