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Physical Measurement Laboratory

Patents

Searches Patent Title, Abstract, Body, Technology Type, and NIST Inventors
Displaying 126 - 141 of 141

Cryogenic Thermometer Based On A Two-Level System (TLS)

NIST Inventors
Michael Vissers , Jordan Wheeler and Maxime Malnou
We have invented a new type of cryogenic thermometer for use at temperature below 1 Kelvin. The device consists of a superconducting resonator with dielectric two-level systems (TLS) material deposited or naturally formed on the surface. The temperature is read out by measuring the resonance

DNA Nanotechnology-Based Biomarker Measurement Platform

NIST Inventors
Arvind Balijepalli and Jacob Majikes
We developed a new approach that utilizes the precise addressability of DNA nanotechnology constructs to allow quantitative biomolecule sensing with high sensitivity, specificity and reproducibility. Novel approaches to engineering DNA nanostructures allow the realization of tunable gain elements

High-Performance Ultaviolet Optical Elements Based On Metasurface Technology

NIST Inventors
Henri Lezec and Wenqi Zhu
Shrinking conventional optical systems to chip-scale dimensions will benefit custom applications in imaging, displaying, sensing, spectroscopy, and metrology. Towards this goal, metasurfaces — planar arrays of subwavelength electromagnetic structures that collectively mimic the functionality of

A Method Of Mode Identification In 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

Method And Process For Tantala Integrated Nonlinear Photonics

NIST Inventors
Scott Papp , David Carlson and Kartik Srinivasan
Integrated photonics that enable nonlinear optical processes are important for numerous applications, including precision metrology; microresonator frequency comb generation; optical signal generation and processing; sensing, positioning, and navigation; and generation and manipulation of quantum

Multiplexed Amplitude Modulation Fluorometry

NIST Inventors
Anthony J. Kearsley , Gregory A Cooksey and Paul Patrone
Improving accuracy of cytometers is challenging because optical configuration, flow control methods, and calibration issues make it difficult to characterize geometric factors associated with signal collection. State-of-the-art tools only collect a small solid angle of emitted light, so that minor

Qubit Gate And Producing A Generalized Controlled-Not Quantum Gate

NIST Inventors
Adam Kaufman and Alexey Gorshkov
Electric dipoles such as Rydberg atoms and polar molecules are among the most promising candidates for building a quantum computer. We propose a protocol that uses long-range dipole-dipole interactions in these systems to quickly implement a generalized controlled-not (CNOT) quantum gate, in which

Serial Cytometry

NIST Inventors
Gregory A Cooksey , Paul Patrone and Anthony J. Kearsley
Flow cytometers can make thousands of single-cell measurements per second, but the limited ability to quantify uncertainty in individual measurements reduces their effectiveness for characterizing biomarker distributions, discriminating cell populations, and detecting rare events. To facilitate

Superconducting Vortex-Based Microwave Circulator

NIST Inventors
Jacob Taylor
This invention consists of a design model of a microwave circulator reliant on the motion of a single persistent-current vortex in a small superconducting circuit of Josephson junctions to induce nonreciprocal behavior. The model indicates the capability of enabling a small-scale, moderate-bandwidth

System And Method For Monitoring Ultraviolet Radiation Bioremediation

NIST Inventors
Yaw S. Obeng
Healthcare-associated infections (HAIs) impose great burdens on public health; they are probably some of the toughest and the most pressing healthcare problems in acute-care hospitalization. Ultraviolet-C illumination effectively decontaminate surfaces to reduce the population of many HAI-inducing

Timing-Based Computer Architecture Systems And Methods

NIST Inventors
Advait Madhavan , Mark D. Stiles and Matthew Daniels
Tropical algebra is an emerging field of mathematics concerned with graph theory, control theory, and certain optimization problems, especially in discrete event systems. We developed a novel computer circuit called a tropical state machine that uses signal timing and the physics of nanodevices to