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NIST News
Metal Fatigue Revealed by New X-Ray Microbeam
GAITHERSBURG, Md., Aug. 10, 2006 -- Intense x-ray microbeams -- 100 times thinner than a human hair -- probing a piece of distressed metal have revealed previously unknown variations in stresses, a result that could have implications for solving problems in sheet metal forming and controlling metal fatigue, responsible for the failure of many structural materials. Answering the question of what happens to metals under stress and strain hasn't been as easy as one might think. A research team from the National Institute of...
Nano-Etching Makes LEDs 7X Brighter
GAITHERSBURG, Md., July 24, 2006 -- Researchers at the National Institute of Standards and Technology (NIST) have made semiconductor LEDs more than seven times brighter by etching nanoscale grooves in a surrounding cavity to guide scattered light in one direction. The novel...
Mercury Atomic Clock Keeps Time with Record Accuracy
BOULDER, Colo., July 20, 2006 -- An experimental optical clock that is based on a single mercury atom is more stable and accurate than the national standard atomic clock that uses a cloud of cesium atoms and would take about 400 million years to gain or lose one second, according...
New Method Detects Silicon Thin-Film Defects
GAITHERSBURG, Md., July 18, 2006 -- High-performance strained-silicon semiconductor devices have advantages over other types of semiconductors, and also a big problem: the manufacturing process can cause hard-to-find crystal defects that can bunch together and degrade the wafer's...
New Ion Trap May Lead to Working Quantum Computer
GAITHERSBURG, Md., July 11, 2006 -- Physicists have built a novel electromagnetic trap for ions that they said could be easily mass produced, potentially leading to ultrafast quantum computers large enough for practical use in complicated tasks such as breaking data encryption...
Nanowires Grown to Power Tiny Lasers, LEDs
GAITHERSBURG, Md., May 30, 2006 -- The nano world is getting brighter, thanks to newly "grown" nanowires made of semiconductor materials that are being used to make prototype lasers and LEDs with emission apertures roughly 100 nanometers in diameter, or about 50 times narrower...
Laser Trapping of Erbium May Lead to Novel Devices
GAITHERSBURG, Md., May 8, 2006 -- Physicists at the National Institute of Standards and Technology (NIST) have used lasers to cool and trap erbium atoms, a "rare earth" heavy metal with unusual optical, electronic and magnetic properties. The element has such a complex energy...
Optical 'Comb' Measures Finer Frequencies
Apr 4, 2006 — BOULDER, Colo., April 4, 2006 -- A highly sensitive tool for real-time analysis of the quantity, structure and dynamics of a variety of atoms and molecules simultaneously — even in miniscule gas samples — was developed at JILA, the research lab...
NIST Atomic Clock Uses Yb 'Pancakes'
Mar 27, 2006 — GAITHERSBURG, Md., March 27, 2006 -- Scientists at the National Institute of Standards and Technology (NIST) working with Russian colleagues said they have significantly improved the design of optical atomic clocks to become more stable and accurate...
NIST Atomic Clock Uses Ytterbium 'Pancakes'
Mar 27, 2006 — GAITHERSBURG, Md., March 27, 2006 -- Scientists at the National Institute of Standards and Technology (NIST) working with Russian colleagues said they have significantly improved the design of optical atomic clocks to become more stable and accurate...
NIST to Launch New Nanotech Center
Mar 24, 2006 — GAITHERSBURG, Md., March 24, 2006 -- A state-of-the-art center for collaborative nanotechnology research will be set up at a facility of the National Institute of Standards and Technology (NIST), it was announced this week. US Secretary of...
BBN Technologies Demos Photon Detector
Mar 16, 2006 — CAMBRIDGE, Mass., March 16, 2006 -- A single-photon detector designed for standard telecommunications fibers that is 20 times faster than today's benchmark device -- and could become even faster -- was recently demonstrated by BBN Technologies, a...
SPECTRAL LIBRARY
Mar 1, 2006 — The National Institute of Standards and Technology has released an upgrade to the NIST/EPA/NIH Mass Spectral Library, a database of “fingerprints” used to identify chemical compounds with mass spectrometry. Data version NIST 05 adds approximately...
NIST Polynanotubes Could Become World's Smallest Hypodermic Needles
Feb 3, 2006 — GAITHERSBURG, Md., Feb. 3, 2006 -- Scientists at the National Institute of Standards and Technology (NIST) have created unusually long polymer nanotubes that could one day be used as incredibly tiny hypodermic needles, capable of injecting molecules...
Lasers Reveal How Atoms Collide
Nov 2, 2005 — BOULDER, Nov. 2 -- Using laser pulses that last just 70 femtoseconds (quadrillionths of a second), physicists have observed in greater detail than ever before what happens when atoms collide. The experiments at JILA, a joint institute of the...
Tandem Ions May Create Better Atomic Clocks
Aug 10, 2005 — Boulder, Colo., Aug. 10 -- Physicists at the Commerce Department’s National Institute of Standards and Technology (NIST) have used the natural oscillations of two different types of charged atoms, or ions, confined together in a single trap, to...
Photon Detectors Have Record Efficiency
Jun 3, 2005 — GAITHERSBURG, Md., June 3 -- Sensors that detect and count single photons, the smallest quantities of light, with 88 percent efficiency have been demonstrated by physicists at the National Institute of Standards and Technology (NIST). They said this...
X-Rays Shine Light on HID Lamps
Apr 25, 2005 — GAITHERSBURG, Md., April 25 -- An x-ray technique developed by physicists at the National Institute of Standards and Technology (NIST) is helping to improve the design and energy efficiency of the bright white lights often used to illuminate...
NIST, Utah State to Make Optical Sensors
Mar 25, 2005 — WASHINGTON, March 25 -- The National Institute for Standards and Technology (NIST) and Utah State University signed a partnership agreement to develop and calibrate optical sensors for defense, homeland security, weather prediction and climate...
NIST, Utah State to Make Optical Sensors
Mar 25, 2005 — WASHINGTON, March 25 -- The National Institute for Standards and Technology (NIST) and Utah State University signed a partnership agreement to develop and calibrate optical sensors for defense, homeland security, weather prediction and climate...
NIST Urges Caution in Switch to VOIP
Feb 2, 2005 — GAITHERSBURG, Md., Feb. 2 -- Federal agencies and other organizations that are considering switching their telephone systems to Voice Over Internet Protocol (VOIP) should proceed with caution and carefully consider the security risks, says a recent...
Tiny, Atom-based Detector Senses Weak Magnetic Fields
Jan 5, 2005 — GAITHERSBURG, Md., Jan. 5 -- A low-power magnetic sensor about the size of a grain of rice that can detect magnetic field changes as small as 50 picoteslas -- a million times weaker than the Earth's magnetic field -- has been demonstrated by...
Daily News Briefs
Oct 15, 2004 — Aculight Corp., a Bethell, Wash., developer of laser technologies, has placed 46th in the Technology Fast 50 Program for Washington State, a ranking of the 50 fastest-growing technology companies in the area by Deloitte & Touche LLP. Rankings...
Solitons May Slowly Speed Up Signals
Oct 14, 2004 — GAITHERSBURG, Md., Oct. 14 -- Light waves that travel very slowly without distortion could eventually help simplify and reduce the cost of high-speed optical communications. Light is so fast, it takes less than two seconds to travel from the Earth...
MicroStrain Joins Sensor Project
Oct 12, 2004 — WILLISTON, Vt., Oct. 12 -- MicroStrain Inc., a maker of sensors for applications including advanced automotive controls, health monitoring and inspection of machines and buildings, announced it will join a project sponsored by Caterpillar Inc. to...
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May 2024
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