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NIST News
CU Boulder Team Tracks Methane Leaks with Lasers
BOULDER, Colo., Jan. 31, 2017 — With a $1.3 million grant from the Department of Energy’s Office of Fossil Energy, researchers from the University of Colorado Boulder, the University of California Davis, the National Institute of Standards and Technology (NIST) and aircraft operator Scientific Aviation will field a ground-based laser system to take a closer look at emissions from natural gas storage facilities across the U.S. Greg Rieker, assistant professor of mechanical engineering at CU Boulder and the
Squeezing Light Cools Microscopic Drum Below Quantum Limit
GAITHERSBURG, Md., Jan. 16, 2017 — Using a special circuit to generate microwave photons stripped of intensity fluctuations, physicists at the National Institute of Standards and Technology (NIST) have cooled a mechanical object to a temperature lower than previously thought...
ASTM Test Will Ensure Precise Optical Tracking of Moving Objects
GAITHERSBURG, Md., Dec. 1, 2016 — A recently approved American Society for Testing and Materials (ASTM) International standard (ASTM E3064-16) provides a standard test method for evaluating the performance of optical tracking systems that track dynamic as well as static objects. The...
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Optical Metrology Breaks Barriers
Jun 29, 2016 — At one time, the diffraction limit, half the wavelength of light, acted as a cutoff to optical measurement. That’s no longer the case. Superresolution techniques now allow optical metrology well below that point in the XY direction, while...
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For Advanced Manufacturing, Success Demands Innovation, Education and Public-Private Partnership
Jan 12, 2016 — Global manufacturing has undergone enormous changes in the past decade as many developing countries have joined the club of tier-one manufacturing nations, a recession stalled demand, and employment fell precipitously in leading economies. Yet...
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Superconductor Ups Single-Photon Detection Accuracy
BOULDER, Colo., Jan. 6, 2016 — Improving on earlier technology, a single-photon detector made of superconducting nanowires offers reduced temporal jitter with less demanding cooling requirements. This greater precision at a higher temperature makes the new detector useful for...
Optical Resonators Probed with Ion Beams
GAITHERSBURG, Md., Dec. 27, 2015 — Ion beams can subtly measure and adjust the performance of microscale optical resonators, a finding that could help refine production of such cavities for applications in sensing and quantum computing. Researchers at the National Institute of...
Computer Chips Measured Using Optical Scatterfield Technique
GAITHERSBURG, Md., Dec. 7, 2015 — Using a microscope that combines standard through-the-lens viewing with scatterfield imaging techniques, researchers have accurately measured patterned features on a silicon wafer 30 times smaller than the wavelength of light. The achievement...
Regulations Aim at Illegal Laser Activity
Oct 6, 2015 — Aircraft illumination by handheld lasers has become a worldwide problem — in the U.S., the FBI offers a $10,000 reward for information leading to a conviction of the crime. Up in the sky, it’s a bird, it’s a plane! No, it’s a...
Theory Describes 'Molecules' of Light
COLLEGE PARK, Md., Sept. 16, 2015 — New theoretical work shows how two photons can be bound together in much the same way that atoms form molecules. If demonstrated experimentally, the phenomenon could be exploited to enhance photon detectors and enable quantum computing. "Lots of...
NIST to Evaluate Argolight Fluorescence Calibration Sources
TALENCE, France, Sept. 4, 2015 — Fluorescence technology from Argolight aimed at improving the reproducibility of optical microscopy measurements is set to undergo evaluation by the U.S. National Institute of Standards and Technology (NIST). NIST will assess whether the technology...
Microscopy Platform Enables Ultrastable Measurements
BOULDER, Colo., July 2, 2015 — Stable enough to track the movements of individual molecules over many hours, a new measurement platform for microscopes could enable a deeper understanding of subcellular processes. The technology was designed to track single base pairs in human...
Plasmonic Modulators Could Work as Submicron Switches
NEW BRUNSWICK, N.J., March 30, 2015 — Nanomechanical plasmonic phase modulators could be used as optical switches with footprints smaller than one square micron, potentially allowing densely packed photonic chips. Researchers at Rutgers University and the National Institute of Standards...
Frequency Combs Enable Remote 3-D Mapping
GAITHERSBURG, Md., Oct. 8, 2014, — A laser-based imaging system can now create high-definition 3-D maps remotely, with the ranging accuracy made possible by frequency combs.
Nanowire Detector Assists Three-Photon Entanglement
WATERLOO, Ontario, Canada, Sept. 15, 2014 — An ultrafast, super-efficient single-photon detector has led to direct entanglement of three photons. Researchers at the University of Waterloo, with help from a team at the National Institute of Standards and Technology (NIST), made the discovery...
Hydrogen Prevents UV Damage in Optical Fiber
GAITHERSBURG, Md., Aug. 12, 2014 — Hydrogen can fortify optical fibers, making them capable of sustained transmission of high-intensity UV light. A team from the National Institute of Standards and Technology created the new fibers, which they said could help reduce errors in logic...
Enhanced CARS Enables High-Speed Imaging of Tissues
GAITHERSBURG, Md., and CLEVELAND, July 23, 2014 — An enhanced spectroscopy technique for analyzing biological cells and tissues delivers stronger signals than those attained through conventional practices. A team from the National Institute of Standards and Technology, in conjunction with the...
Standards Sought for Hyperspectral Imaging
GAITHERSBURG, Md., July 3, 2014 — A team from the National Institute of Standards and Technology has begun gathering data they expect will lead to universal calibration standards for hyperspectral imaging, saying the lack of such standards has impeded this noninvasive imaging...
Metamaterial a One-Way Street for Visible Light
GAITHERSBURG, Md., July 2, 2014 — A structure based on hyperbolic metamaterials allows visible light to pass in only one direction, creating new possibilities for optical circuits and biosensing. Developed at the National Institute of Standards and Technology, the device integrates...
Sub-RF Imaging Advanced by Lasers
GAITHERSBURG, Md., and ANN ARBOR, Mich., June 18, 2014 — Laser-enhanced radio frequency mapping could lead to better assessment of the properties of metasurfaces. Traditional field mapping requires the use of millimeter-scale antennas and dipoles, similar in size to the radio frequencies they measure....
Nanowire Probes Provide Visual Enhancement for AFM
GAITHERSBURG, Md., May 28, 2014 — Nanowire probe tips originally intended for atomic force microscopes in near-field scanning microwave microscopy (NSMM) applications could have another use.
NIST Awards Advanced Manufacturing Grants
GAITHERSBURG, Md., May 9, 2014 — GAITHERSBURG, Md., May 9, 2014 — Two projects aimed at advancing photonics manufacturing have been awarded grants from the National Institute of Standards and Technology (NIST) through its Advanced Manufacturing Technology Consortia (AMTech)...
Quantum Droplets Form in Laser-Shot Semiconductors
BOULDER, Colo., March 3, 2014 — The accidental discovery of a new quasiparticle that behaves like a drop of liquid could provide a better understanding of solid-state devices such as semiconductors and superconductors.
NIST System Helps Police Pinpoint Laser Attacks
GAITHERSBURG, Md., Jan. 16, 2014 — A simple measurement system that characterizes the beams from laser pointers could help law enforcement cope with the growing aviation threat of laser attacks.
Atomic clocks set stability record
GAITHERSBURG, Md. – A pair of experimental atomic clocks based on ytterbium atoms at NIST has set a record for stability. Acting like 21st-century pendulums, the clocks have perfect timing and could potentially swing back and forth with precise ticks for a period...
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May 2024
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