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National Institute of Standards and Technology News
Quantum Code Key Produced at More Than 4 Mb/s
May 1, 2006 — A team of researchers at the National Institute of Standards and Technology in Gaithersburg, Md., has developed a quantum key distribution system that generates code keys over a 1-km length of SMF-28 optical fiber from Corning Inc. in New York at 4.14 Mb/s and over a 4-km span of the fiber at nearly 1 Mb/s. The group presented a report on its work at the SPIE Defense & Security Symposium in Orlando, Fla., on April 18. The cryptography system relies on the no-cloning theorem in quantum...
Optical Lattice Clock Employs Ytterbium-174
Apr 1, 2006 — An optical lattice atomic clock built by a collaboration of researchers from the National Institute of Standards and Technology in Boulder, Colo., and from the Siberian branch of the Russian Academy of Science’s Institute of Laser Physics in...
Distances of Millimeters Measured with Picometer Accuracy
Feb 1, 2006 — For those who need a ruler with exceedingly fine gradation, physicist John R. Lawall of the National Institute of Standards and Technology (NIST) in Gaithersburg, Md., has the tool for you. He has developed a technique that can measure distances of...
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...
'Watt Method' May Ease Effort to Redefine the Kilogram
Sep 23, 2005 — GAITHERSBURG, Md., Sept. 23 -- A leading experimental method for defining the kilogram in terms of properties of nature is now more accurate than ever, scientists at the Commerce Department’s National Institute of Standards and Technology (NIST)...
White-Light Interferometry Exhibits Error
Aug 1, 2005 — A research team at the National Institute of Standards and Technology in Gaithersburg, Md., has determined that measurements of surface roughness taken using white-light interferometry can differ substantially from those taken using phase-shifting...
Photon-Number-Resolving Sensor Displays High Efficiency
Jul 1, 2005 — A quantum calorimetric sensor developed at the National Institute of Standards and Technology in Boulder, Colo., displays photon-number-resolving operation at 1550 nm with an efficiency of 88.6 percent. The scientists behind the work suggest that...
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...
Chip-Scale Atomic Clock Refined
Mar 1, 2005 — At the National Institute of Standards and Technology in Boulder, Colo., researchers have developed a 12-mm3 atomic clock based on the D1 line in rubidium-87 that may find applications in mobile communications and navigation systems. The instrument,...
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...
Measuring High-Power Diode Laser Efficiency
Jan 1, 2005 — The National Institute of Standards and Technology (NIST) has been tasked by the Defense Advanced Research Projects Agency with providing wall-plug efficiency and spectral measurements of high-power, high-efficiency laser diodes and arrays as part...
Magnetic System Images Audiotape
Dec 1, 2004 — Physicist David P. Pappas, project leader of magnetic recording measurements at the National Institute of Standards and Technology's Electromagnetics Div. in Boulder, Colo., thinks that there's more than one way to spot a problem on an audio...
Photonics Firms Benefit from ATP Awards
Nov 1, 2004 — The Advanced Technology Program (ATP) of the National Institute of Standards and Technology recently announced 32 awards to 43 companies. Selected from 870 proposals, several of which involve research in photonics and related technologies, the...
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...
Grants Boost Photonics, Nano Projects
Sep 30, 2004 — GAITHERSBURG, Md., Sept. 30 -- Several photonics- and nanotechnology-related companies are recipients of grants from The US Commerce Department's Advanced Technology Program (ATP) for research on highly innovative industrial technologies. (See...
Quantum Dot Awarded NIST Grant
Sep 29, 2004 — HAYWARD, Calif., Sept. 29 --Quantum Dot Corp. (QDC) announced it was awarded a $2 million grant from the National Institute of Standards and Technology (NIST), under its Advanced Technology Program, to develop clinical-grade quantum dots with...
Entanglement Protocol May Improve Synchronization of Atomic Clocks
Jul 1, 2004 — In the June 4 issue of Science, physicists at the National Institute of Standards and Technology in Boulder, Colo., report an entanglement setup that promises applications in atomic clocks. The method combines approaches from precision spectroscopy...
Exploiting the Weird Quantum Behavior of Atoms
Jun 18, 2004 — GAITHERSBURG, Md., June 18 -- Physicists at the Commerce Department’s National Institute of Standards and Technology (NIST) have demonstrated "teleportation" by transferring key properties of one atom to another atom without using any physical link....
Precision Photonics Awarded Grant
Jun 11, 2004 — BOULDER, Colo., June 11 -- Precision Photonics Corp., a manufacturer of ultraprecise optics and laser-based instruments, announced it has received a $2 million grant from the National Institute of Standards and Technology (NIST) to develop...
ORA Receives $1.7 Million NIST Award
May 11, 2004 — PASADENA, Calif., May 11 -- Optical software developer Optical Research Associates (ORA), of Pasadena, Calif., has received a $1.7 million Advanced Technology Program (ATP) award from the National Institute of Standards and Technology (NIST) for the...
Quantum Keys Set Encryption Record
May 6, 2004 — GAITHERSBURG, Md., May 6 -- The fastest known cryptographic system based on transmission of single photons -- the smallest pulses of light -- has been demonstrated by a team at the Commerce Department’s National Institute of Standards and Technology...
'Rainbow' Light Source Developed
Apr 29, 2004 — GAITHERSBURG, Md., April 29 -- The National Institute of Standards and Technology (NIST) has developed a "rainbow source" that can be tuned across the entire visible light spectrum, from red to blue light. This unique source exploits recent...
Daily News Briefs
Apr 27, 2004 — Anthony Johnson has been appointed an independent director of Essex Corp.'s board of directors. Johnson is director of the Center for Advanced Studies in Photonics Research and a professor of physics and of computer science and electrical...
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April 2024
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