Patents Assigned to National Technology & Engineering Solutions of Sandia, LLC
  • Patent number: 9947379
    Abstract: Devices and methods for non-volatile analog data storage are described herein. In an exemplary embodiment, an analog memory device comprises a potential-carrier source layer, a barrier layer deposited on the source layer, and at least two storage layers deposited on the barrier layer. The memory device can be prepared to write and read data via application of a biasing voltage between the source layer and the storage layers, wherein the biasing voltage causes potential-carriers to migrate into the storage layers. After initialization, data can be written to the memory device by application of a voltage pulse between two storage layers that causes potential-carriers to migrate from one storage layer to another. A difference in concentration of potential carriers caused by migration of potential-carriers between the storage layers results in a voltage that can be measured in order to read the written data.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: April 17, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Farid El Gabaly Marquez, Albert Alec Talin
  • Patent number: 9939485
    Abstract: The various technologies presented herein relate to providing prognosis and health management (PHM) of a photovoltaic (PV) system. A PV PHM system can eliminate long-standing issues associated with detecting performance reduction in PV systems. The PV PHM system can utilize an ANN model with meteorological and power input data to facilitate alert generation in the event of a performance reduction without the need for information about the PV PHM system components and design. Comparisons between system data and the PHM model can provide scheduling of maintenance on an as-needed basis. The PHM can also provide an approach for monitoring system/component degradation over the lifetime of the PV system.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: April 10, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jay Johnson, Daniel Riley
  • Patent number: 9941857
    Abstract: A spur cancelling, electromechanical filter includes a first resonator having a first resonant frequency and one or more first spurious responses, and it also includes, electrically connected to the first resonator, a second resonator having a second resonant frequency and one or more second spurious responses. The first and second resonant frequencies are approximately identical, but the first resonator is physically non-identical to the second resonator. The difference between the resonators makes the respective spurious responses different. This allows for filters constructed from a cascade of these resonators to exhibit reduced spurious responses.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: April 10, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Roy H. Olsson, Vincent M. Hietala
  • Patent number: 9934469
    Abstract: A method for preparing an entangled quantum state of an atomic ensemble is provided. The method includes loading each atom of the atomic ensemble into a respective optical trap; placing each atom of the atomic ensemble into a same first atomic quantum state by impingement of pump radiation; approaching the atoms of the atomic ensemble to within a dipole-dipole interaction length of each other; Rydberg-dressing the atomic ensemble; during the Rydberg-dressing operation, exciting the atomic ensemble with a Raman pulse tuned to stimulate a ground-state hyperfine transition from the first atomic quantum state to a second atomic quantum state; and separating the atoms of the atomic ensemble by more than a dipole-dipole interaction length.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: April 3, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Yuan Yu Jau, Grant Biedermann, Ivan Deutsch
  • Patent number: 9929293
    Abstract: In a superlattice (SL) photodetector, each period of the SL includes first and second semiconductor layers having different compositions, at least one of which comprises indium arsenide (InAs). At least one of these two semiconductor layers has a graded composition. In embodiments, the first semiconductor layer comprises InAs and the second semiconductor layer is a graded layer comprising indium arsenide antimonide (InAsSb), wherein the antimony (Sb) concentration is varied. In examples, the Sb concentration in the second layer gradually increases from the top and bottom toward the middle of the layer.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: March 27, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jin K. Kim, John F. Klem, Eric A. Shaner, Benjamin Varberg Olson, Emil Andrew Kadlec, Anna Tauke-Pedretti, Torben Ray Fortune
  • Patent number: 9928827
    Abstract: A quantum device includes a phononic crystal defined on a semiconductor substrate. Phononic cavities are defined in the phononic crystal, wherein each phononic cavity contains an implanted acceptor atom. Phononic waveguides are defined in the phononic crystal, wherein each waveguide is coupled to at least one phononic cavity. At least some phononic waveguides are arranged to provide coupling between phononic cavities and ultrasonic transducers. At least some phononic waveguides are arranged to provide coupling between different phononic cavities.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: March 27, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Ihab Fathy El-Kady, Edward S. Bielejec, Charles M. Reinke, Susan M. Clark
  • Patent number: 9923284
    Abstract: The various embodiments presented herein relate to extraordinary electromagnetic transmission (EEMT) to enable multiple inefficient (un-matched) but coupled radiators and/or apertures to radiate and/or pass electromagnetic waves efficiently. EEMT can be utilized such that signal transmission from a plurality of antennas and/or apertures occurs at a transmission frequency different to transmission frequencies of the individual antennas and/or aperture elements. The plurality of antennas/apertures can comprise first antenna/aperture having a first radiating area and material(s) and second antenna/aperture having a second radiating area and material(s), whereby the first radiating/aperture area and second radiating/aperture area can be co-located in a periodic compound unit cell. Owing to mutual coupling between the respective antennas/apertures in their arrayed configuration, the transmission frequency of the array can be shifted from the transmission frequencies of the individual elements.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: March 20, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Hung Loui, Bernd H. Strassner, II
  • Patent number: 9917149
    Abstract: A diode includes a second semiconductor layer over a first semiconductor layer. The diode further includes a third semiconductor layer over the second semiconductor layer, where the third semiconductor layer includes a first semiconductor element over the second semiconductor layer. The third semiconductor layer additionally includes a second semiconductor element over the second semiconductor layer, wherein the second semiconductor element surrounds the first semiconductor element. Further, the third semiconductor layer includes a third semiconductor element over the second semiconductor element. Furthermore, a hole concentration of the second semiconductor element is less than a hole concentration of the first semiconductor element.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 13, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jeramy Ray Dickerson, Jonathan Wierer, Jr., Robert Kaplar, Andrew A. Allerman
  • Patent number: 9915740
    Abstract: An ionizing radiation detector or scintillator system includes a scintillating material comprising an organic crystalline compound selected to generate photons in response to the passage of ionizing radiation. The organic compound has a crystalline symmetry of higher order than monoclinic, for example an orthorhombic, trigonal, tetragonal, hexagonal, or cubic symmetry. A photodetector is optically coupled to the scintillating material, and configured to generate electronic signals having pulse shapes based on the photons generated in the scintillating material. A discriminator is coupled to the photon detector, and configured to discriminate between neutrons and gamma rays in the ionizing radiation based on the pulse shapes of the output signals.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: March 13, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Patrick L. Feng
  • Patent number: 9911039
    Abstract: Various technologies pertaining to identifying objects of interest in remote sensing images by searching over geospatial-temporal graph representations are described herein. Graphs are constructed by representing objects in remote sensing images as nodes, and connecting nodes with undirected edges representing either distance or adjacency relationships between objects and directed edges representing changes in time. Geospatial-temporal graph searches are made computationally efficient by taking advantage of characteristics of geospatial-temporal data in remote sensing images through the application of various graph search techniques.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Randolph Brost, David Nikolaus Perkins
  • Patent number: 9912420
    Abstract: Various technologies for isolating a signal of interest from signals received contemporaneously by an antenna are described herein. A time period for which a signal of interest is present in a second signal can be identified based upon ratios of values of the second signal to the mean value of the second signal. When the ratio of the value of the second signal at a particular time to the mean of the second signal exceeds a threshold value, the signal of interest is considered to be present in the second signal.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Cameron H. Musgrove, Douglas Thompson
  • Patent number: 9911981
    Abstract: An air-cathode battery includes a porous cathode current collector with an air interface, an ionic liquid electrolyte disposed in pores of the porous cathode current collector; a metal anode, and a separator in contact with the ionic liquid electrolyte and coupled between the porous cathode current collector and the metal anode. The porous cathode current collector is an ionogel formed from a silica sol-gel or a carbonized resorcinol-formaldehyde aerogel and the pores are functionalized with a thiol group-containing species that is functionalized with one or more catalytic nanoparticles or the pores are electroplated with catalytic metal.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Marie C. Kane
  • Patent number: 9909549
    Abstract: Various technologies presented herein relate to enhancing mixing inside a combustion chamber to form one or more locally premixed mixtures comprising fuel and charge-gas with low peak fuel to charge-gas ratios to enable minimal, or no, generation of soot and other undesired emissions during ignition and subsequent combustion of the locally premixed mixtures. To enable sufficient mixing of the fuel and charge-gas, a jet of fuel can be directed to pass through a bore of a duct causing charge-gas to be drawn into the bore creating turbulence to mix the fuel and the drawn charge-gas. The duct can be located proximate to an opening in a tip of a fuel injector. The duct can comprise of one or more holes along its length to enable charge-gas to be drawn into the bore, and further, the duct can cool the fuel and/or charge-gas prior to combustion.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Charles J. Mueller
  • Patent number: 9907496
    Abstract: The present invention relates to a biological probe structure, as well as apparatuses, systems, and methods employing this structure. In particular embodiments, the structure includes a hermetically sealed unit configured to receive and transmit one or more optical signals. Furthermore, the structure can be implanted subcutaneously and interrogated externally. In this manner, a minimally invasive method can be employed to detect, treat, and/or assess the biological target. Additional methods and systems are also provided.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Murat Okandan, Gregory N. Nielson
  • Patent number: 9911871
    Abstract: A photovoltaic module includes colorized reflective photovoltaic cells that act as pixels. The colorized reflective photovoltaic cells are arranged so that reflections from the photovoltaic cells or pixels visually combine into an image on the photovoltaic module. The colorized photovoltaic cell or pixel is composed of a set of 100 to 256 base color sub-pixel reflective segments or sub-pixels. The color of each pixel is determined by the combination of base color sub-pixels forming the pixel. As a result, each pixel can have a wide variety of colors using a set of base colors, which are created, from sub-pixel reflective segments having standard film thicknesses.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Anthony L. Lentine, Gregory N. Nielson, Jose Luis Cruz-Campa, Murat Okandan, Ronald S. Goeke
  • Patent number: 9909233
    Abstract: The present invention pertains to the use of mobile coherent interfaces in a ferroelectric material to interact with optical phonons and, ultimately, to affect the material's optical properties. In altering the optical phonon properties, the optical properties of the ferroelectric material in the spectral range near-to the phonon mode frequency can dramatically change. This can result in a facile means to change to the optical response of the ferroelectric material in the infrared.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 6, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jon F. Ihlefeld, Michael B. Sinclair, Thomas E. Beechem, III
  • Patent number: 9906311
    Abstract: Various technologies for performing continuous-variable (CV) and discrete-variable (DV) quantum key distribution (QKD) with integrated electro-optical circuits are described herein. An integrated DV-QKD system uses Mach-Zehnder modulators to modulate a polarization of photons at a transmitter and select a photon polarization measurement basis at a receiver. An integrated CV-QKD system uses wavelength division multiplexing to send and receive amplitude-modulated and phase-modulated optical signals with a local oscillator signal while maintaining phase coherence between the modulated signals and the local oscillator signal.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: February 27, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Christopher DeRose, Mohan Sarovar, Daniel B. S. Soh, Anthony Lentine, Paul Davids, Ryan Camacho
  • Patent number: 9903001
    Abstract: A system and methods for detection of a nucleic acid including forming a plurality of nucleic acid detection complexes are described, each of the complexes including a nucleic acid analyte, a detection agent and a functionalized probe. The method further including binding the nucleic acid detection complexes to a plurality of functionalized particles in a fluid sample and separating the functionalized particles having the nucleic acid detection complexes bound thereto from the fluid sample using a density media. The nucleic acid analyte is detected by detecting the detection agent.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 27, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Chung-Yan Koh, Ulrich Y. Schaff, Gregory Jon Sommer
  • Patent number: 9897642
    Abstract: The present invention relates to photovoltaic systems capable of identifying the location of an arc-fault. In particular, such systems include a unique filter connected to each photovoltaic (PV) string, thereby providing a unique filtered noise profile associated with a particular PV string. Also described herein are methods for identifying and isolating such arc-faults.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: February 20, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Jay Johnson
  • Patent number: 9897556
    Abstract: Technologies related to determining elemental composition of a sample that comprises fissile material are described herein. In a general embodiment, a pulsed neutron generator periodically emits bursts of neutrons, and is synchronized with an analyzer circuit. The bursts of neutrons are used to interrogate the sample, and the sample outputs gamma rays based upon the neutrons impacting the sample. A detector outputs pulses based upon the gamma rays impinging upon the material of the detector, and the analyzer circuit assigns the pulses to temporally-based bins based upon the analyzer circuit being synchronized with the pulsed neutron generator. A computing device outputs data that is indicative of elemental composition of the sample based upon the binned pulses.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: February 20, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventor: Sudeep Mitra