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 - 6 of 6

An electro-optic frequency comb is spectrally translated via nanophotonics.

Nanophotonic Spectral Translation of Electro-Optic Frequency Combs

NIST Inventors

Jordan Stone and Kartik Srinivasan

The technology consists of an apparatus and process using an electro-optic frequency comb as the pump laser, used with a nonlinear microresonator to output one or more spectrally translated frequency combs in spectroscopy.

Serrodyne Frequency Shift Spectrometer and Serrodyne Frequency Shifting

NIST Inventors

Sean Bresler , John R. Lawall and Benjamin Reschovsky

Serrodyne modulation (i.e., using a sawtooth waveform to produce a linear phase chirp) is performed using an electro-optic phase modulator to provide the needed frequency shift.

Typical radiofrequency combs generated by a direct digital synthesizer (left two panels) and an arbitrary waveform generator (right two panels). The far more expensive arbitrary waveform generator produces combs that are only marginally flatter than the direct digital synthesizer. After normalization, both combs result in similar spectroscopic signal-to-noise ratios.

Direct Digital Chirp Synthesizer And Generating A Chirped Optical Frequency Comb

NIST Inventors

Benjamin Reschovsky

A new approach for electro-optic frequency comb generation, which overcomes the high cost, size, and power consumption of arbitrary waveform generators while offering higher frequency agility.

Optomechanical Ultrasound Detector And Performing Ultrasound Imaging

NIST Inventors

Thomas W. LeBrun and Jason J. Gorman

An optomechanical ultrasound detector includes: a micromirror substrate; a mechanical resonator that receives ultrasound waves, oscillates at resonator frequency f.sub.r, changes cavity length L.sub.c, and produces intra-cavity light; and an optical microcavity between the micromirror substrate and

Optomechanical Accelerometer And Performing Optomechanical Accelerometry

NIST Inventors

Jason J. Gorman and Thomas W. LeBrun

An optomechanical accelerometer includes: a fiducial mass for a microscale Fabry-Perot optical cavity; a proof mass for the microscale Fabry-Perot optical cavity, such that the proof mass oscillates in a displacement motion toward and away from the fiducial mass in response to acceleration of the

Diagram of the dual optical frequency comb spectrometer consisting of a single laser that is split into local oscillator, reference and probe legs to down-convert, interleave and normalize gas sample absorption signals.

Variable-Frequency Optical Combs, Heterodyne Sensor, and Process for Performing Spectroscopy

NIST Inventors

David F. Plusquellic , Kevin O Douglass , Joseph T. Hodges and Adam J. Fleisher

This invention uses lasers and modulators to create special light waves called “optical frequency combs” that can scan multiple chemical features instantly. These combs detect chemicals by analyzing how light changes as it interacts with different substances. It’s fast, accurate, and doesn’t need

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