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New nanodevice shifts light's color at single-photon level

20-Apr-2016

Converting a single photon from one color, or frequency, to another is an essential tool in quantum communication, which harnesses the subtle correlations between the subatomic properties of photons (particles of light) to securely store and transmit information. Scientists at the National ...

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Exploring nanoscale objects and processes with microwave microscopy

23-Mar-2016

When lots of energy hits an atom, it can knock off electrons, making the atom extremely chemically reactive and initiating further destruction. That's why radiation is so dangerous. It's also why high-resolution imaging techniques that use energetic electron beams and X-rays can alter, even ...

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Fleet and fast

Test for nanomanufacturing quality control

08-Mar-2016

Manufacturers may soon have a speedy and nondestructive way to test a wide array of materials under real-world conditions, thanks to an advance that researchers at the National Institute of Standards and Technology (NIST) have made in roll-to-roll measurements. Roll-to-roll measurements are ...

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Natural air standards support accurate greenhouse gas measurements

23-Feb-2016

When it comes to tallying emissions of greenhouse gases, there is no better substitute than directly measuring the atmosphere. But this important accounting can be obscured, and even confused, if measurements of the air-borne heat-trapping chemicals are inaccurate or can't be compared from one ...

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Simulation of fast, accurate DNA sequencing through graphene nanopore

19-Jan-2016

Researchers at the National Institute of Standards and Technology (NIST) have simulated a new concept for rapid, accurate gene sequencing by pulling a DNA molecule through a tiny, chemically activated hole in graphene--an ultrathin sheet of carbon atoms--and detecting changes in electrical ...

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Portable kit can recover traces of chemical evidence

11-Jan-2016

A chemist at the National Institute of Standards and Technology (NIST) has developed a portable version of his method for recovering trace chemicals such as environmental pollutants and forensic evidence including secret graves and arson fire debris. If successfully commercialized by industry, ...

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New material for detecting photons captures more quantum information

07-Jan-2016

Detecting individual particles of light just got a bit more precise - by 74 picoseconds to be exact - thanks to advances in materials by National Institute of Standards and Technology (NIST) researchers and their colleagues in fabricating superconducting nanowires. Although 74 picoseconds may not ...

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Ringing in a new way to measure and modulate trapped light

24-Dec-2015

Researchers working at the National Institute of Standards and Technology (NIST) have developed a novel way to noninvasively measure and map how and where trapped light vibrates within microscale optical resonators. The new technique not only makes for more accurate measurements but also allows ...

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Measuring nanoscale features with fractions of light

07-Dec-2015

National Institute of Standards and Technology (NIST) researchers are seeing the light, but in an altogether different way. And how they are doing it just might be the semiconductor industry's ticket for extending its use of optical microscopes to measure computer chip features that are ...

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It's a beauty: JILA's quantum crystal is now more valuable

09-Nov-2015

Physicists at JILA have made their "quantum crystal" of ultracold molecules more valuable than ever by packing about five times more molecules into it. The denser crystal will help scientists unlock the secrets of magnets and other, more exotic materials. The crystal is actually a gas of ...

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