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Physical Measurement Laboratory

News and Updates

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Million-Pound Deadweight Machine Officially Open for Business

June 2, 2016

The last few bolts were tightened just weeks ago – by hand. Now fully restored, NIST's 4.45 meganewton (one million pounds-force) deadweight machine – the...

SF6 Shows Promise as Mercury Substitute

May 27, 2016

Elemental mercury – which is being phased out of commercial thermometers worldwide due to safety concerns – may also be replaced as a temperature reference...

3D Laser Scanner Runoff Pushes New Standard Towards the Finish Line

May 25, 2016

Update: The work that was described in this article led to the publishing of the ASTM E3125-17 standard in December 2017. Large-volume 3D laser scanners play...

Powered by Quantum Cycles: Cold-Atom Pump

May 25, 2016

By manipulating the behavior of particles at a quantum level, scientists at the Joint Quantum Institute (JQI, a research partnership of NIST and the University...

This JILA instrument uses a frequency comb to detect large, complex molecules based on the precise frequencies, or colors, of light they absorb.

JILA Extends Laser 'Combing' Method to Identify Large, Complex Molecules

May 4, 2016

BOULDER, Colo. – JILA physicists have extended the capability of their powerful laser "combing" technique to identify the structures of large, complex molecules...

CNST Releases the Spring 2016 Edition of the CNST News

April 27, 2016

The NIST Center for Nanoscale Science and Technology (CNST) is pleased to announce the release of the Spring 2016 edition of The CNST News. This quarterly...

New Chip-Based Sensor Finds Power in Versatility

April 26, 2016

Whether you're using a landline or cell phone, there's a good chance that the signal spends at least some time traveling over fiber-optic cables. To ensure that...

NIST's Million-Pound Weight Stack Restoration is Complete

April 25, 2016

It's official: NIST's 4.45-million newton (equivalent to one million pounds-force) deadweight machine – the largest in the world – is back in one piece after a...

Head to Head: Photonic Pressure Sensors vs. Mercury-Based Standard

April 21, 2016

When a team of researchers at NIST's Physical Measurement Laboratory (PML) first tested a new kind of pressure sensor two years ago, initial results showed it...

NIST Could Help Keep Sequestered Carbon From Blowin' in the Wind

April 20, 2016

Capturing carbon dioxide gas and storing it underground is a promising strategy for reducing greenhouse gases in the atmosphere. Scientists at the National...

False-color scanning electron micrograph of a nanophotonic frequency converter

New Nanodevice Shifts Light's Color at Single-Photon Level

April 18, 2016

Converting a single photon from one color, or frequency, to another is an essential tool in quantum communication, which harnesses the subtle correlations...

new instrument for accelerometer testing

Precision Testing for MEMS Accelerometers

April 8, 2016

They activate airbags. Keep aircraft correctly positioned in flight. Detect earthquakes or sudden vibrations in failing machinery. Guide military hardware...

Newly Patented NIST Technique Creates Precisely Sized Nanocontainers Useful for Drug Delivery

April 7, 2016

What if doctors could deliver anti-cancer drugs directly to tumors without making patients sick? Bringing this dream of targeted drug delivery closer to reality...

Improving CD-AFM Measurements from the Tip Down

March 31, 2016

As the sizes of computer chips in electronic devices continue to shrink, traditional measurement tools (e.g., microscopes utilizing visible light) are no longer...

Neutron Microscope: Waiting for the Lens to Come

March 30, 2016

When the world's first workhorse neutron microscope – currently being designed and built by a collaboration including NIST's Physical Measurement Laboratory...

Multilingual Circuit: NIST's "Optomechanical Transducer" Links Sound, Light and Radio Waves

March 28, 2016

Researchers working at the National Institute of Standards and Technology (NIST) have developed a "piezo-optomechanical circuit" that converts signals among...

NIST Develops First Widely Useful Measurement Standard for Breast Cancer MRI

March 23, 2016

Researchers at the National Institute of Standards and Technology (NIST) have developed the first widely useful standard for magnetic resonance imaging (MRI) of...

Images of yeast cells and silver dendrites.

New Microwave Imaging Approach Opens a Nanoscale View on Processes in Liquids

March 15, 2016

U.S. government nanotechnology researchers have demonstrated a new window to view what are now mostly clandestine operations occurring in soggy, inhospitable...

NIST Creates Fundamentally Accurate Quantum Thermometer

March 15, 2016

Better thermometers might be possible as a result of a discovery at the National Institute of Standards and Technology (NIST), where physicists have found a way...

New Tool for Breast Cancer Screening

March 14, 2016

A little over three years ago, NIST scientist Katy Keenan came back from a conference with an ambitious idea: to improve the quality of magnetic resonance...

Not So Fast: Overlooked Resistance May Inflate Estimates of Organic-Semiconductor Performance

March 10, 2016

It's hardly a character flaw, but organic transistors—the kind envisioned for a host of flexible electronics devices—behave less than ideally, or at least not...

NIST's Internet Time Service Serves the World

March 8, 2016

The Internet Time Service operated by the National Institute of Standards and Technology (NIST) serves much of the Earth, with customers from around the globe...

Quantum Spin Squeezing Gets Real

February 26, 2016

Today's atomic clocks are ridiculously accurate. The best of them tell time so well that if they had been running since the Big Bang, by now they would not have...

Getting Hyperspectral Imaging Ready for the Rain Forest

February 24, 2016

Hyperspectral images allow humans to see what otherwise might be invisible. Unlike ordinary cameras, which record information in each of three broad color bands...

Vaccine Fridge Field Study 'Opens Doors' to New Standards

February 23, 2016

Recipients of an annual flu shot may be surprised to learn that there is currently no official standard for vaccine storage equipment in clinics, pharmacies...

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