Patents by Inventor Marcos Dantus
Marcos Dantus 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: 20240162674Abstract: A laser system employs a laser, a pulse shaper, and a controller configured to measure phase variations on pre-compressed laser pulses. In another aspect, a laser apparatus and method include programmed software instructions which measure phase variations of ultrafast laser pulses. A further aspect of the present system and method includes a laser, an active pulse shaper, and a controller which measure and/or correct distortions of laser pulses with ?/2 scanning.Type: ApplicationFiled: March 3, 2022Publication date: May 16, 2024Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos DANTUS, Jacob Anthony STAMM, Jorge Guillermo BENEL MOGROVEJO
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Publication number: 20230204431Abstract: A laser system and method include a self-referencing shaper. A self-referencing pulse shaper is provided in an embodiment. Another aspect of a laser system includes at least one beam splitter splitting a reference beam from a working beam and a test beam, a delay optic delaying a reference laser beam, an active shaper, an interferometer, and a programmable controller. In another aspect, a method includes splitting an input laser pulse into a reference pulse and a shaping pulse, controlling phase and amplitude of the shaping pulse with an adjustable pulse shaper, creating an optical delay of the reference pulse, comparing a test pulse and the reference pulse after the controlling and delay, the laser system characterizing the input laser pulse and monitoring the laser system's own dispersion in a self-referenced manner, and correcting an output working laser pulse by adjusting the pulse shaper based on the comparing step.Type: ApplicationFiled: December 22, 2022Publication date: June 29, 2023Applicant: Board of Trustees of Michigan State UniversityInventor: Marcos DANTUS
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Publication number: 20230062860Abstract: A laser activated luminescence system is provided. Another aspect pertains to a system employing a plasma assisted vapor deposition reactor which creates diamond layers on a substrate, in combination with a laser system to at least photoactivate and anneal the diamond layers. Yet another aspect of the present system uses a laser to assist with placement of color centers, such as nitrogen vacancy centers, in diamond. The present method uses lasers to manufacture more than two activated nitrogen vacancy center nodes in a diamond substrate, with nanometer spatial resolution and at a predetermined depth.Type: ApplicationFiled: October 26, 2022Publication date: March 2, 2023Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos DANTUS, Timothy A. GROTJOHN
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Patent number: 11502473Abstract: A laser apparatus includes an optic dispersion compensator. In another aspect, an optic (40, 45) uses phase wrapping to compress or stretch a laser pulse. A further aspect includes an apparatus and method for binary-phase compression of stretched laser pulses. In yet another aspect, a single monolithic transmissive or reflective optic (40, 45) provides compression or stretching of a laser pulse using a sinusoidal pattern for introducing binary steps. Another aspect provides a stretching or compressing optic (40, 45) for retarding a phase of multiple frequency regions of a laser pulse by a factor of 2? or less. Still another aspect employs a volume grating or multi-layer mirror including phase wrapping to obtain discontinuous phase jumps in a laser pulse compressor (45) or stretcher (40). Methods of using or making the laser apparatus are also provided.Type: GrantFiled: August 29, 2018Date of Patent: November 15, 2022Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Patent number: 11385098Abstract: A system for determining a characteristic of a laser includes a collection housing receiving a laser beam comprising a first pulse, a second pulse and a time period between the first pulse and the second pulse. A photon counting detector receives photons from the laser beam disposed to generate photon signals from the laser beam and generating a start signal. A fast diode generates a stop signal to provide a time reference of counted photons ns. A controller is coupled to the photon counting detector and the fast diode. The controller counts photons from the photon counting detector occurring during the time period between the first and second pulse and generates a first output signal corresponding to a power during the time period between the first pulse and the second pulse.Type: GrantFiled: January 21, 2021Date of Patent: July 12, 2022Assignee: Board of Trustees of Michigan State UniversityInventor: Marcos Dantus
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Patent number: 11274982Abstract: The disclosure relates to materials and articles that provide an irreversible history of compression forces and torques experienced by the materials and articles. The disclosure relates more particularly to an multiple impact level detection assembly as well as related articles and methods. The multiple impact level detection assembly provides distinct impact patterns depending on the impact force and direction (for torqueing motions) received by the detection assembly. The detection assembly can be incorporated into a variety of articles and used in a variety of settings, for example to monitor personal safety in a protective garment such as a helmet. The detection assembly incorporates an impact detection medium (e.g., a plurality of microcapsules with an indicator therein), which can serve as an irreversible means for detecting impact on the assembly via a relief substrate incorporated into the assembly.Type: GrantFiled: August 21, 2019Date of Patent: March 15, 2022Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Marcos Dantus, Gary J. Blanchard, D. J. Osborn, III, Elan Dantus, Sheryl Blanchard, Evan Blanchard
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Publication number: 20210255148Abstract: A laser system for blood assessment is provided. Another aspect of a laser system includes a container within which is blood, a laser operable to emit a laser beam at the container to vibrate the blood, a detector operable to detect a vibrational characteristic of the blood, a controller connected to the detector operable to automatically determine a characteristic of the blood based at least in part on the vibrational characteristic detected by the detector, and a display operable to indicate a determination result from the controller. Another aspect of the present blood or tissue assessment laser system includes a laser, a power supply, a detector, a controller and an electronic display, all contained within or coupled to a handheld and portable housing.Type: ApplicationFiled: August 29, 2019Publication date: August 19, 2021Applicant: Board of Trustees of Michigan State UniversityInventor: Marcos DANTUS
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Publication number: 20210239523Abstract: A system for determining a characteristic of a laser includes a collection housing receiving a laser beam comprising a first pulse, a second pulse and a time period between the first pulse and the second pulse. A photon counting detector receives photons from the laser beam disposed to generate photon signals from the laser beam and generating a start signal. A fast diode generates a stop signal to provide a time reference of counted photons ns. A controller is coupled to the photon counting detector and the fast diode. The controller counts photons from the photon counting detector occurring during the time period between the first and second pulse and generates a first output signal corresponding to a power during the time period between the first pulse and the second pulse.Type: ApplicationFiled: January 21, 2021Publication date: August 5, 2021Applicant: Board of Trustees of Michigan State UniversityInventor: Marcos DANTUS
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Patent number: 10971881Abstract: A laser pulse includes a flat top shape. Another aspects provides a method and system for creating laser pulse amplification with a flat top and/or square shape, by only using phase modulation. In yet another aspect, a method and system create a flat top and/or square-shaped laser pulse in a reversible manner such that the stretched spectrum can be recompressed to their original duration with essentially no loss of pulse energy. A further aspect includes a method of making a fixed optic capable to creating flat top or square pulse amplification.Type: GrantFiled: March 27, 2018Date of Patent: April 6, 2021Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Publication number: 20200212643Abstract: A laser apparatus includes an optic dispersion compensator. In another aspect, an optic (40, 45) uses phase wrapping to compress or stretch a laser pulse. A further aspect includes an apparatus and method for binary-phase compression of stretched laser pulses. In yet another aspect, a single monolithic transmissive or reflective optic (40, 45) provides compression or stretching of a laser pulse using a sinusoidal pattern for introducing binary steps. Another aspect provides a stretching or compressing optic (40, 45) for retarding a phase of multiple frequency regions of a laser pulse by a factor of 2? or less. Still another aspect employs a volume grating or multi-layer mirror including phase wrapping to obtain discontinuous phase jumps in a laser pulse compressor (45) or stretcher (40). Methods of using or making the laser apparatus are also provided.Type: ApplicationFiled: August 29, 2018Publication date: July 2, 2020Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos DANTUS, Vadim LOZOVOY
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Patent number: 10656062Abstract: The disclosure relates to an irreversible dosimetric shock-detection substrate as well as related articles and methods. The shock-detection substrate incorporates a plurality of microcapsules serving as an irreversible means for detecting impact on the substrate. A shock above a characteristic threshold level experienced by the substrate induces an irreversible detectable change associated with the microcapsules upon shock-induced rupture. The irreversible detectable change provides a tamper-proof and non-electronic means for detecting a shock or impact. The shock-detection substrates can be incorporated into a variety of articles and used in a variety of settings, for example to monitor personal safety, to monitor article integrity, to monitor the end of the useful life of the shock-detection substrate itself, or in any other setting where it is desirable to irreversibly detect and/or localize a shock event.Type: GrantFiled: January 17, 2017Date of Patent: May 19, 2020Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Marcos Dantus, Gary J. Blanchard, Sheryl Blanchard
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Patent number: 10598682Abstract: The superposition of Laguerre-Gaussian guided into and scattered by a particle in a rotated fluid allows the detection of the rotational of the fluid. The presented system allows for virtually real-time determination of vorticity characterization in a fluid. The system allows the direct measurements of fluid flow vorticity using a spatially shaped beam with a superposition of Laguerre-Gaussian modes that reports on the rotational Doppler shift from microparticles intersecting the beam focus.Type: GrantFiled: February 10, 2017Date of Patent: March 24, 2020Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Manoochehr M. Koochesfahani, Shahram Pouya, Anton G. Ryabtsev, Alireza Safaripour Tabalvandani
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Publication number: 20200041367Abstract: The disclosure relates to materials and articles that provide an irreversible history of compression forces and torques experienced by the materials and articles. The disclosure relates more particularly to an multiple impact level detection assembly as well as related articles and methods. The multiple impact level detection assembly provides distinct impact patterns depending on the impact force and direction (for torqueing motions) received by the detection assembly. The detection assembly can be incorporated into a variety of articles and used in a variety of settings, for example to monitor personal safety in a protective garment such as a helmet. The detection assembly incorporates an impact detection medium (e.g., a plurality of microcapsules with an indicator therein), which can serve as an irreversible means for detecting impact on the assembly via a relief substrate incorporated into the assembly.Type: ApplicationFiled: August 21, 2019Publication date: February 6, 2020Inventors: Marcos Dantus, Gary J. Blanchard, D. J. Osborn, III, Elan Dantus, Sheryl Blanchard, Evan Blanchard
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Patent number: 10444100Abstract: The disclosure relates to materials and articles that provide an irreversible history of compression forces and torques experienced by the materials and articles. The disclosure relates more particularly to an multiple impact level detection assembly as well as related articles and methods. The multiple impact level detection assembly provides distinct impact patterns depending on the impact force and direction (for torqueing motions) received by the detection assembly. The detection assembly can be incorporated into a variety of articles and used in a variety of settings, for example to monitor personal safety in a protective garment such as a helmet. The detection assembly incorporates an impact detection medium (e.g., a plurality of microcapsules with an indicator therein), which can serve as an irreversible means for detecting impact on the assembly via a relief substrate incorporated into the assembly.Type: GrantFiled: May 26, 2016Date of Patent: October 15, 2019Assignee: BOARD OF TRUSTEES MICHIGAN STATE UNIVERSITYInventors: Marcos Dantus, Gary J. Blanchard, D. J. Osborn, III, Elan Dantus, Sheryl Blanchard, Evan Blanchard
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Patent number: 10267739Abstract: A laser system and method employing stimulated Raman scattering using a main laser pulse and a delayed replica reference pulse are provided. A further aspect calculates stimulated Raman loss and stimulated Raman gain from a reflected laser light scatter collected from a fabric or paper specimen. In another aspect, a laser system receives a low energy portion of a spectrum of main and reference laser pulses with a first photodetector, receives a higher energy portion of the spectrum of the main and reference pulses with a second photodetector, and uses a controller to determine a Raman active phonon transfer of energy manifested as an increase in the reflected laser scatter in a lower energy portion of the spectrum and a decrease in a higher energy portion of the spectrum. In yet another aspect, the controller automatically determines if a hazardous particle or substance such as an explosive, is present on a specimen.Type: GrantFiled: July 31, 2014Date of Patent: April 23, 2019Assignee: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Marshall Thomas Bremer
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Patent number: 10130511Abstract: An adaptive laser system for ophthalmic use is provided. In another aspect, a relatively inexpensive laser is employed. In another aspect of the present system, non-linear optical imaging uses multiphoton fluorescences and/or second harmonic generation, to create three-dimensional mapping of a portion of the eye in combination with automated feedback to assist with a surgical operation. In a further aspect of the present system, the patient interface uses laser induced markings or indicia to aid in focusing and/or calibration. Still another aspect employs temporal focusing of the laser beam pulse.Type: GrantFiled: September 24, 2013Date of Patent: November 20, 2018Assignee: Board of Trustees of Michigan State UniversityInventor: Marcos Dantus
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Publication number: 20180267072Abstract: The superposition of Laguerre-Gaussian guided into and scattered by a particle in a rotated fluid allows the detection of the rotational of the fluid. The presented system allows for virtually real-time determination of vorticity characterization in a fluid. The system allows the direct measurements of fluid flow vorticity using a spatially shaped beam with a superposition of Laguerre-Gaussian modes that reports on the rotational Doppler shift from microparticles intersecting the beam focus.Type: ApplicationFiled: February 10, 2017Publication date: September 20, 2018Applicant: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: MARCOS DANTUS, MANOOCHEHR M. KOOCHESFAHANI, SHAHRAM POUYA, ANTON G. RYABTSEV, ALIREZA SAFARIPOUR TABALVANDANI
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Publication number: 20180219346Abstract: A laser pulse includes a flat top shape. Another aspects provides a method and system for creating laser pulse amplification with a flat top and/or square shape, by only using phase modulation. In yet another aspect, a method and system create a flat top and/or square-shaped laser pulse in a reversible manner such that the stretched spectrum can be recompressed to their original duration with essentially no loss of pulse energy. A further aspect includes a method of making a fixed optic capable to creating flat top or square pulse amplification.Type: ApplicationFiled: March 27, 2018Publication date: August 2, 2018Applicant: Board of Trustees of Michigan State UniversityInventors: Marcos Dantus, Vadim Lozovoy
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Publication number: 20170122855Abstract: The disclosure relates to an irreversible dosimetric shock-detection substrate as well as related articles and methods. The shock-detection substrate incorporates a plurality of microcapsules serving as an irreversible means for detecting impact on the substrate. A shock above a characteristic threshold level experienced by the substrate induces an irreversible detectable change associated with the microcapsules upon shock-induced rupture. The irreversible detectable change provides a tamper-proof and non-electronic means for detecting a shock or impact. The shock-detection substrates can be incorporated into a variety of articles and used in a variety of settings, for example to monitor personal safety, to monitor article integrity, to monitor the end of the useful life of the shock-detection substrate itself, or in any other setting where it is desirable to irreversibly detect and/or localize a shock event.Type: ApplicationFiled: January 17, 2017Publication date: May 4, 2017Inventors: Marcos Dantus, Gary J. Blanchard, Sheryl Blanchard
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Publication number: 20170089779Abstract: The disclosure relates to materials and articles that provide an irreversible history of compression forces and torques experienced by the materials and articles. The disclosure relates more particularly to an multiple impact level detection assembly as well as related articles and methods. The multiple impact level detection assembly provides distinct impact patterns depending on the impact force and direction (for torqueing motions) received by the detection assembly. The detection assembly can be incorporated into a variety of articles and used in a variety of settings, for example to monitor personal safety in a protective garment such as a helmet. The detection assembly incorporates an impact detection medium (e.g., a plurality of microcapsules with an indicator therein), which can serve as an irreversible means for detecting impact on the assembly via a relief substrate incorporated into the assembly.Type: ApplicationFiled: May 26, 2016Publication date: March 30, 2017Inventors: Marcos Dantus, Gary J. Blanchard, D. J. Osborn, III, Elan Dantus, Sheryl Blanchard, Evan Blanchard