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Patents

Searches Patent Title, Abstract, Body, Technology Type, and NIST Inventors
Displaying 1 - 20 of 20
Chart illustrating the fiber channel structure.

A Better Way to Connect Fiber Optics to Computer Chips

NIST Inventors
Saeed Khan and Jeff Shainline
This invention provides a way to efficiently connect optical fibers to semiconductor chips. It improves the transfer of light signals between the fiber and the chip, reducing loss and increasing performance. The design allows for better alignment and integration, making it easier to manufacture and
Description of Patent 11,165,505

Quantum Atomic Receiving Antenna and Quantum Sensing of Radiofrequency Radiation

NIST Inventors
Josh Gordon and Christopher L. Holloway
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. These undergo a radiofrequency Rydberg transition to produce quantum antenna light from probe
Block diagram of the Rydberg atom "mixer". The Rydberg atoms separate the difference frequency (IF) from two RF signals (LO and SIG). This demodulated signal is carried in the probe laser.

Rydberg Atom Mixer and Determining Phase of Modulated Carrier Radiation

NIST Inventors
Josh Gordon , Christopher L. Holloway and Matt Simons
A Rydberg atom mixer determines a phase of modulated carrier radiation and includes: a reference radiofrequency source for reference radiofrequency radiation; a modulated carrier source for modulated carrier radiation; a vapor cell to contain gas atoms and that receives reference radiofrequency
Patent Images and description for 10,955,617

High-Resolution Photonic Thermometer Article

NIST Inventors
Kevin O Douglass , Zeeshan Ahmed and Nikolai Klimov
A high-resolution photonic thermometer article performs high-resolution thermometry and includes: a light source; a photonic thermometer with a waveguide and a photonic crystal cavity that stores light; a photodetector in communication with the photonic thermometer; a phase sensitive detector in
Graph inset shows plots of measurements obtained at NIST exhibiting linear temperature dependence for Fiber Bragg Gratings and Photonic Ring Resonators on a Chip.

Photonic Calorimeter

NIST Inventors
Ronald Tosh , Zeeshan Ahmed , Ryan P. Fitzgerald and Nikolai Klimov
The calorimeter uses embedded, nanofabricated photonic sensors to enable micro-scale spatial resolution of dose (energy) distributions and gradients. It presents an alternative to thermistors used in conventional calorimeters for radiation dosimetry, comprising photonic sensors for in-situ dose and
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
A method and apparatus for spectrum access by secondary users in a dynamic spectrum access (DSA) system are provided. In a DSA system, a primary user (PU) has priority access to the channel. A secondary user (SU) can transmit opportunistically when the channel is idle, i.e., when the PU is not
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
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
The Smart Mirror is a device that accurately measures the power of laser sources without disturbing the laser beam. This is a promising technology for accurate monitoring of output power in industrial lasers that allows power measurement during the laser’s performance of its routine operations. Such

Process for Forming a Transition Zone Terminated Superconformal Filling

NIST Inventors
Daniel Josell and Thomas P. Moffat
Forming a transition zone terminated superconformal filling in a recess includes: providing an electrodeposition composition including: a metal electrolyte including a plurality of metal ions, solvent, and suppressor; providing the article including: a field surface and the recess that includes a
Clockwise from upper left: bolometer for optical fiber power measurement operates at 4K, bolometer for space-based measurement of solar spectral irradiance, operates at room temperature; bolometer for continuous wave, visible/near infrared laser power measurement, operates at room temperature; bolometer for fast far infrared power calibration, operates at 4K.

NIST Radiometer

NIST Inventors
John H. Lehman and Nathan A Tomlin
This advanced radiometer is composed of a substrate, a radiation absorber placed on the substrate to absorb radiation, a thermal component placed 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
Optical meter 1 includes ref ector 4 disposed force member 2. Ref ector 4 is conf gured to receive radiation and to communicate a pressure of the radiation to force member 2. Ref ector 4 includes substrate 5 and ref ective surface 8. Force member 2 is conf gured to be displaced in response to receiving the force comprising the pressure, and optical meter 1 is conf gured to measure a power of the radiation, an energy of the radiation, or a combination thereof based on the pressure.

Optical Meter and Use of Same

NIST Inventors
John H. Lehman and Paul A. Williams
With this technology, high-power laser beams from 1-kilowatt (kW) up to 140 kW (and beyond) can be measured accurately using optical radiation pressure. By shining a laser beam on a reflective surface and then measuring how much the surface moves in response to the light’s pressure, researchers can
Photonic thermometer packages

Optical Temperature Sensor

NIST Inventors
Zeeshan Ahmed , Steve Semancik , Jacob Taylor and Gregory F. Strouse
A thermometer includes a substrate; an optical resonator disposed on the substrate and including an optical resonance, the optical resonator being configured to receive a resonant frequency corresponding to the optical resonance; and a waveguide disposed on the substrate proximate to the optical
System for detecting J-coupling.

Detection of J-Coupling Using Atomic Magnetometer

NIST Inventors
John Kitching
Nuclear magnetic resonance (NMR) is a powerful tool for determining molecular structure and properties. Our invention provides for the direct detection of hetero- and homonuclear scalar coupling in a zero-field or low-field environment using an optical atomic magnetometer. It provides NMR without
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
The NIST Compact Atomic Magnetometer 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 than one propagation direction permits longitudinal optical pumping of the
Chip-scale atomic magnetometers arranged in an array around a human head to detect brain magnetic fields.

Atomic Magnetometer and Method of Sensing Magnetic Fields

NIST Inventors
John Kitching and Vladislav Gerginov
NIST has made long-awaited advances in the creation of magnetometers and in detecting magnetic fields. The chip-size NIST atomic magnetometer has at least one sensor head void of extraneous metallic components, electrical contacts, or electrically conducting pathways. This novel sensor contains an
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