Patents by Inventor Mathias M. Schubert
Mathias M. Schubert 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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Patent number: 10190978Abstract: A sensor having a substrate is provided in which structures are disposed on a surface of the substrate. The structures can be, e.g., nanostructures. Polarized light is directed toward the sensor, and birefringence of the structures with respect to the light is measured. Target particles that interact with the structures are detected based on changes in the measured birefringence.Type: GrantFiled: August 21, 2017Date of Patent: January 29, 2019Assignee: NUtech VenturesInventors: Mathias M. Schubert, Tino Hofmann, Daniel Schmidt, Patrick H. Dussault, Andrea Holmes, Rebecca Y. Lai
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Patent number: 10101265Abstract: Ellipsometers and polarimeters or the like to investigate analyte containing fluids applied to a substrate-stage having a multiplicity of nano-structures that project non-normal to a surface thereof, including dynamics of interaction therewith, to the end of evaluating and presenting at least partial Jones or Mueller Matricies corresponding to a multiplicity of locations over an imaged area.Type: GrantFiled: August 31, 2015Date of Patent: October 16, 2018Inventors: Mathias M. Schubert, Tino Hofmann, David S. Hage, Erika Pfaunmiller, Craig M. Herzinger, John A. Woollam, Stefan Schoeche
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Patent number: 10073120Abstract: Optical Hall Effect (OHE) method for evaluating such as free charge carrier effective mass, concentration, mobility and free charge carrier type in a sample utilizing a permanent magnet at room temperature.Type: GrantFiled: October 13, 2017Date of Patent: September 11, 2018Assignees: BOARD OF REGENTS FOR THE UNIVERSITY OF NEBRASKA, J.A. WOOLLAM CO., INC.Inventors: Tino Hofmann, Mathias M. Schubert, Stefan Schoeche, Philipp Kuehne, Craig M. Herzinger, John A. Woollam, Gregory K. Pribil, Thomas E. Tiwald, Sean R. Knight
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Patent number: 10048059Abstract: Disclosed are systems and methods that enable determination of uncorrelated thickness of a working electrode and surface region optical constants in settings involving electrochemical processing at a working electrodes in a Piezoelectric Balance system, by simultaneous application of an Ellipsometer system, the working electrode optionally having a multiplicity of nanofibers that are oriented non-normally to a surface of said working electrode. Further disclosed is, simultaneous with said determinations, the monitoring of electrochemical processes at a piezoelectric balance working electrode driven by electrical energy applied between said working electrode and counter electrode.Type: GrantFiled: August 11, 2016Date of Patent: August 14, 2018Assignees: J. A. WOOLLAM CO., INC, THE BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKAInventors: Mathias M. Schubert, Tino Hofmann, John A. Woollam, Rebecca Y. Lai
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Patent number: 10026167Abstract: Anisotropic contrast methodology in combination with use of sample investigating polarized electromagnetic radiation to provide Jones or Mueller Matrix imaging data corresponding to areas on samples.Type: GrantFiled: December 9, 2015Date of Patent: July 17, 2018Assignees: BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA, J. A. WOOLLAM CO., INC.Inventors: Tino Hofmann, Mathias M. Schubert, Tadas Kasputis, Angela K. Pannier, Craig M. Herzinger, John A. Woollam
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Publication number: 20180024055Abstract: A sensor having a substrate is provided in which structures are disposed on a surface of the substrate. The structures can be, e.g., nanostructures. Polarized light is directed toward the sensor, and birefringence of the structures with respect to the light is measured. Target particles that interact with the structures are detected based on changes in the measured birefringence.Type: ApplicationFiled: August 21, 2017Publication date: January 25, 2018Inventors: Mathias M. Schubert, Tino Hofmann, Daniel Schmidt, Patrick H. Dussault, Andrea Holmes, Rebecca Y. Lai
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Patent number: 9851294Abstract: System Stage, and Optical Hall Effect (OHE) system method for evaluating such as free charge carrier effective mass, concentration, mobility and free charge carrier type in a sample utilizing a permanent magnet at room temperature.Type: GrantFiled: June 24, 2015Date of Patent: December 26, 2017Assignees: J.A. WOOLLAM CO., INC., UNIVERSITY OF NEBRASKA BOARD OF REGENTSInventors: Tino Hofmann, Mathias M. Schubert, Stefan Schoeche, Sean Knight, Craig M. Herzinger, John A. Woollam, Greg K. Pribil, Thomas E. Tiwald
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Patent number: 9739710Abstract: A sensor having a substrate is provided in which structures are disposed on a surface of the substrate. The structures can be, e.g., nanostructures. Polarized light is directed toward the sensor, and birefringence of the structures with respect to the light is measured. Target particles that interact with the structures are detected based on changes in the measured birefringence.Type: GrantFiled: October 15, 2013Date of Patent: August 22, 2017Assignee: NUtech VenturesInventors: Mathias M. Schubert, Tino Hofmann, Daniel Schmidt, Patrick H. Dussault, Andrea Holmes, Rebecca Y. Lai
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Publication number: 20150153230Abstract: A dual scanning and FTIR system for application in the Terahertz and broadband blackbody frequency range including sources for providing Thz and broadband blackbody range and electromagnetic radiation, at least one detector of electromagnetic radiation in the THZ and broadband blackbody ranges, and at least one rotating element between the source and detector.Type: ApplicationFiled: March 7, 2013Publication date: June 4, 2015Applicants: REGENTS OF THE UNIVERSITY OF NEBRASKA (50%), J.A.WOLLAM CO. (50%)Inventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Patent number: 9041927Abstract: A dual scanning and FTIR system for application in the Terahertz and broadband blackbody frequency range including sources for providing Thz and broadband blackbody range and electromagnetic radiation, at least one detector of electromagnetic radiation in the THZ and broadband blackbody ranges, and at least one rotating element between the source and detector.Type: GrantFiled: March 7, 2013Date of Patent: May 26, 2015Assignees: J.A. WOOLLAM CO., INC, BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKAInventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Patent number: 8934096Abstract: The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: a source such as a backward wave oscillator; a Smith-Purcell cell; a free electron laser, or an FTIR source and a solid state device; and a detector such as a Golay cell; a bolometer or a solid state detector; and preferably including at least one odd-bounce polarization state image rotating system, and optionally including a polarizer, at least one compensator and/or modulator, in addition to an analyzer.Type: GrantFiled: May 11, 2012Date of Patent: January 13, 2015Assignees: University of Nebraska Board of Regents, J.A. Woollam Co., Inc.Inventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Patent number: 8711599Abstract: A memory device is provided. The memory device includes a plurality of memory cells and a controller to write data to and read data from the memory cells. Each memory cell includes a first semiconductor material having a spontaneous polarization, a resistive ferroelectric material having a switchable spontaneous polarization, and a second semiconductor material having a spontaneous polarization, the resistive ferroelectric material being positioned between and in contact with the first and second semiconductor materials. The memory device can be configured to store energy that can be released by applying a voltage pulse to the memory device.Type: GrantFiled: October 4, 2011Date of Patent: April 29, 2014Assignee: NUtech VenturesInventors: Mathias M. Schubert, Tino Hofmann, Venkata Rao Voora
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Patent number: 8705032Abstract: The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: a source such as a backward wave oscillator; a Smith-Purcell cell; a free electron laser, or an FTIR source and a solid state device; and a detector such as a Golay cell; a bolometer or a solid state detector; and preferably including a polarization state generator comprising: an odd bounce image rotating system and a polarizer, or two polarizers; and optionally including least one compensator and/or modulator, in addition to an analyzer.Type: GrantFiled: March 7, 2013Date of Patent: April 22, 2014Assignee: J.A. Woollam Co., IncInventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Publication number: 20140106980Abstract: A sensor having a substrate is provided in which structures are disposed on a surface of the substrate. The structures can be, e.g., nanostructures. Polarized light is directed toward the sensor, and birefringence of the structures with respect to the light is measured. Target particles that interact with the structures are detected based on changes in the measured birefringence.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Inventors: Mathias M. Schubert, Tino Hofmann, Daniel Schmidt, Patrick H. Dussault, Andrea Holmes, Rebecca Y. Lai
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Publication number: 20140027644Abstract: The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: a source such as a backward wave oscillator; a Smith-Purcell cell; a free electron laser, or an FTIR source and a solid state device; and a detector such as a Golay cell; a bolometer or a solid state detector; and preferably including a polarization state generator comprising: an odd bounce image rotating system and a polarizer, or two polarizers; and optionally including least one compensator and/or modulator, in addition to an analyzer.Type: ApplicationFiled: March 7, 2013Publication date: January 30, 2014Applicants: REGENTS OF THE UNIVERSITY OF NEBRASKA (50%), J.A. WOOLLAM CO. (50%)Inventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Patent number: 8507860Abstract: A tunable terahertz resonator includes a semiconductor substrate and a metal layer contacting a surface of the semiconductor substrate. A depletion layer is formed in the semiconductor substrate near an interface between the metal layer and the semiconductor substrate. A chiral nanostructure is coupled to the substrate or the metal layer, the chiral nanostructure including a conducting or semiconducting material and having an inductance. A bias circuit applies a bias voltage across the metal layer and the semiconductor substrate to control a capacitance of a tunable capacitor that includes the depletion layer. The chiral nanostructure and the tunable capacitor form a tunable resonant circuit. The tunable terahertz resonator can be used in a terahertz radiation emitter or receiver.Type: GrantFiled: May 20, 2010Date of Patent: August 13, 2013Assignee: NUtech VenturesInventors: Eva Schubert, Mathias M. Schubert, Tino Hofmann
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Patent number: 8488119Abstract: A method of applying an ellipsometer or polarimeter system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz; wherein the ellipsometer or polarimeter system includes a source such as a backward wave oscillator, a Smith-Purcell cell, a free electron laser, an FTIR source or a solid state device; and a detector such as a Golay cell a bolometer or a solid state detector; and preferably includes at least one odd-bounce polarization state image rotating system and a polarizer, and at least one compensator and/or modulator, in addition to an analyzer.Type: GrantFiled: June 14, 2010Date of Patent: July 16, 2013Assignees: J.A. Woollam Co., Inc., University of Nebraska Board of RegentsInventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Patent number: 8441635Abstract: A mass sensor is provided for determining the mass of small objects. The mass sensor has a plurality of nanostructures attached to a substrate. The nanostructures and the substrate are irradiated with an electromagnetic wave to determine a first mechanical-electromagnetic resonant frequency of the mass sensor. After a particle is attached to the nanostructures, the substrate and the nanostructures to which the particle is attached are irradiated with an electromagnetic wave to determine a second mechanical-electromagnetic resonant frequency of the mass sensor. A mass of the particle is determined based on a difference between the first and second mechanical-electromagnetic resonant frequencies.Type: GrantFiled: March 23, 2010Date of Patent: May 14, 2013Assignee: NUtech VenturesInventors: Mathias M. Schubert, Eva Schubert, Tino Hofmann, Daniel Schmidt
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Patent number: 8416408Abstract: The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: a source such as a backward wave oscillator; a Smith-Purcell cell; a free electron laser, or an FTIR source and a solid state device; and a detector such as a Golay cell; a bolometer or a solid state detector; and preferably including a polarization state generator comprising: an odd bounce image rotating system and a polarizer, or two polarizers; and optionally including least one compensator and/or modulator, in addition to an analyzer.Type: GrantFiled: June 11, 2010Date of Patent: April 9, 2013Assignees: J.A. Woollam Co., Inc., Board of Regents of the University of NebraskaInventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam
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Publication number: 20120261580Abstract: The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: a source such as a backward wave oscillator; a Smith-Purcell cell; a free electron laser, or an FTIR source and a solid state device; and a detector such as a Golay cell; a bolometer or a solid state detector; and preferably including at least one odd-bounce polarization state image rotating system, and optionally including a polarizer, at least one compensator and/or modulator, in addition to an analyzer.Type: ApplicationFiled: May 11, 2012Publication date: October 18, 2012Inventors: Craig M. Herzinger, Mathias M. Schubert, Tino Hofmann, Martin M. Liphardt, John A. Woollam