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Physics

News and Updates

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Dehmer to Head NIST Physical Measurement Lab

April 19, 2013

Dr. Joseph L. Dehmer, a 40-year veteran of federal science research and administration, has been named Director of the Physical Measurement Laboratory (PML) of

A Primary Voltage Standard for the Whole World

April 4, 2013

PML researchers are on the verge of reaching a long-sought major goal: Providing the world with a programmable quantum voltage standard that has an uncertainty

Seeing the Oceans in Their True Colors

April 3, 2013

Much of what is known about the state of the Earth's oceans, and how they change over time, comes from satellite monitoring of reflected and thermally emitted

Don't Call It Vaporware: Scientists Use Cloud of Atoms as Optical Memory Device

April 3, 2013

Talk about storing data in the cloud. Scientists at the Joint Quantum Institute (JQI) of the National Institute of Standards and Technology (NIST) and the

Single Photon from a Quantum Emitter? It's a Matter of Timing...

April 3, 2013

Many systems envisioned for practical quantum information processing require the use of single, indistinguishable photons as carriers of information and logic

NIST Tests Underscore Potential Hazards of Green Laser Pointers

March 20, 2013

Using a low-cost apparatus designed to quickly and accurately measure the properties of handheld laser devices, National Institute of Standards and Technology

New NIST Microscope Measures Nanomagnet Property Vital to 'Spintronics'

March 14, 2013

Researchers at the National Institute of Standards and Technology (NIST) have developed a new microscope able to view and measure an important but elusive

NIST Mechanical Micro-Drum Used as Quantum Memory

March 13, 2013

One of the oldest forms of computer memory is back again—but in a 21st century microscopic device designed by physicists at the National Institute of Standards

New NIST Time Code to Boost Reception for Radio-Controlled Clocks

March 5, 2013

The National Institute of Standards and Technology (NIST) is changing the way it broadcasts time signals that synchronize radio-controlled "atomic" clocks and

NIST Quantum Refrigerator Offers Extreme Cooling and Convenience

March 5, 2013

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a solid-state refrigerator that uses quantum physics in micro- and

MRI: Contrast Agents of Change

March 5, 2013

Thanks to burgeoning progress in magnetic resonance imaging (MRI), it may soon be possible to track and study, in vivo and in real time, heretofore invisible

High Efficiency in the Fastest Single-Photon Detector System

February 19, 2013

A single photon may not seem like much of a catch. But detecting photons one-by-one with near-perfect reliability is formidably difficult. It is also an

Calculating Quantum Vacuum Forces in Nanostructures

February 7, 2013

One of the surprising predictions of quantum mechanics is that uncharged conductors can attract each other over small distances, even in empty space. While the

NIST Issues Call for Measurement Science and Engineering Research Grant Proposals

February 6, 2013

The National Institute of Standards and Technology (NIST) has issued a call for grant proposals for a broad range of potential research projects covering the

The circular patch of carbon nanotubes on a pink silicon backing is one component of NIST's new cryogenic radiometer, shown with a quarter for scale.

NIST's 'Nanotubes on a Chip' May Simplify Optical Power Measurements

January 24, 2013

The National Institute of Standards and Technology (NIST) has demonstrated a novel chip-scale instrument made of carbon nanotubes that may simplify absolute

DNA and Quantum Dots: All That Glitters is Not Gold

January 24, 2013

A team of researchers at the National Institute of Standards and Technology (NIST) has shown that by bringing gold nanoparticles close to the dots and using a

A Whole New Angle on Neutron Spin Analysis

January 18, 2013

For most Americans, neutron spin-polarization filter cells are a relatively rare topic of conversation. Yet these exotic devices are essential to instruments

Solid state lighting program produces solid benefits

January 9, 2013

A recently published, descriptive case study highlights the benefits of NIST's leadership in developing standards for solid state lighting.* "NIST is making

'Standard Quantum Limit' Smashed, Could Mean Better Fiber-Optic Comms

January 8, 2013

Communicating with light may soon get a lot easier, hints recent research* from the National Institute of Standards and Technology (NIST) and the University of

NIST Contributes to Top Science Stories of 2012

January 8, 2013

Two media lists of top science stories of 2012 highlight cosmology discoveries that relied on contributions from the National Institute of Standards and

Using Calorimetry to Estimate Absorbed Dose from CT Scans

December 21, 2012

In the United States, about 80 million x-ray computed tomography (CT) scans are made every year – 7 million of them on children – according to the American

Photons Emitted by Quantum Dots Can be Made Indistinguishable Through Quantum Frequency Conversion

December 19, 2012

An international collaboration led by researchers from the NIST Center for Nanoscale Science and Technology has demonstrated the ability to make photons emitted

JILA Physicists Achieve Elusive 'Evaporative Cooling' of Molecules

December 19, 2012

Achieving a goal considered nearly impossible, JILA physicists have chilled a gas of molecules to very low temperatures by adapting the familiar process by

UV Ray of Hope for Safer Drinking Water

December 19, 2012

A group of researchers from PML's Sensor Science Division is part of a project that will have a direct effect on improved safety of the nation's drinking water

For Newly Discovered 'Quantum Spin Liquid', the Beauty Is in Its Simplicity

December 19, 2012

A research team including scientists from the National Institute of Standards and Technology (NIST) has confirmed long-standing suspicions among physicists that

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