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Physical Measurement Laboratory

News and Updates

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Simultaneous Imaging of Ferromagnetic and Ferroelectric Domains

October 1, 2014

An international team led by researchers from the NIST Center for Nanoscale Science and Technology have discovered a new way to simultaneously image both the

Photons by the Numbers

September 25, 2014

A NIST team is at work on what promises to be one of the world's most accurate methods for generating a specified number of photons, and has devised a method to

Calibrating Cancer Radiotherapy Beams Using Light and Sound

September 17, 2014

Doctors shrink tumors with radiation therapy, but a badly calibrated beam can cause serious complications. Scientists in NIST's Radiation Physics Division in

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

Three's a Charm: NIST Detectors Reveal Entangled Photon Triplets

September 15, 2014

Researchers at the University of Waterloo in Canada have directly entangled three photons in the most technologically useful state for the first time, thanks in

Measuring Absorption Maps and Spectra of Plasmonic Resonators with Nanoscale Resolution

September 10, 2014

Researchers from the NIST Center for Nanoscale Science and Technology (CNST) and the University of Maryland have for the first time used photothermal induced

Polonium's Most Stable Isotope Gets Revised Half-Life Measurement

September 9, 2014

Scientists at the National Institute of Standards and Technology (NIST) have determined* that polonium-209, the longest-lived isotope of this radioactive heavy

NIST Helps Develop New Standard for Microsensor Technology

September 9, 2014

The National Institute of Standards and Technology (NIST) has contributed to the development of a new standard for defining the performance of micromechanical

Scientists Shed Light on Organic Photovoltaic Characteristics

September 2, 2014

Photovoltaic devices, also known as solar cells, produce electrical power when exposed to light, and that technology has enabled a fast-growing industry. The

Optical Microscope Technique Confirmed as Valid Nano-Measurement Tool

August 26, 2014

Recent experiments have confirmed* that a technique developed several years ago at the National Institute of Standards and Technology (NIST) can enable optical

EUV Calibrations for Satellite Sensors

August 25, 2014

Thanks to precision calibration measurements recently performed at NIST, satellites may soon be looking at sunlight with new and improved vision. On July 22

JILA Team Finds First Direct Evidence of 'Spin Symmetry' In Atoms

August 21, 2014

Just as diamonds with perfect symmetry may be unusually brilliant jewels, the quantum world has a symmetrical splendor of high scientific value. Confirming this

Guidelines for Enhancing Solar Cells Using Surface Plasmon Polaritons

August 15, 2014

Researchers from the NIST Center for Nanoscale Science and Technology (CNST) have established guidelines for using surface plasmon polaritons (SPPs) to improve

Scale-Model Smokestack To Study GHG Emissions Monitoring

August 15, 2014

Construction is nearly complete on one of the world's more unusual precision measurement facilities: A 50 meter horizontal smokestack located on NIST's

NIST Therapy for Ultraviolet Laser Beams: Hydrogen-treated Fibers

August 11, 2014

To make a better optical fiber for transmitting laser beams, the first idea that comes to mind is probably not a nice long hydrogen bath. And yet, scientists

Beyond Six Nines: Ultra-enriched Silicon Paves the Road to Quantum Computing

August 11, 2014

Using a relatively straightforward technique, a team of NIST researchers has created what may be the most highly enriched silicon currently being produced. The

NIST Ion Duet Offers Tunable Module for Quantum Simulator

August 6, 2014

Physicists at the National Institute of Standards and Technology (NIST) have demonstrated a pas de deux of atomic ions that combines the fine choreography of

It's a Dynamic World, Now NIST Can Help You Measure Its Changes

August 1, 2014

Crash-test dummies, yarn-spinning machines and steel girders in bridges. What do they have in common? Look inside them all and you find transducers, devices

'Comb on a Chip' Powers New NIST/Caltech Atomic Clock Design

July 22, 2014

Researchers from the National Institute of Standards and Technology (NIST) and California Institute of Technology (Caltech) have demonstrated a new design for

Fill 'er Up: NIST Develops Prototype Meter Test for Hydrogen Refueling Stations

July 21, 2014

To support the fair sale of gaseous hydrogen as a vehicle fuel, researchers at the National Institute of Standards and Technology (NIST) have developed a

NIST Shows Ultrasonically Propelled Nanorods Spin Dizzyingly Fast

July 21, 2014

Vibrate a solution of rod-shaped metal nanoparticles in water with ultrasound and they'll spin around their long axes like tiny drill bits. Why? No one yet

A phantom (life-size dummy) in the scanner

Backscatter Body Scan Redux

July 21, 2014

Airline passengers have already said bon voyage to the controversial backscatter x-ray security scanners, pulled from U.S. airports in 2013 over concerns about

Manipulating Magnetic Field Effects in Organic Semiconductors

July 10, 2014

Changing the polarity of the magnetic field response of a material one thousandth the width of a human hair may seem like the stuff of science fiction, but that

New NIST Metamaterial Gives Light a One-Way Ticket

July 1, 2014

The light-warping structures known as metamaterials have a new trick in their ever-expanding repertoire. Researchers at the National Institute of Standards and

NIST researchers are gathering skin reflectance data to establish the variation found in human tissue in order to develop reference standards for hyperspectral imaging applications.

Seeing Your True Colors: Standards for Hyperspectral Imaging

July 1, 2014

Today, doctors who really want to see if a wound is healing have to do a biopsy or some other invasive technique that, besides injuring an already injured

Rush a Light Wave and You'll Break Its Data, say NIST Scientists

May 29, 2014

Quantum information can't break the cosmic speed limit, according to researchers from the National Institute of Standards and Technology (NIST) and the

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