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Physical Measurement Laboratory

News and Updates

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2023 NIST Internship Reflections

September 28, 2023

During the summer of 2023, the NIST Physical Measurement Laboratory’s ( PML) Office of Weights and Measures ( OWM) hosted four undergraduate students who were

NIST SP2200-03: An Evolving Regulatory Landscape for Commercial Electric Vehicle Fueling

September 28, 2023

As part of NIST OWM's Special Publication 2200 series on Legal Metrology, NIST SP 2200-03 An Evolving Regulatory Landscape for Commercial Electric Vehicle

Working Their Thermal MagIC: Digging Into the Details of an Ambitious New ‘Thermometry Camera’

September 26, 2023

Thermometers can do a lot of things: measure the temperature at the center of your perfectly braised chicken or tell you whether to keep your child home from

Illustration of a pair of tweezers surrounding a beam of light that illuminates a line of atoms, each with an analog clock face in the center and an up and down arrow pointing through it.

New Spin-Squeezing Techniques Let Atoms Work Together for Better Quantum Measurements

September 25, 2023

Opening new possibilities for quantum sensors, atomic clocks and tests of fundamental physics, JILA researchers have developed new ways of “entangling” or

Imaging the Elusive Skyrmion

September 25, 2023

Scientists at the National Institute of Standards and Technology (NIST) with colleagues elsewhere have employed neutron imaging and a reconstruction algorithm

Metric Week 2023: Seven Days of SI Fun

September 20, 2023

National Metric Week (October 8 to 14, 2023) is an opportunity to underscore the usefulness of metric system measurements, formally known as the International

NIST chip containing a single-photon detector made of superconducting nanowires. Four chips like this were used in the experiment that entangled three photons.

Unity in the Photon Community

September 12, 2023

The creation and detection of single photons (the smallest units of light) has grown in a few decades from an experimental laboratory pursuit to an important

Detangling Light-based Thermometers with Combs

August 29, 2023

Photonic thermometers, which measure temperature using light, have the potential to revolutionize temperature measurement by being faster, smaller, and more

Four researchers pose standing in a lab, smiling and wearing safety glasses, surrouded by wires and other electronics.

NIST Demonstrates a New ‘Primary Standard’ for Measuring Ultralow Pressures

August 10, 2023

Chip manufacturing, gravitational wave detectors and quantum computers could all benefit from better ways to measure a vacuum.

Big Improvements in New Probe Design for Smokestack Emission Monitoring

July 31, 2023

Each year, to meet requirements set by the Environmental Protection Agency (EPA), coal-fired power plants must have their smokestack emissions audited by an

Two people wearing coveralls in a "clean room" lab look up at a disk-shaped object that one of them is holding.

Spotlight: Detecting the Inner Workings and Origins of Our Universe With NIST Researcher Tammy Lucas

July 20, 2023

NIST researcher Tammy Lucas is building tools to help astronomers and cosmologists look back in time to the earliest moments of our universe — and see what we

NIST researcher Jared Strait with a prototype hand-held KDFR

MEASURING UP: Kibble Dynamic Force Reference

July 18, 2023

Static force, such as the weight of a person standing motionless on a bathroom scale or the force that an office full of equipment exerts on a high-rise floor

New NIST Measurements Aim to Advance and Validate Portable MRI Technology

July 17, 2023

A new wave of smaller, less expensive MRI systems promises to expand the delivery of health care and the capabilities of medicine.

white matter mimic in the bottom half of the artificial cranium

Lessons from an Experimental Brain Phantom

July 12, 2023

Researchers at the National Institute of Standards and Technology (NIST) and colleagues have developed a novel, anatomically accurate reference model of the

Sam Oberdick and Gary Zabow pose for a picture, standing together with lab equipment in the background.

Spotlight: The Creative Minds Working Behind the Scenes on Agents of MRI Contrast

July 7, 2023

You might not recognize these two faces from such NIST social media hits as “microprinting with candy” and “molds for microparticles,” but they were behind that

Illustrated molecules, represented by red spheres and blue spheres connected by a white cylinder, fill a dark blue field. Alongside the molecules are electrons, represented by light blue spheres with directional arrows pointing through them.

Why Does Matter Exist? Roundness of Electrons May Hold Clues

July 6, 2023

JILA physicists make record-breaking measurement of a key electron property.

New NIST Licensing Opportunity Teems with Potential Applications

July 5, 2023

Max Planck, one of the Twentieth Century’s most eminent physicists, observed, "An experiment is a question that science poses to Nature, and a measurement is

NIST-Designed Photonic Chip Transforms a Single Beam of Light Into Multiple Beams, Each With a Panoply of Different Properties

June 30, 2023

Researchers at the National Institute of Standards and Technology (NIST) have devised a photonic circuit on a chip that transforms a single incoming beam of

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