Patents

Patents listed here reflect only technologies patented from FY 2018-present. To view all of NIST's patented technologies, visit the NIST pages on the Federal Laboratory Consortium website.

Displaying 1 - 9 of 9

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

PH Photothermal Spectrometer And Performing PH Photothermal Spectroscopy

NIST Inventors

Zeeshan Ahmed

A pH photothermal spectrometer includes a container that receives an analyte medium and pH-sensitive chromophore. An excitation fiber and optical thermometer are disposed in the container. The optical thermometer include a light receiver disposed on a temperature detector fiber.

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

Deformometer for Determining Deformation of an Optical Cavity Optic

NIST Inventors

Zeeshan Ahmed , Kevin O Douglass , Stephen Eckel , Patrick Egan and Jay H. Hendricks

A superconducting waveform synthesizer produces an arbitrary waveform and includes an encoder that produces a bitstream; a pattern generator that produces a current bias pulse from the bitstream; a Josephson junction that produces a quantized output pulse from the current bias pulse; and a converter

Photonic Calorimeter and Process for Performing Calorimetry

NIST Inventors

Ronald Tosh , Zeeshan Ahmed , Ryan P. Fitzgerald and Nikolai Klimov

A photonic calorimeter converts ionizing radiation dose to heat and includes: a radiation absorber, a temperature compensator disposed within the radiation absorber, a compensation waveguide, a compensation resonator, a compensation resonator, a thermal isolator on which the radiation absorber is

Photonic Dosimeter and Process for Performing Dosimetry

NIST Inventors

Ronald Tosh , Zeeshan Ahmed , Ryan P. Fitzgerald and Nikolai Klimov

A photonic dosimeter accrues cumulative dose and includes: a substrate; a waveguide disposed on the substrate and that: receives a primary input light; transmits secondary input light from the primary input light to a dosimatrix; receives a secondary output light from the dosimatrix; and produces

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

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

A Method Of Mode Identification In Photonic Resonator

NIST Inventors

Zeeshan Ahmed

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