Patents Assigned to Government of the United States of America, as represented by the Secretary of the Commerce
-
Patent number: 11253347Abstract: A system for conducting inhalation studies includes an inhalation exposure chamber and an aerosol delivery line connected to the inhalation exposure chamber. The aerosol delivery line is configured to produce a bi-directional and symmetrical presentation of aerosol to the inhalation exposure chamber. A laminar flow element is configured to create an ante-chamber where complete and turbulent mixing of the aerosol occurs. A radial exhaust and the laminar flow element enable laminar flow of the aerosol through the inhalation exposure chamber.Type: GrantFiled: February 7, 2017Date of Patent: February 22, 2022Assignees: The Government of the United States, as represented by the Secretary of the Army, Government of the United States of America, as represented by the Secretary of the CommerceInventors: Brett R. Haupt, Matthew E. Staymates, Larry E. Bowen, Mark M. Bailey, Jaime B. Anderson
-
Patent number: 11258415Abstract: A neuromimetic circuit includes: a primary single photon optoelectronic neuron; a synapse in optical communication with the primary single photon optoelectronic neuron; and an axonic waveguide in optical communication with the primary single photon optoelectronic neuron and the synapse such that the axonic waveguide optically interconnects the primary single photon optoelectronic neuron and the synapse.Type: GrantFiled: December 14, 2017Date of Patent: February 22, 2022Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Jeffrey Shainline, Sae Woo Nam, Sonia Buckley
-
Patent number: 11251374Abstract: A nanotube spectrometer array includes: a substrate including block receivers; photodetectors arranged in an array with each photodetector including: a single wall carbon nanotube disposed on the substrate in a block receiver and disposed laterally along the block receiver; a source electrode on the single wall carbon nanotube; a drain electrode on the single wall carbon nanotube, such that the source and drain electrodes are separated from each other by a photoreceiver portion of the single wall carbon nanotube; and a gate electrode disposed on the substrate such that substrate is interposed between the gate electrode and the single wall carbon nanotube. The single wall carbon nanotube in each photodetector is a different chirality so that each photodetector absorbs light with a maximum photon absorptivity at a difference wavelength that is based on the chirality of the single wall carbon nanotube of the photodetector.Type: GrantFiled: October 9, 2020Date of Patent: February 15, 2022Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventor: Ming Zheng
-
Patent number: 11221540Abstract: An optical parametric oscillator for producing idler coherent light and signal coherent light from pump coherent light by balanced parametric dispersion includes: substrate cladding; a microring resonator disposed on the substrate cladding and including: a broadly transparent Kerr nonlinear medium including a annulus with a radius R, a height H, and a width W that provides a balanced parametric dispersion; and that: receives pump coherent light from a waveguide; and produces idler coherent light and signal coherent light from the pump coherent light, the idler coherent light and signal coherent light produced according to the balanced parametric dispersion of the microring resonator; and the waveguide disposed on the substrate cladding in optical communication with the microring resonator and comprising a broadly transparent medium such as silicon nitride and that: receives pump coherent light; and communicates the pump coherent light to the microring resonator for production of the idler coherent light and tType: GrantFiled: September 17, 2020Date of Patent: January 11, 2022Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Kartik Arvind Srinivasan, Xiyuan Lu
-
Patent number: 11217474Abstract: A non-vacuum, non-contact spinner wafer chuck including: a basal member including; a fastener receiver that receives a fastener; a chuck collar including: an inner collar wall; and an outer collar wall; and an engagement surface that: receives and engages a wafer; a wafer engagement cam including: an engagement face that engages the wafer; an index cam disposed on the chuck collar and comprising: an index face that faces toward the fastener receiver and that engages the wafer; and a spinner engager disposed on the spinner-side surface of the basal member and comprising: a spinner arm receiver bounded by a wall and that receives a spinner of the wafer processing machine, wherein the wafer engagement cam and the index cam engage the wafer and maintains an orientation of the wafer with respect to the index cam in response to rotation of the wafer relative to the non-vacuum, non-contact spinner wafer chuck.Type: GrantFiled: December 6, 2019Date of Patent: January 4, 2022Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventor: Glenn Emerson Holland
-
Patent number: 11209314Abstract: A cavity buildup dispersion spectrometer includes a shutter that modulates coherent electromagnetic radiation at a shutter frequency; and produces modulated electromagnetic radiation; a frequency shifter that frequency shifts the modulated electromagnetic radiation to a shifter frequency and produces frequency shifted radiation; a resonator that produces cavity radiation from the frequency shifted radiation and the coherent electromagnetic radiation, receives an analyte; subjects the analyte to cavity radiation, and transmits the cavity radiation as transmitted electromagnetic radiation; and a receiver that: produces a detector signal from the transmitted electromagnetic radiation, such that the detector signal includes a beat frequency that corresponds to a change in a motion of resonator that includes a change in the distance between the mirrors or a change of refractive index of the analyte in the intracavity space.Type: GrantFiled: December 18, 2020Date of Patent: December 28, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Adam Joseph Fleisher, Keith Alan Gillis, Joseph Terence Hodges
-
Patent number: 11204288Abstract: A triple point immersion cell article determines a triple point of a non-metallic analyte and includes: a first cryochamber including a first cryo-zone; a second cryochamber including a second cryo-zone that is: nested and disposed in the first cryochamber; and thermally isolated by the first cryochamber; a third cryochamber including a third cryo-zone, the third cryochamber being: nested and disposed in the second cryochamber; thermally isolated from the exterior environment by the first cryochamber and the second cryochamber; and thermally isolated from the first cryochamber by the second cryochamber; and a fourth cryochamber including a fourth cryo-zone disposed in the third cryochamber; a triple-point pressure vessel disposed in the fourth cryochamber; and a thermowell disposed in the triple-point pressure vessel.Type: GrantFiled: September 11, 2019Date of Patent: December 21, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Weston Leo Tew, Jr., Jay Robert Nanninga
-
Patent number: 11193914Abstract: A photoacoustic photon meter includes: a photoacoustic generative array including carbon nanotubes disposed in a photoacoustic generating pattern, such that the carbon nanotubes: receive photons comprising optical energy, and produce thermal energy from the optical energy; and a superstratum including a thermally expandable elastomer on which the photoacoustic generative array is fixedly disposed in position on the superstratum to spatially conserve the photoacoustic generating pattern, and such that the superstratum: is optically transparent to the photons; receives the thermal energy from the photoacoustic generative array; expands and contracts in response to receipt of the thermal energy; and produces photoacoustic pressure waves in response to the expansion and contraction, the photoacoustic pressure waves including a photoacoustic intensity and photoacoustic frequency that are based upon an amount of optical pressure applied to the carbon nanotubes by the photons, a spatial photon fluence of the photonsType: GrantFiled: January 28, 2020Date of Patent: December 7, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Jeeseong Hwang, Christopher Yung, Kimberly Ann Briggman, John Henry Lehman
-
Patent number: 11187571Abstract: An absolute mass balance determines an absolute mass of an object and includes: a dual diameter wheel including: a balance fulcrum; and a balance beam disposed on the balance fulcrum and including: a main mass arm and a counter mass arm; a main mass receiver that receives the object; a main magnet system including: a first main coil that produces a first magnetic field; a second main coil that produces a second magnetic field; and a permanent magnet that produces a third magnetic field that interacts with the first magnetic field and the second magnetic field; a displacement measuring system that provides a null position of the dual diameter wheel and measures a velocity of the main magnet system; and a driving motor including: an eddy current damper that provides a constant velocity of the main mass receiver; and a counter mass magnet system.Type: GrantFiled: December 6, 2019Date of Patent: November 30, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Leon Shih Chao, Jon Robert Pratt
-
Patent number: 11180844Abstract: Making alkali metal vapor cells includes: providing a preform wafer that includes cell cavities in a cavity layer; providing a sealing wafer having a cover layer and transmission apertures; disposing a deposition assembly on the sealing wafer; disposing an alkali metal precursor in the deposition assembly; disposing the sealing wafer on the preform wafer; aligning the transmission apertures with the cell cavities; subjecting the alkali metal precursor to a reaction stimulus; producing alkali metal vapor in the deposition assembly; communicating the alkali metal vapor to the cell cavities; receiving, in the cell cavities, the alkali metal vapor from the transmission apertures; producing an alkali metal condensate in the cell cavity; moving the sealing wafer such that the cover layer encapsulates the alkali metal condensate in the cell cavities; and bonding the sealing wafer to the preform wafer to make individually sealed alkali metal vapor cells in the preform wafer.Type: GrantFiled: March 19, 2019Date of Patent: November 23, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventor: John Kitching
-
Patent number: 11181489Abstract: Provided herein are methods and apparatus for characterizing high aspect ratio (HAR) structures of fabricated or partially fabricated semiconductor devices. The methods involve using small angle X-ray scattering (SAXS) to determine average parameters of an array of HAR structures. In some implementations, SAXS is used to analyze symmetry of HAR structures in a sample and may be referred to as tilted structural symmetry analysis-SAXS (TSSA-SAXS) or TSSA. Analysis of parameters such as tilt, sidewall angle, bowing, and the presence of multiple tilts in HAR structures may be performed.Type: GrantFiled: July 30, 2019Date of Patent: November 23, 2021Assignees: Lam Research Corporation, The Government of the United States of America, represented by the Secretary of Commerce, National Institute of Standards and TechnologyInventors: William Dean Thompson, Regis Joseph Kline, Daniel F. Sunday, Wenli Wu, Osman Sorkhabi, Jin Zhang, Xiaoshu Chen
-
Patent number: 11175224Abstract: An optical refraction barometer measures pressure based on refractivity changes and includes: an optical light source; an optical frequency controller; a first optical phase controller; a first polarization controller; an electronic reference arm in optical communication with the first polarization controller; a second optical phase controller in optical communication with the optical frequency controller; a second polarization controller in optical communication with the second optical phase controller; an electronic sample arm in optical communication with the second polarization controller and in electrical communication with the second optical phase controller; a second sideband frequency generator; a mixer in electrical communication with the detector and the second sideband frequency generator; and a first sideband frequency generator in electrical communication with the mixer; and a dual fixed length optical cavity refractometer.Type: GrantFiled: July 24, 2020Date of Patent: November 16, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Kevin O'Connell Douglass, Stephen Paul Eckel, Jacob Edmond Ricker, Jay Howard Hendricks
-
Patent number: 11175826Abstract: Provided is a process including: initializing a data block matrix; making supra-diagonal nodes that include at most one more node than sub-diagonal nodes; making a hash nodes with a hash sequence length that is proportional to a number of nodes in the row or column of nodes in which the hash node is arranged; and writing data blocks in nodes of the data block matrix such that a number of data blocks in nodes in the data block matrix is less than (N2?N) for N number of nodes in the data block matrix, wherein the data block matrix has dispersed data blocks.Type: GrantFiled: April 29, 2020Date of Patent: November 16, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventor: David Richard Kuhn
-
Patent number: 11165505Abstract: A quantum atomic receiving antenna includes: a probe laser; a coupling laser; an atomic vapor cell that includes: a spherically-shaped or parallelepiped-shaped atomic vapor space and Rydberg antenna atoms that undergo a radiofrequency Rydberg transition to produce quantum antenna light from probe light such that an intensity of the quantum antenna light depends on an amount of radiofrequency radiation received by the Rydberg antenna atoms, the quantum antenna light including a strength, direction and polarization of the radiofrequency radiation; and a quantum antenna light detector in optical communication with the atomic vapor cell.Type: GrantFiled: February 11, 2021Date of Patent: November 2, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Joshua Ari Gordon, Christopher Lee Holloway
-
Patent number: 11086193Abstract: A self-referencing nonlinear frequency converting photonic waveguide includes: a supercontinuum input optical taper; a supercontinuum nonlinear optical member that produces supercontinuum light spanning an optical octave with respect to input light; and a supercontinuum output optical taper; a second harmonic input optical taper; a second harmonic nonlinear optical member that receives the supercontinuum light and produces second harmonic light from the supercontinuum light, the second harmonic light including a second harmonic of the supercontinuum light; and a second harmonic output optical taper that receives the second harmonic light, the supercontinuum light, and the input light and co-propagates the second harmonic light, the supercontinuum light, and the input light from the second harmonic generator section as output light.Type: GrantFiled: August 27, 2020Date of Patent: August 10, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Jeffrey Taylor Chiles, Eric John Stanton, Ian Robert Coddington
-
Patent number: 11085793Abstract: A an inertial measurement unit determines performance degradation of a linear axis and includes: an accelerometer that, when disposed on a motion member of the linear axis including the motion member and a base member: measures acceleration of the motion member; and provides a displacement of the motion member in response to movement of the motion member; and a rate gyroscope that: measures an angular rate of movement of the motion member; and provides a yield angle for the motion member in response to movement of the motion member, wherein the displacement and yield angle determine performance degradation of the linear axis based on an error in linear movement of the motion member along the base member.Type: GrantFiled: August 31, 2017Date of Patent: August 10, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventor: Gregory Vogl
-
Patent number: 11073373Abstract: A non-contact coordinate measuring machine includes: a noncontact metrology probe including: first and second cameras, wherein the second camera has a second field of view that overlaps a first field of view in a prime focal volume; a third camera has a third field of view that overlaps the prime focal volume and forms a probe focal volume; a multidimensional motion stage comprising: a machine coordinate system and motion arms that move the noncontact metrology probe in a machine coordinate system; a camera platform on which the cameras are disposed; a tracker with a world coordinate system and that determines a location of the probe focal volume in a tracker field of view, the non-contact coordinate measuring machine having the noncontact metrology probe for non-contact coordinate measurement of an object in an absence a stylus and in an absence of physical contact with the object.Type: GrantFiled: August 20, 2019Date of Patent: July 27, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventor: Joshua A. Gordon
-
Patent number: 11069507Abstract: A sample carrier for in situ transmission electron microscopy (TEM) has a dielectric substrate with a conductive layer that forms a coplanar waveguide. The coplanar waveguide has a first and second leads formed by the conductive layer. The first lead is between an adjacent pair of second leads and is spaced from the second leads by a respective gap. The coplanar waveguide is configured to transmit an electrical signal to a specimen held by the sample carrier, in particular, an electrical signal having a frequency in the radio-frequency (RF) regime (3 kHz-300 GHz), for example, up to 100 GHz. The sample carrier may be mounted to a TEM sample holder, which supports the sample carrier within a vacuum chamber of the microscope and provides electrical connection between the leads of the sample carrier and an RF source external to the vacuum chamber.Type: GrantFiled: March 5, 2020Date of Patent: July 20, 2021Assignees: University of Maryland, College Park, Government of the United States of America, as represented by the Secretary of Commerce, National Institute of Standards and TechnologyInventors: Michael Katz, Karl Schliep, June Lau, Jason J. Gorman
-
Patent number: 11062044Abstract: An access control system for managing and enforcing an attribute based access control (ABAC) policy includes: a minimum ABAC implementation that produces a representation access control list in an ABAC policy system; and a local host system that produces a resource repository access control list in the local host system such that the resource repository access control list is based on the representation access control list.Type: GrantFiled: March 12, 2020Date of Patent: July 13, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: David F. Ferraiolo, Gopi Katwala, Serban Gavrila
-
Patent number: 11050405Abstract: A micromechanical vibrasolator isolates vibration of a micromechanical resonator and includes: phononic bandgap mirrors, monophones connected serially; phonophore arms in an alternating sequence of phonophore arm-monophone-phonophore arm; abutments in acoustic communication with the phononic bandgap mirrors; wherein the micromechanical resonator is interposed between the phononic bandgap mirrors with phononic bandgap mirror arranged in parallel on opposing sides of the micromechanical resonator arranged perpendicular to a direction of vibration of an in-plane vibrational mode of the micromechanical resonator.Type: GrantFiled: April 5, 2019Date of Patent: June 29, 2021Assignee: GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCEInventors: Jason J. Gorman, Vikrant J. Gokhale