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National Institute of Standards and Technology News
Traceable Standards Could Speed Development of Quantum Technologies
GAITHERSBURG, Md., March 26, 2024 — Devices that capture light from quantum dots, like chip-scale lasers and optical amplifiers, have made their way from the lab to the commercial market. The transition for newer quantum dot-based devices has been slower due to the extreme level of accuracy needed in the alignment of the individual dots and the optics that extract and guide the emitted radiation. When localization microscopy of quantum emitters is used to guide lithographic placement of photonic structures, microscopy and
Photonics-Based Oscillator Provides Precise Signals on Compact Chip
GAITHERSBURG, Md., March 15, 2024 — Many technologies — from communications, to radar and sensing, to positioning and navigation — rely on low-noise microwave signals for precise timing and synchronization. Advances in these technologies intensify the demand for stable,...
Imperfections Untether Quantum Sensors from Bulky Optics
GAITHERSBURG, Md., Nov. 30, 2023 — By adding tiny, periodic bumps to a microresonator, researchers were able to convert near-infrared (NIR) laser light into specific desired wavelengths of visible light with high accuracy and efficiency. Developed by the National Institute of...
Integrated Photonic Quantum Sensing Takes Aim at Climate Research
AUSTIN, Texas, March 28, 2023 — A NASA-funded collaboration will focus on advancing quantum sensing technology to enable new understanding of Earth and the effects of climate change. Led by the University of Texas at Austin (UT), Quantum Pathways Institute collaborators are...
3D Printing Tackles One of the Strongest Stainless Steels
GAITHERSBURG, Md., Sept. 26, 2022 — A team from the National Institute of Standards and Technology (NIST), the University of Wisconsin-Madison (UW-Madison), and Argonne National Laboratory have 3D-printed a variety of stainless steel that is favored for its high strength and corrosion...
NIST Awards Nearly $4M Toward Metals-Based Additive Manufacturing
GAITHERSBURG, Md., Aug. 8, 2022 — The National Institute of Standards and Technology (NIST) awarded $3.7 million in grants to address current and future challenges to the implementation of metals-based additive manufacturing through research in metrology. NIST awarded $3.7 million...
NIST Lays Groundwork for Vacuum Measurement Standards
GAITHERSBURG, Md., July 21, 2022 — A quantum-based vacuum gauge system developed by researchers at NIST (National Institute of Standards and Technology) passed what scientists considered to be its first step to become a primary standard. Measurement tests showed the system to be...
Gel Filters Various Wavelengths of Light as its Temperature Changes
GAITHERSBURG, Md., July 18, 2022 — A colloidal gel developed at the National Institute of Standards and Technology (NIST) has demonstrated that it can control structural color and light transmission. Called SeedGel by its creators, the material was originally developed for industrial...
Scattering Phenomenon Could Improve Optical Communications
GAITHERSBURG, Md., April 25, 2022 — A phenomenon observed in a miniature light-scattering system composed of an ultrathin layer of silicon nitride on a chip could lead to improved optical communications and sensors. Researchers at the National Institute of Standards and Technology...
Optical Ruler’s Expanded Frequencies Support Precision Navigation
GAITHERSBURG, Md., March 11, 2022 — Researchers at the National Institute of Standards and Technology (NIST) expanded by nearly two-thirds the frequency range over which a chip-scale device can accurately generate and measure the oscillations of lightwaves. The expanded range of the...
Microresonator Increases Strength of Light-matter Interactions
AMHERST, Mass., Feb. 7, 2022 — Researchers at the University of Massachusetts Amherst, the University of Maryland, and the National Institute of Standards and Technology (NIST) built an on-chip microresonator that strengthens light-matter interactions without losing optical...
Tiny Quantum Effects Promise Big Impact on Future Instruments
Aug 4, 2020 — While the quantum world may seem abstract and remote from day-to-day life, researchers are discovering that quantum effects such as photon entanglement could improve the performance and precision of everyday tools. Advancements in quantum metrology...
Tunable Laser Determines Best UV Wavelengths for Germ Eradication
GAITHERSBURG, Md., July 31, 2020 — While awaiting full access to their labs due to COVID-19 restrictions, scientists at the National Institute of Standards and Technology (NIST) have taken the time to report on research conducted in 2012 on the disinfection of drinking water using...
NIST Proposes New Definition for Optical Watt
GAITHERSBURG, Md., Jan. 9, 2020 — Researchers at the National Institute of Standards and Technology (NIST) seek to develop a more precise definition for the standard unit of light power, the optical watt. Instead of the current definition, which is based on comparisons to electrical...
Fiber Optic-Based Sensor Measures pH Levels in Cell-Growth Environments
GAITHERSBURG, Md., Dec. 16, 2019 — Scientists at the National Institute of Standards and Technology (NIST) are developing a photonic sensor to study tissue growth in the lab. The proof-of-concept sensor uses a light-based signal to measure pH, an important property in cell-growth...
Optical Clock Uses Laser Tweezers to Manipulate Atoms
BOULDER, Colo., Sept. 20, 2019 — JILA physicists have demonstrated a new atomic clock design that uses laser tweezers to trap, control, and isolate atoms. The tweezers are created by an IR laser beam aimed through a microscope. The beam is deflected to create 10 spots of light for...
NIST Study Will Help Industry Understand and Use Laser Welding
GAITHERSBURG, Md., May 2, 2019 — A better understanding of the interaction between laser and metal could give industry more control over laser welding, according to a three-year study in laser welding conducted by the National Institute of Standards and Technology (NIST). The data...
Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication
GAITHERSBURG, Md., March 1, 2019 — A photon pair source that can bridge the visible and telecom bands could be useful for transporting quantum communications over optical fibers. However, the optical components that store and process quantum information typically require...
Photonic Sensors Withstand Large Doses of Radiation
GAITHERSBURG, Md., Nov. 29, 2018 — Researchers at the National Institute of Standards and Technology (NIST) have identified a class of silicon photonic sensors that could be effective in high-radiation environments because of their ability to withstand radiation doses. Results from...
Narrow Spectrum Blue Light Images Progressive Effects of Fire
GAITHERSBURG, Md., July 24, 2018 — A simple method for increasing visibility through clean-burning flames, using ordinary blue LED light, could lead to new opportunities to perform optical metrology in fire research. The method combines narrow-spectrum, blue illumination, and matched...
NYU Wireless, Partners to Develop Communication Technology with NIST Award
WASHINGTON, D.C., Aug. 2, 2017 — The U.S. Commerce Department's National Institute of Standards and Technology (NIST) awarded $2.3 million over three years to the NYU Wireless Research Center at the New York University Tandon School of Engineering, which will work with Italy's...
Improved Photometric Testing for High-Power LEDs
Apr 24, 2015 — The LM-85 approved method for electrical photometric measurement of high-power LEDs harmonizes the methods currently in use and addresses measurement consistency issues. This is the first in a two-part series. The standardized photometric testing...
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...
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May 2024
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