Patents by Inventor Georg A. Raithel
Georg A. Raithel 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: 11774482Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.Type: GrantFiled: June 13, 2022Date of Patent: October 3, 2023Assignee: Rydberg Technologies Inc.Inventors: David A. Anderson, Georg A. Raithel, Eric G. Paradis, Rachel E. Sapiro
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Publication number: 20230243881Abstract: A method for atom-based closed-loop control includes exciting atoms of a gas into one or more Rydberg states, applying one or more signal processing functions to the one or more Rydberg states, and regulating a characteristic of the applied one or more signal processing functions based on, at least in part, a response of the one or more Rydberg states to the one or more signal processing functions. A system for internal quantum-state-space interferometry includes an atomic receiver, an interferometric pathway, and a detector. The interferometer includes an atomic vapor with first atomic states and second atomic states. The interferometric pathway from RF phases between the first and second atomic states is closed by a quantum-state-space. The detector is configured to detect a readout of an interferometric signal. Embodiments include atom-based automatic level control, baseband processors, phase-locked loops, voltage transducers, raster RF imagers and waveform analyzers.Type: ApplicationFiled: February 23, 2023Publication date: August 3, 2023Inventors: David A. ANDERSON, Georg RAITHEL
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Patent number: 11592469Abstract: A method for atom-based closed-loop control includes exciting atoms of a gas into one or more Rydberg states, applying one or more signal processing functions to the one or more Rydberg states, and regulating a characteristic of the applied one or more signal processing functions based on, at least in part, a response of the one or more Rydberg states to the one or more signal processing functions. A system for internal quantum-state-space interferometry includes an atomic receiver, an interferometric pathway, and a detector. The interferometer includes an atomic vapor with first atomic states and second atomic states. The interferometric pathway from RF phases between the first and second atomic states is closed by a quantum-state-space. The detector is configured to detect a readout of an interferometric signal. Embodiments include atom-based automatic level control, baseband processors, phase-locked loops, voltage transducers, raster RF imagers and waveform analyzers.Type: GrantFiled: May 28, 2021Date of Patent: February 28, 2023Assignee: Rydberg Technologies Inc.Inventors: David A. Anderson, Georg Raithel
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Publication number: 20230056032Abstract: A method is presented for measuring motion of a moving body using an atom interferometer. The method includes: positioning at least one atom in a cavity of the atom interferometer, where the atom interferometer is attached to the moving body; splitting the at least one atom into a pair of wave-function components; guiding the pair of wave-function components along respective paths in the cavity such that the pair of wave-function components are confined spatially along the respective paths in all degrees of freedom and without interruption; coherently recombining the pair of wave-function components into the at least one atom; and measuring a property of the at least one atom after the pair of wave-function components have been recombined into the at least one atom, where the property of the at least one atom is indicative of motion of the moving body.Type: ApplicationFiled: August 19, 2022Publication date: February 23, 2023Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Georg A. RAITHEL, Alisher DUSPAYEV
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Publication number: 20220326289Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.Type: ApplicationFiled: June 13, 2022Publication date: October 13, 2022Inventors: David A. Anderson, Georg A. Raithel, Eric G. Paradis, Rachel E. Sapiro
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Publication number: 20220196716Abstract: A method for atom-based closed-loop control includes exciting atoms of a gas into one or more Rydberg states, applying one or more signal processing functions to the one or more Rydberg states, and regulating a characteristic of the applied one or more signal processing functions based on, at least in part, a response of the one or more Rydberg states to the one or more signal processing functions. A system for internal quantum-state-space interferometry includes an atomic receiver, an interferometric pathway, and a detector. The interferometer includes an atomic vapor with first atomic states and second atomic states. The interferometric pathway from RF phases between the first and second atomic states is closed by a quantum-state-space. The detector is configured to detect a readout of an interferometric signal. Embodiments include atom-based automatic level control, baseband processors, phase-locked loops, voltage transducers, raster RF imagers and waveform analyzers.Type: ApplicationFiled: May 28, 2021Publication date: June 23, 2022Inventors: David A. ANDERSON, Georg RAITHEL
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Patent number: 11360135Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.Type: GrantFiled: November 2, 2020Date of Patent: June 14, 2022Assignee: Rydberg Technologies Inc.Inventors: David A. Anderson, Georg A. Raithel, Eric G. Paradis, Rachel E. Sapiro
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Publication number: 20210048465Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.Type: ApplicationFiled: November 2, 2020Publication date: February 18, 2021Inventors: David A. Anderson, Georg A. Raithel, Eric G. Paradis, Rachel E. Sapiro
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Patent number: 10823775Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.Type: GrantFiled: December 17, 2018Date of Patent: November 3, 2020Assignee: Rydberg Technologies Inc.Inventors: David A. Anderson, Georg A. Raithel, Eric G. Paradis, Rachel E. Sapiro
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Publication number: 20190187198Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.Type: ApplicationFiled: December 17, 2018Publication date: June 20, 2019Inventors: David A. Anderson, Georg A. Raithel, Eric G. Paradis, Rachel E. Sapiro
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Patent number: 9970973Abstract: A method is presented for measuring the electric field of electromagnetic radiation using the spectroscopic responses of Rydberg atoms to the electromagnetic radiation field. The method entails implementing quantitative models of the Rydberg atom response to the electromagnetic radiation field to provide predetermined atomic properties or spectra for field amplitudes and or frequencies of interest, spectroscopically measuring the response (spectrum) of Rydberg atoms exposed to an unknown electromagnetic radiation field, and obtaining the electric field amplitude and/or frequency of the unknown electromagnetic radiation by using features extracted from the measured spectrum and comparing them to features in a predetermined spectrum among the set of predetermined spectra.Type: GrantFiled: October 13, 2017Date of Patent: May 15, 2018Assignee: The Regents of The University of MichiganInventors: David A. Anderson, Georg A. Raithel, Nithiwadee Thaicharoen, Stephanie A. Miller, Andrew Schwarzkopf
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Publication number: 20180031620Abstract: A method is presented for measuring the electric field of electromagnetic radiation using the spectroscopic responses of Rydberg atoms to the electromagnetic radiation field. The method entails implementing quantitative models of the Rydberg atom response to the electromagnetic radiation field to provide predetermined atomic properties or spectra for field amplitudes and or frequencies of interest, spectroscopically measuring the response (spectrum) of Rydberg atoms exposed to an unknown electromagnetic radiation field, and obtaining the electric field amplitude and/or frequency of the unknown electromagnetic radiation by using features extracted from the measured spectrum and comparing them to features in a predetermined spectrum among the set of predetermined spectra.Type: ApplicationFiled: October 13, 2017Publication date: February 1, 2018Inventors: David A. ANDERSON, Georg A. RAITHEL, Nithiwadee THAICHAROEN, Stephanie A. MILLER
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Patent number: 9831754Abstract: A miniature mechanical shutter having a chamber, a shutter member having an aperture formed therethrough that is mounted to the chamber to allow translation and rotation about an axis. A pair of cap members are disposed on opposing ends of the shutter member to support the shutter member during the translation and rotation. The shutter further comprising a plurality of magnet members, such that a first of the plurality of magnet members is disposed in a first end of the shutter member, a second of the plurality of magnet members is disposed in a second end of the shutter member opposite the first end, and a third of the plurality of magnets members is disposed external to the chamber. At least one of the plurality of magnet members is responsive to an electrical impulse to translate and/or rotate the shutter member between an opened position and a closed position.Type: GrantFiled: March 12, 2015Date of Patent: November 28, 2017Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Stephanie A. Miller, David A. Anderson, Andrew T. Cadotte, Georg A. Raithel
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Publication number: 20160363617Abstract: A method is presented for measuring the electric field of electromagnetic radiation using the spectroscopic responses of Rydberg atoms to the electromagnetic radiation field. The method entails implementing quantitative models of the Rydberg atom response to the electromagnetic radiation field to provide predetermined atomic properties or spectra for field amplitudes and or frequencies of interest, spectroscopically measuring the response (spectrum) of Rydberg atoms exposed to an unknown electromagnetic radiation field, and obtaining the electric field amplitude and/or frequency of the unknown electromagnetic radiation by using features extracted from the measured spectrum and comparing them to features in a predetermined spectrum among the set of predetermined spectra.Type: ApplicationFiled: June 15, 2016Publication date: December 15, 2016Inventors: David A. ANDERSON, Georg A. RAITHEL, Christopher HOLLOWAY, Joshua GORDON, Andrew SCHWARZKOPF, Nithiwadee THAICHAROEN, Stephanie A. MILLER, Steven JEFFERTS
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Publication number: 20150263595Abstract: A miniature mechanical shutter having a chamber, a shutter member having an aperture formed therethrough that is mounted to the chamber to allow translation and rotation about an axis. A pair of cap members are disposed on opposing ends of the shutter member to support the shutter member during the translation and rotation. The shutter further comprising a plurality of magnet members, such that a first of the plurality of magnet members is disposed in a first end of the shutter member, a second of the plurality of magnet members is disposed in a second end of the shutter member opposite the first end, and a third of the plurality of magnets members is disposed external to the chamber. At least one of the plurality of magnet members is responsive to an electrical impulse to translate and/or rotate the shutter member between an opened position and a closed position.Type: ApplicationFiled: March 12, 2015Publication date: September 17, 2015Inventors: STEPHANIE A. MILLER, David A. Anderson, Andrew T. Cadotte, Georg A. Raithel