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Physical Measurement Laboratory

Patents

Searches Patent Title, Abstract, Body, Technology Type, and NIST Inventors
Displaying 101 - 125 of 141
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

Photonic probe for atomic force microscopy

NIST Inventors
Marcelo Davanco and Vladimir Aksyuk
A photonic probe for atomic force microscopy includes: a cantilever including: a tip; a wing in mechanical communication with the tip; an extension interposed between the tip and the wing to synchronously communicate motion of the tip with the wing; an optical resonator disposed proximate to the
Diagram of cells and other components within a blood vessel

Measuring a size distribution of nucleic acid molecules in a sample

NIST Inventors
Craig Copeland and Samuel M. Stavis
A process for measuring a size distribution of a plurality of nucleic acid molecules, the process comprising: labeling the nucleic acid molecules with a fluorescent dye comprising a plurality of fluorescent dye molecules to form labeled nucleic acid molecules, such that a number of fluorescent dyes
A line drawing of the protector for photon detector

Protector for Photon Detector

NIST Inventors
David M. Rutter
This invention describes a device and method to help protect a given avalanche photo diode (APD) from excessive light or photon counts without modification to the APD itself or the associated power for the APD. High photon count rate to a reference frequency and rapidly shutting down the APD if a
Exploded schematic shows line drawings of five layers inside the optofluidic flow meter.

Optofluidic Flow Meter

NIST Inventors
Zeeshan Ahmed and Gregory A Cooksey
An optofluidic flow meter to determine a rate of fluid flow in a flow member includes: the flow member; a primary fluid conduit disposed in the flow member and that receives a fluid; a secondary fluid conduit disposed in the flow member; and a fiber optic comprising a fiber Bragg grating interposed
an image showing several different charts and figures that is titled "High-Resolution imaging and spectroscopy at High Pressure: A Novel Liquid Cell for the TEM"

Vacuum Compatible Fluid Sampler

NIST Inventors
Glenn Holland , Samuel M. Stavis and James Alexander Liddle
A fluid sampler includes: a sample cell that includes: a substrate comprising: a first port; a viewing reservoir in fluid communication with the first port and the second port and that receives the fluid from the first port and communicates the fluid to the second port, the viewing reservoir
A disk-shaped device is smaller than the half-dollar coin underneath it.

Smart Mirror

NIST Inventors
Alexandra (Aly) Artusio-Glimpse , John H. Lehman , Michelle Stephens , Nathan A Tomlin and Paul A. Williams
Radiation pressure is a force that results when light reflects from a mirror. By measuring the force on a mirror, the power in a laser beam can be assessed. We have invented a miniaturized mirrored force sensor that combines several key elements to make a sensor that is smaller, faster, more
Drawings describing the technology within patent 10,639,634

Vacuum Compatible Fluid Sampler

NIST Inventors
James Alexander Liddle , Samuel M. Stavis and Glenn Holland
A fluid sampler includes: a sample cell that includes: a substrate comprising: a first port; a second port in fluid communication with the first port; a viewing reservoir in fluid communication with the first port and the second port and that receives the fluid from the first port and communicates
Image of Resonators fabricated into a micro-electro-mechanical Systems devices as built-in motion testers

Localized gap plasmon resonator

NIST Inventors
James Alexander Liddle and Vladimir Aksyuk
Two parallel gold surfaces are separated by a thin gap filled with a compliant dielectric, air or vacuum. The lateral extent (less than about 500 nm) and the shape of the gap, form a plasmonic resonator with frequency sensitive to the gap change resulting from mechanical deformation. This nanoscale
Image of devices on a table

Optical Parametric Oscillator

NIST Inventors
John T. Woodward IV
An optical parametric oscillator produces optical parametric light and includes a frequency splitter to produce signal light and idler light; a wavelength selector to select a wavelength of the signal light and to produce optical parametric light from the selected wavelength of the signal light; and
Image of an map view with the text "Natural gas extraction east of Platteville Colorado. DCS could monitor over 100 sites from central location. Overlapping fields could ensure complete coverage".

Hub and Spoke System for Detecting and Locating Gas Leaks

NIST Inventors
Greg Rieker , Ian Coddington , Kuldeep Prasad and Anna Karion
A system for detecting gas leaks and determining their location and size. A data gathering portion of the system utilizes a hub and spoke configuration to collect path-integrated spectroscopic data over multiple open paths around an area. A processing portion of the system applies a high-resolution
A flat pink device with a round black patch lies over a quarter.

Electrical-Substitution Radiometer

NIST Inventors
John H. Lehman and Nathan A Tomlin
A radiometer includes a substrate; a radiation absorber disposed on the substrate to absorb radiation; a thermal member disposed on the substrate to change electrical resistance in response to a change in temperature of the radiometer; and a thermal link to connect the radiometer to a thermal
A line drawing showing the entire structure, which includes the resonator and supporting substrate.

Reticulated Resonator, Process for Making and Use of Same

NIST Inventors
Raymond Simmonds , Katarina Cicak , Cindy Regal and Thomas Purdy
A reticulated resonator includes: a reticulated substrate that includes: a substrate frame; and a phononic structure in mechanical communication with the substrate frame and including a plurality of unit members arranged in a two-dimensional array; and a membrane disposed on the reticulated
Image of diagrams for the Classic Mach - Zehnder interferometer, Microwae transmission line based vserion, and guided wave probe tip interacts with sample

Phase Shift Detector Process for Making and Use of Same

NIST Inventors
Kin (Charles) Cheung , Jason Ryan and Jason Campbell
The detector senses very small phase shifts in a highly balanced microwave bridge. An electric field optimized microwave probe, in close proximity to a sample, serves to perturb the degree of bridge balance due to a .change in effective dielectric constant of the sample. The major innovation

High Performance Topological Insulator Transistors

NIST Inventors
Curt A. Richter
Topological insulator is characterized as a new class of materials which have an insulating band gap in the bulk and gap less surface state which is protected by its intrinsic time-reversal symmetry. These topological insulators have been shown to have unique materials and electronics properties by
Image of 2 security officers inspecting packages

Authentication Article and Process for Making Same

NIST Inventors
Yaw S. Obeng and Joseph J. Kopanski
An authentication article includes: a substrate including: a first surface; a second surface disposed laterally to the first surface and at a depth below the first surface; and a plurality of indentations including the depth at the second surface of the substrate; and an array disposed on the
A metal cube (RPPM) mounted on a metal surface has round holes cut in each side.

Optical Power Meter

NIST Inventors
John H. Lehman and Paul A. Williams
An optical meter includes a force member to receive a force and a reflector disposed on the force member to receive radiation and to communicate a pressure of the radiation to the force member. The reflector includes a reflective surface, and the force member is configured to be displaced in
Diagram shows ethanol, shields, vapor cell, reservoir, heater.

Detection of J-Coupling Using Atomic Magnetometer

NIST Inventors
John Kitching
An embodiment of a method of detecting a J-coupling includes providing a polarized analyte adjacent to a vapor cell of an atomic magnetometer; and measuring one or more J-coupling parameters using the atomic magnetometer. According to an embodiment, measuring the one or more J-coupling parameters
Schematic of magnetometer/gyroscope shows layers with photodetectors on top and laser at bottom.

Compact Atomic Magnetometer and Gyroscope

NIST Inventors
John Kitching and Elizabeth Donley
An atomic magnetometer that simultaneously achieves high sensitivity, simple fabrication and small size. This design is based on a diverging (or converging) beam of light that passes through an alkali atom vapor cell and that contains a distribution of beam propagation vectors. The existence of more

Body Cube And Process For Culturing Tissue

NIST Inventors
Mandy Esch
This invention describes a microphysiologic body cube that holds multiple organ chips and that can be operated with near physiologic amounts of blood surrogate. The invention can be used to culture multiple tissues with near-physiologic amounts of blood surrogate within one systems. Microphysiologic

Calibration Apparatus And Calibrating A Laser Doppler Vibrometer

NIST Inventors
Michael Gaitan , Benjamin Reschovsky and Akobuije Chijioke
We have developed and demonstrated a new method to calibrate laser Doppler vibrometers (LDVs). The method uses two acousto-optic modulators to frequency shift the light from the LDV under test by a known quantity to create a synthetic velocity shift that is traceable to a time and frequency
Fiber magnetometer

Chip-Scale Atomic Magnetometer

NIST Inventors
John Kitching and Vladislav Gerginov
A magnetometer and method of use is presently disclosed. The magnetometer has at least one sensor void of extraneous metallic components, electrical contacts and electrically conducting pathways. The sensor contains an active material vapor, such as an alkali vapor, that alters at least one