U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Physical Measurement Laboratory

Patents

Searches Patent Title, Abstract, Body, Technology Type, and NIST Inventors
Displaying 1 - 25 of 98

QUANTUM-ENABLED FLOW CYTOMETER

NIST Inventors
Sergey Polyakov and Ivan Burenkov
patent description We invented a flow cytometer that can self-calibrate in an absolute way that can reach the sensitivity for quantification and enumeration of a single and small number of biological markers per a biological entity. The cytometer uses a photon-number resolving detector (or a

OPTICAL REFRACTION BAROMETER

NIST Inventors
Kevin O Douglass , Stephen Eckel , Jacob Edmond Ricker and Jay H. Hendricks
patent description In short a method to improve upon the current FLOC system, for measuring pressure based on refractivity changes, by using a single laser and direct measure of the difference between the lasers without heterodyne measurement.

QUANTUM WAVEGUIDE INFRARED PHOTODETECTOR

NIST Inventors
Eric Stanton
patent description The QWIP was first demonstrated in 1987 [1] and consistent research since then has improved the QWIP detection efficiency, but only for surface normal detection. Development of the QWIP was originally intended for infrared focal plane arrays suitable for infrared cameras. One

SINGLE QUANTUM EMITTER SINGLE PHOTON SOURCE AND PRODUCING A SINGLE PHOTON STREAM

NIST Inventors
Marcelo Davanco
patent description The invention is an integrated photonic device which allows production of a pure stream of on-chip waveguide-bound indistinguishable single-photons from the resonance fluorescence of a single quantum emitter embedded in a multimode on-chip waveguide, for which the quantum emitter

Ultrafast Electro-optic Laser

NIST Inventors
Scott Papp , Scott Diddams and David Carlson
patent description Our invention is for an ultrafast light source that produces femtosecond pulses with sub-cycle timing jitter using electro-optic switching of a continuous-wave (cw) laser. The apparatus is composed of the following key elements: 1) an electro-optic (EO) frequency comb, 2) a

PHOTOACOUSTIC PHOTON METER AND PROCESS FOR MEASURING PHOTON FLUENCE

NIST Inventors
Kimberly A. Briggman , Chris Yung , Jeeseong C. Hwang and John H. Lehman
patent description This invention pertains a concept of a carbon nanotube (CNT)-based integrated sensor which can measure spatial and spectral photon fluence (energy per unit area or volume in the spatial or spectral domain), temperature, and pressure in turbid media and can evaluate performance of

NON-VACUUM, NON-CONTACT SPINNER WAFER CHUCK

NIST Inventors
Glenn Holland
patent description Disclosed is a non-vacuum, non-contact spinner wafer chuck for receiving and indexing a wafer, the non-vacuum, non-contact spinner wafer chuck comprising: a basal member comprising: a wafer-side surface; and a spinner-side surface opposing the wafer-side surface; a fastener
Patent description for Critical-Dimension Localization Microscopy

Apparatus for Critical-Dimension Localization Microscopy

NIST Inventors
Samuel M. Stavis and Craig Copeland
Patent Description Critical-Dimension Localization Microscopy (CDLM) is a new calibration and measurement method that establishes SI-traceability of optical microscopy and enables subnanometer localization accuracy over a submillimeter field. NIST fabricated arrays of sub-resolution apertures in an
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

TRIPLE POINT IMMERSION CELL ARTICLE

NIST Inventors
Jay Nanninga and Weston L. Tew
patent description The invention is an integrated system for the realization of a single non-metal triple point via immersion-type fixed point cells. The base design can accommodate immersion-type triple-point cells of either argon, krypton, or xenon, or any other non-metal fixed point within an

JOSEPHSON JUNCTION CIRCUITS FOR SINGLE-PHOTON OPTOELECTRONIC NEURONS AND SYNAPSES

NIST Inventors
Jeff Shainline , Adam McCaughan , Sae Woo Nam and Manuel Castellanos Beltran
patent description We recently invented and patented a new type of hardware for neuromorphic computing (Phys. Rev. Applied, 7, 034013 (2017) (attached to email). The key ideas are to use integrated photonic devices for massive connectivity nd superconducting electronics for efficient memory and

PHOTONIC QUANTUM DEW POINT SENSOR

NIST Inventors
Tobias Herman , Nikolai Klimov and Thomas Purdy
patent description (1) Disclosed is a photonic quantum dew point sensor for determining a dew point of an analyte, the photonic quantum dew point sensor comprising: a common substrate; a photonic dew sensor disposed on the common substrate and exposed for direct contact with the analyte; a photonic
Image for 10,816,325

Deformometer for Determining Deformation of an Optical Cavity Optic

NIST Inventors
Zeeshan Ahmed , Kevin O Douglass , Stephen Eckel , Patrick Egan and Jay H. Hendricks
Patent description NIST has invented a pulse quantizer that uses arrays of one or more Josephson junctions to create a pulse voltage output that is immune to differential pulse timing shifts. When the output pulse patterns are used to encode a waveform, for example, the waveform will be free from
image for 10,837,828

Non-attenuating Meter for Determining Optical Energy of Laser Light

NIST Inventors
Joshua Hadler , John H. Lehman , Matthew Spidell and Paul A. Williams
Patent description NIST has invented a device that permits full and accurate characterization of a laser beam without attenuating the laser beam or perturbing its direction. The unique three-mirror design allows the absolute power to be measured via radiation pressure (from the force on one mirror)