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Search Patents

Displaying 76 - 100 of 280
Calibration Apparatus And Calibrating A Laser Doppler Vibrometer Thumbnail

Calibration Apparatus And Calibrating A Laser Doppler Vibrometer

NIST Inventors
Michael Gaitan , Benjamin Reschovsky and Akobuije Chijioke
A new approach to characterize the performance of a laser Doppler vibrometer (LDV). The method uses two acousto-optic modulators to frequency shift the light from an LDV by a known quantity to create a synthetic velocity shift that is traceable to a frequency reference. Results are presented for

Quantum Flow Cytometer

NIST Inventors
Sergey Polyakov and Ivan Burenkov
A quantum flow cytometer for detecting an analyte with photon-number statistics includes: a flow cytometer that: receives a pump light in a first direction; receives an analyte flow comprising the analyte in a second direction; and produces scattered light from scattering the pump light by the

Methods For Electrically Charging Nanocrystals At Very Large Areas

NIST Inventors
Babak Nikoobakht
Methods are disclosed for uniformly charging nanocrystals. Using these methods large area interfaces per nanocrystal can be formed for electrically powering or operating nanocrystals. The formed metal- interfaces, including metal- semiconductor and semiconductor- semiconductor, are structurally

Body Cube And Process For Culturing Tissue

NIST Inventors
Mandy B. Esch, PhD
A body cube for culturing tissue that includes: an organ chip holder; and a body barrier chip and a first body organ chip disposed in the organ chip holder, the first body organ chip including a first cell culture chamber that receives cell culture medium and produces a first tissue in the first

Synchronizer And Synchronizing Transfer Over An Optical Link

NIST Inventors
Laura Sinclair , William C. Swann and JD Deschenes
A synchronizer for synchronizing transfer over an optical link includes a frequency reference oscillator; a tracking optical timing source; a tracking comb signal; a signal processor-controller; a comb timing discriminator; a clock frequency comb; a bidirectional terminal; a time-frequency offset

Dry Prelithiation Of Electrode Materials For Lithium Batteries And Supercapacitors By Controlled Dose Low Energy Implantation Of Lithium Ions

NIST Inventors
Christopher Soles , Vladimir Oleshko and Jabez J McClelland
In this disclosure, we describe a method of creating new and improved battery electrodes by doping conventional battery electrode materials with dry lithium (Li+) ions, using ion implantation techniques under vacuum. This dry "prelithiation" step will both (a) increase the amount of active Li+ in
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

Fiber-To-Chip Coupler

NIST Inventors
Jeff Shainline and Saeed Khan
A fiber-to-chip coupler includes a substrate, a waveguide on a top surface of the substrate, an optical fiber axially aligned to the waveguide, and a cap. The waveguide has a uniform region with uniform width and a tapered-waveguide region having a width that adiabatically increases from a minimum

Infrared Thermal Desorber And Performing Infrared Thermal Desorption

NIST Inventors
Matthew E Staymates and Thomas P. Forbes
An infrared thermal desorber includes a desorption housing; an infrared source receiver that receives an infrared emission source; an infrared absorber receiver that receives an infrared absorber, such that the infrared absorber receiver produces thermal energy emission; an analyte target receiver
Embodiments of spin-multiplexed near- and deep-UV metaholograms.

Low-loss Metasurface Optics For Deep UV

NIST Inventors
Henri Lezec and Wenqi Zhu
In this invention, we employ a novel approach to construct high-performance optical elements operating in the UV and deep-UV regime. Our technology is based on metasurfaces, where we design nanoantennas with sizes a fraction of the scale of the wavelength of UV light and arrange them over a planar

Physiologically Stable Fluorophore And Performing Fluorescence Probing

NIST Inventors
Jeremiah Woodcock and Professor Douglas M. Fox
A physiologically stable fluorophore includes a terminal moiety including a terminal reactive site that reacts with a reactive group of a substrate; a stability linker covalently bonded to the terminal moiety; and a bridge moiety covalently bonded to the stability linker such that the stability

Photonic Resonator Analyzer And Characterizing A Photonic Resonator

NIST Inventors
Zeeshan Ahmed
We describe a method for distinguishing optical modes of a resonator based on the characterization of the temperature sensitivity of a mode’s resonance frequency and its dispersion characteristics. This method requires an interrogator (made up of a tunable laser, broadband light source, frequency
An empty petri dish with two optical fibers, illustrating one version of the researchers’ experiment. The left-hand fiber (usually shining infrared light, but depicted here as visible red light) is a temperature sensor. The top fiber shines green, red or blue light into the petri dish to adjust the signal that the temperature sensor measures.

PH Photothermal Spectrometer And Performing PH Photothermal Spectroscopy

NIST Inventors
Zeeshan Ahmed
A device that uses multiple wavelengths (colors) of light to probe the pH-dependent changes in absorbance of pH-sensitive dye by determining the difference in temperature rise due to differences in light absorbance at different colors. The absorbed light is thermalized, resulting in an increase in
image for US20200348841A1

A Data Structure for Integrity Protection with Erasure Capability

NIST Inventors
D. Richard Kuhn
Provided is a process including: initializing a data block matrix; making supra-diagonal nodes that include at most one more node than sub-diagonal nodes; making a hash nodes with a hash sequence length that is proportional to a number of nodes in the row or column of nodes in which the hash node is

Method And Apparatus For Optimal Dynamic Spectrum Access In LTE Systems

NIST Inventors
Anirudha Sahoo and Timothy A. Hall
A method and apparatus for optimal dynamic spectrum access (DSA) by a Secondary User (SU) in a Primary User (PU) LTE network is proposed. The cumulative hazard function from Survival Analysis is used to determine the probability of an SU successfully transmitting over a certain number of Physical

Self-Referenced Ambient Radiation Thermometer

NIST Inventors
Howard W. Yoon
In this work, we describe the construction and characterization of an Ambient-Radiation Thermometer (ART) which can measure non-contact temperatures from -50 deg C to 150 deg C. To increase the long-term stability of the responsivity, optical components within the field-of-view of the detector and

Closed-loop Controlled Chemical Apparatus

NIST Inventors
Arvind Balijepalli , Curt A. Richter and Son T. Le
A closed-loop controlled chemical apparatus includes: a compound sensor including: an analyte sensor and that: produces, by the analyte sensor, a voltage signal; a reference sensor in electrical communication with the analyte sensor; a transistor including a gate terminal such that a drain current
Lithium magneto-optical trap-based ion source (Li MOTIS).

Prelithiated Lithium Ion Battery And Making A Prelithiated Lithium Ion Battery

NIST Inventors
Christopher Soles , Vladimir Oleshko and Jabez J McClelland
The proposed method allows the injection of Li+ ions directly into the material and does not need the wet chemical or electrochemical prelithiation with liquid electrolytes and metallic lithium foils, sacrificial additives, donors, or mechanical mixing with SLMP, inducing consumption of lithium for
Displaying 76 - 100 of 280
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