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Search Patents

Displaying 1 - 19 of 19
Description of Patent 11,165,505

Quantum Atomic Receiving Antenna and Quantum Sensing of Radiofrequency Radiation

NIST Inventors
Josh Gordon and Christopher L. Holloway
Patent Description The invention is a new type of receiving antenna that uses optically excited atoms confined to a vapor cell to sense the strength, direction, and polarization of incoming RF radiation over the frequency range of under 1 GHz to about 1 THz (heretofore this frequency range will be
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
Patent Description Rydberg atoms have been shown to be very useful in performing absolute measurements of the magnitude of a radio frequency (RF) field using electromagnetically induced transparency (EIT). However, until this invention, there has been less success in using Rydberg atoms for the
Patent Images and description for 10,955,617

High-Resolution Photonic Thermometer Article

NIST Inventors
Kevin O Douglass , Zeeshan Ahmed and Nikolai Klimov
Patent Description NIST has created a method that sense temperature variations on a µK-level using an on-chip integrated passive photonic device that features a high-quality factor nanocavity. The method includes the (i) improved design of nanobeam photonic crystal cavity, (ii) specialized fiber­

Photonic Calorimeter and Process for Performing Calorimetry

NIST Inventors
Ronald Tosh , Zeeshan Ahmed , Ryan P. Fitzgerald and Nikolai Klimov
Patent Description The invention i s a photonic device whose resonance characteristics (such as, quality factor, peak position, and free spectral range) change in a predictable way in response to the interaction of radiation with the sensor and/or its surroundings. The invention can be used in an
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
Patent Description 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
A line drawing of the protector for photon detector

Protector for Photon Detector

NIST Inventors
David M. Rutter
Patent Description Avalanche photodiodes (APDs) are highly sensitive single photon counters and are used in fluorescence lifetime measurements, medical devices, safety equipment and optical communication devices among many other applications. They function by placing a high voltage across an
Exploded schematic shows line drawings of five layers inside the optofluidic flow meter.

Optofluidic Flow Meter

NIST Inventors
Zeeshan Ahmed and Gregory A Cooksey
The NIST optical flow meter uses a photonic sensor to detect pressure changes inside a microfluidic channel, which is then used to calculate volumetric flow rates. It provides on-chip assessment of flow and heat transfer resulting in improvement in fluid metrology and advances in biological sensing.
A disk-shaped device is smaller than the half-dollar coin underneath it.

Smart Mirror

NIST Inventors
Aly Artusio-Glimpse , John H. Lehman , Michelle Stephens , Nathan A Tomlin and Paul A. Williams
This invention measures the power of a laser beam by detecting the displacement caused by photon pressure on a mirrored surface.

Process for Forming a Transition Zone Terminated Superconformal Filling

NIST Inventors
Daniel Josell and Thomas P. Moffat
Patent Description This invention is an electrodeposition process that permits nickel filling of features such as pinholes in metal tubing. The process uses a deposition rate suppressing additive (“suppressor” that yields “critical behavior” such that deposition occurs at more negative potentials (
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
This invention is an electrical-substitution radiometer (ESR) — a thermal detector for optical and infrared radiation — based on a novel configuration of arrays of vertically aligned carbon nanotubes.
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
NIST scientists have devised a radically new method of determining laser power by measuring the radiation pressure exerted by a laser beam on a reflective surface.
Photonic thermometer packages

Optical Temperature Sensor

NIST Inventors
Zeeshan Ahmed , Stephen Semancik , Jacob Taylor and Gregory F. Strouse
The photonic temperature sensor relies on ultra-sensitive, frequency-based measurements of the effect of heat on the dimensions and predominant thermo-optic properties of the photonic resonator.
Diagram shows ethanol, shields, vapor cell, reservoir, heater.

Detection of J-Coupling Using Atomic Magnetometer

NIST Inventors
John Kitching
NMR endures as one of the most powerful analytical tools for detecting chemical species and elucidating molecular structure. Zero-to-ultralow-field NMR spectroscopy is a new, potentially portable and cost-effective modality to determine the molecular structure and properties of microfluidic chemical samples.
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
Gyroscopes sense rotation. In combination with magnetometers, gyroscopes are used many applications. The NIST invention enables multitasking measurement capabilities and is the first to demonstrate simultaneous measurement of rotation, rotation angle and acceleration with a single source of atoms.
Fiber magnetometer

Chip-Scale Atomic Magnetometer

NIST Inventors
John Kitching and Vladislav Gerginov
Measurement of faint magnetic fields is critical to many applications, including medical diagnostics, but conventional technologies are often large, complex and expensive. NIST’s chip-scale atomic magnetometer is highly compact and readily fabricated using familiar semiconductor techniques.
Displaying 1 - 19 of 19