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Physics

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Etched Quantum Dots Shape Up as Single Photon Emitters, NIST Tests Show

February 22, 2011

Like snowflakes or fingerprints, no two quantum dots are identical. But a new etching method for shaping and positioning these semiconductor nanocrystals might...

Here Comes the Sun: NIST Radio Station WWVH in Hawaii Adds Solar Power

February 15, 2011

The sun is now a significant power source for the National Institute of Standards and Technology (NIST) radio station WWVH, which broadcasts time of day, marine...

two red bars: one horizontal and one vertical. Green cones come out of the middle where they intersect.

Quantum Quirk: JILA Scientists Pack Atoms Together to Prevent Collisions in Atomic Clock

February 3, 2011

BOULDER, Colo.—In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms...

NIST Advances Single Photon Management for Quantum Computers

January 19, 2011

The quantum computers of tomorrow might use photons, or particles of light, to move around the data they need to make calculations, but photons are tricky to...

New Wave: JILA Develops Efficient Source of Terahertz Radiation

January 19, 2011

JILA researchers have developed a laser-based source of terahertz radiation that is unusually efficient and less prone to damage than similar systems. The...

NIST Physicist Joseph Stroscio Named Among 2010 AAAS Fellows

January 19, 2011

Joseph Stroscio, a physicist at the National Institute of Standards and Technology (NIST), has been named a Fellow of the American Association for the...

Stretching, the Truth: JILA Biophysicists Help Unravel DNA Stretching Mystery

January 19, 2011

Using a new experimental test structure, biophysicists at JILA have unraveled part of a 15-year mystery in the mechanics of DNA—just how the molecule manages to...

New Time Widget Puts Accurate Clocks on Web Pages

January 5, 2011

For Web site owners and bloggers, there is a new widget from the National Institute of Standards and Technology (NIST) that will keep your Web pages right on...

NIST Telescope Calibration May Help Explain Mystery of Universe's Expansion

January 5, 2011

Is the expansion of the universe accelerating for some unknown reason? This is one of the mysteries plaguing astrophysics, and somewhere in distant galaxies are...

AFM Positioning: Shining Light on a Needle in a Haystack

November 9, 2010

The researchers characterize their new technique as a neat solution to the "needle in a haystack" problem of nanoscale microscopy, but it's more like the...

NIST Pings Key Material in Sonar, Closes Gap on Structural Mystery

November 9, 2010

Using a neutron beam as a probe, researchers working at the National Institute of Standards and Technology (NIST) have begun to reveal the crystal structure of...

'Sí' on the New SI: NIST Backs Proposal for a Revamped System of Measurement Units

October 26, 2010

Taking the first steps of what would be a major historical advance in the science of measurement, the National Institute of Standards and Technology (NIST) is...

Integrated circuit for NIST's new programmable AC/DC 10-volt standard

NIST Ships First Programmable AC/DC 10-Volt Standard

October 26, 2010

Extending its 26-year tradition of innovative quantum voltage standards, researchers at the National Institute of Standards and Technology (NIST) have begun...

JILA Unveils Improved 'Molecular Fingerprinting' for Trace Gas Detection

October 13, 2010

Scientists at JILA and collaborators have demonstrated an improved laser-based "molecular fingerprinting" technique that picks out traces of key hydrogen...

Popular Science Magazine Names Spielman One of Science's 'Brilliant Ten'

October 13, 2010

The National Institute of Standards and Technology's Ian Spielman is highlighted in the November, 2010, issue of Popular Science, where the magazine's editors...

NIST Mini-Sensor Traces Faint Magnetic Signature of Human Heartbeat

October 13, 2010

Researchers from the National Institute of Standards and Technology (NIST) and the German national metrology institute have used NIST's miniature atom-based...

This Little Light of Mine: Changing the Color of Single Photons Emitted by Quantum Dots

October 13, 2010

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated* for the first time the conversion of near-infrared 1,300 nm...

NIST Clock Experiment Demonstrates That Your Head is Older Than Your Feet

September 28, 2010

Scientists have long known that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that previously has been measured...

NIST Pair of Aluminum Atomic Clocks Reveal Einstein's Relativity at a Personal Scale

September 23, 2010

BOULDER, Colo. – Scientists have known for decades that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that...

Still from video clip. The shows the development of the soliton over the course of about 2.7 nanoseconds.

New Wave: Spin Soliton Could Be a Hit in Cell Phone Communication

September 14, 2010

Researchers at the National Institute of Standards and Technology (NIST) have found theoretical evidence of a new way to generate the high-frequency waves used...

NIST Researchers Hear Puzzling New Physics from Graphene Quartet's Quantum Harmonies

September 8, 2010

GAITHERSBURG, Md. – Using a one-of-a-kind instrument designed and built at the National Institute of Standards and Technology (NIST), an international team of...

Yikes! NIST Sensor Measures Yoctonewton Forces Fast

August 31, 2010

Physicists at the National Institute of Standards and Technology (NIST) have used a small crystal of ions (electrically charged atoms) to detect forces at the...

NIST Researchers Create 'Quantum Cats' Made of Light

August 31, 2010

Researchers at the National Institute of Standards and Technology (NIST) have created "quantum cats" made of photons (particles of light), boosting prospects...

Glasperlenspiel: NIST Scientists Propose New Test for Gravity

August 31, 2010

A new experiment proposed by physicists at the National Institute of Standards and Technology (NIST) may allow researchers to test the effects of gravity with...

New Material May Reveal Inner Workings of Hi-temp Superconductors

August 31, 2010

Measurements taken at the National Institute of Standards and Technology (NIST) may help physicists develop a clearer understanding of high-temperature...

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