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Search Patents

Displaying 176 - 200 of 286

Phase Transition Based Resistive Random-Access Memory

NIST Inventors
Albert Davydov , Sergiy Krylyuk and Huairuo Zhang
A method of switching a phase-change device (Device), including changing phase of the Device from a semiconducting 2H phase to a new 2H d phase with a higher conductivity, the Device having an active material with a thickness including a phase transition material to thereby transition the Device

Methods And Apparatus For Generating Mid-Infrared Frequency Combs

NIST Inventors
Scott Diddams , Scott Papp and Abijith Kowligy
Apparatus and methods for generating mid-IR frequency combs using intra-pulse DFG. A mode-locked pulse generation laser generates near-IR pulses which are amplified. The amplified pulses are spectrally broadened by a nonlinear element, for example a normal dispersion highly nonlinear fiber (ND-HNLF)

Advanced Metal-filling Technology for Enhanced X-Ray Imaging in Medical Diagnostics

NIST Inventors
Daniel Josell and Thomas P. Moffat
These invention comprises special chemical solutions and methods for filling tiny grooves or shapes in materials with metals like gold. The methods ensure the metal fills the space evenly from the bottom up, which is hard to do with regular techniques and leads to smoother, more accurate results.
Experminetal system configuration for Ultra-High Spectral Resolution Spectrometer Based on Electromagnetically-Induced Transparency

Direct Absolute Spectrometer for Direct Absolute Spectrometry

NIST Inventors
Lijun Ma , Xiao Tang and Oliver T. Slattery
A direct absolute spectrometer includes: a first light source; a second light source; an optical combiner that produces dual light; an optical cell that receives the dual light; an electromagnetically induced transparent medium that is optically transparent to single photon light in a presence of
A timeline of long distance communication techniques

Communication Linker for Communication Linking

NIST Inventors
Sergey Polyakov and Ivan Burenkov
The US has the leading optical communication industry and one of the largest telecommunication markets. Our invention directly improves the underlying technology of the telecommunication infrastructure. Quantum Coherent Frequency Shift Keying (CFSK) receiver is a device that determines the frequency

Optical Phantom for Producing a Time-Resolved Diffuse Reflectance Spectrum

NIST Inventors
Jeeseong C. Hwang
An optical phantom produces a time-resolved diffuse reflectance spectrum and includes: a light source; a spatial light modulator; and an optical delay line including optical fibers of different length that produce different time-of-flight distributions, such that different time-of-flight
The optofluidic flowmeter determines flow rate by measuring the amount of photobleaching in a dye such as fluorescein.

Optical Flow Meter

NIST Inventors
Anthony J. Kearsley , Paul Patrone and Gregory A Cooksey
NIST scientists have developed an optical flow meter that can continuously measure flow in the nanoliter per minute range. Over the instrument’s dynamic range, the relative uncertainty in flow rate remains constant and can be controlled to within 5% or better. No existing technology can

Nanohole Array Based Sensors with Various Coating and Temperature Control

NIST Inventors
Kurt D Benkstein , Steve Semancik and Yangyang Zhao
This invention combines very fast chemical separation with very fast photonic detection to achieve gas-phase monitoring for use in a range of applications, including medical breath analysis. Appropriately "matched" timescales are needed so that fast chemical discrimination, related to slightly

Liquid Crystal Thermometer for MRI

NIST Inventors
Elizabeth Mirowski and Kathryn Keenan
Cost effective and quality assurance friendly magnetic resonance imaging thermometer using non-encapsulated liquid c1ystals to be incorporated in standard reference objects for magnetic resonance imaging.
Depiction of Non-Resonant Electron Spin Resonant Probe And Associated Hardware

Non-Resonant Electron Spin Resonant Probe And Associated Hardware

NIST Inventors
Jason Campbell , Jason Ryan , Kin (Charles) Cheung , Robert Gougelet and Pragya Shrestha
This invention allows citizens to assess themselves (at the 2 Gy ± 0.5 Gy exposure level) using a dosimeter embedded in commercial and non-commercial identification cards. Patients can then seek appropriate action without the need for first responder and/ or public health official intervention. The

Collaborative Robot Motion and Force-Torque Gauges

NIST Inventors
Yong Sik Kim
A collaborative robot motion gauge determines a motion of a collaborative robot and includes: a bar; a dextral metrology member disposed on the bar; a dextral motion coupler moveably disposed on the bar; a dextral displacement sensor disposed on the dextral metrology member in communication with the
Line drawing of the method for manufacturing an array of sensors on a single chip

Method for Manufacturing an Array of Sensors on a Single Chip

NIST Inventors
Albert Davydov and Vladimir Oleshko
A nanostructure sensing device comprises a semiconductor nanostructure having an outer surface, and at least one of metal or metal-oxide nanoparticle clusters functionalizing the outer surface of the nanostructure and forming a photoconductive nanostructure/nanocluster hybrid sensor enabling light
Graphic with multiple blocks showing a knowledge management system

Knowledge Management System and Process for Managing Knowledge

NIST Inventors
John T. Elliott , Talapady N. Bhat , Ursula R. Kattner , Carelyn E. Campbell , Ram D. Sriram , Eswaran Subrahmanian and Jacob Collard
A knowledge management system includes: a default knowledge system including: a knowledge system and a knowledge database in communication with the knowledge system; and a knowledge store in communication with the default knowledge system and including: a taxonomy amendment, an annotation amendment
Line drawing of the thermal impedance amplifier

Thermal Impedance Amplifier

NIST Inventors
Adam McCaughan , Varun Verma and Sonia Buckley
A thermal impedance amplifier includes: a resistive layer including: a resistance member; a first electrode in electrical communication with the resistance member; and a second electrode in electrical communication with the resistance member; a switch layer opposing the resistive layer and including
X-Ray Spectrometer

X-Ray Spectrometer

NIST Inventors
Kevin L. Silverman , Carl D. Reintsema , Galen O'Neil , Luis Miaja Avila , Daniel Swetz , W.Bertrand (Randy) Doriese , Dan Schmidt , Bradley Alpert , Joseph Fowler , Joel Ullom and Ralph Jimenez
This invention includes: an x-ray plasma source that produces primary x-rays; an x-ray optic that transmits and focuses the primary x-ray onto a sample jet from which fluorescence x-ray are emitted; and a microcalorimeter array detector that measures the energy of the incoming fluorescence x-rays

Neural Member, Neural Network, and Neurological Memory

NIST Inventors
Stephen E. Russek , William Rippard and Matthew Pufall
A neural member includes: an axonal superconducting electrode; a dendritical superconducting electrode disposed opposing the axonal superconducting electrode; a synaptic barrier interposed between the axonal superconducting electrode and the dendritical superconducting electrode and including a
This image of a chart titled "How does it work" that describes the optomechanical reference.

Optomechanical Reference

NIST Inventors
Gordon A. Shaw and Jacob Taylor
An optomechanical reference includes a basal member; a flexure that includes: a floating link; a first flexural member; and a second flexural member such that: the floating link is moveably disposed; a first stator; a second stator; a first cavity including: a first primary mirror; a first secondary

Neuromimetic Circuit

NIST Inventors
Jeff Shainline and Sonia Buckley
Optoelectronic neural networks comprise a system of interconnected processing units (neurons) interconnected by integrated photonic waveguides. The processing units receive photonic signals from other units. Each unit sums the received signals on a waveguide-integrated photon detector, and when the
Powerpoint slide, showing via map and photograhpy, the distance from NIST Boulder to Valmont Butte

Optical Time Distributor and Process for Optical Two-Way Time-Frequency Transfer

NIST Inventors
Laura Sinclair , William C. Swann and JD Deschenes
The invention is a method to compare and synchronize "clocks" (i.e., local timescales) through optical links across free space, which include open-air paths through the atmosphere to other terrestrial sites or to satellites, as well as satellite-to-satellite paths. The challenge is to compare the
A line drawing describing the apparatus and method for dynamically controlling spectrum access

Apparatus and Method for Dynamically Controlling Spectrum Access

NIST Inventors
Timothy A. Hall and Anirudha Sahoo
There is a need for government and industry to share spectrum due to limited frequency band. This invention provides for a dynamic spectrum access (DSA) in a tiered sharing system whose goal is to increase spectrum utilization. It is an apparatus (hardware + firmware) that implements a method for
The figure shows a microfabricated optical probe with the following components: 110 - optical loop, 111 – structured region of 110, 114 – optical waveguide, 116 – first arm of optical waveguide, 120 – substrate, 122 – optical cladding layer, 124 – first single mode optical fiber, 126 – primary light, and 128 – output light.

Microfabricated Optical Probe

NIST Inventors
Vladimir Aksyuk and Kartik Srinivasan
Integrated photonics research and manufacturing requires a probe for in-line nondestructive optical testing of devices. Current optical probes require dedicated and large coupling areas in the photonic circuit, cannot provide sufficient control over the degree, location and direction of optical
Displaying 176 - 200 of 286
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