A new generation of ultra-small and high-precision lasers emerges
Ultra fast, robust, stable, and high precision: these are some of the characteristics of a new laser developed by an international research team. View More (2012-04-27)
New
The faster a clock ticks, the more precise it can be. Due to the fact that lightwaves vibrate faster than microwaves, optical clocks can be more precise than the caesium atomic clocks which presently determine time. View More (2012-03-12)
UK scientists develop optimum piezoelectric energy harvesters
Scientists working as part of the Metrology for Energy Harvesting Project have developed a new model to deliver the maximum power output for piezoelectric energy harvesters. View More (2012-03-05)
NIST releases 2 new SRMs for monitoring human exposure to environmental toxins
The National Institute of Standards and Technology (NIST), in collaboration with the Centers for Disease Control and Prevention (CDC), has developed two new Standard Reference Materials (SRMs) for measurements of human exposure to environmental toxins. View More (2012-01-12)
Redefining the kilogram and the ampere
Groundbreaking research by the National Physical Laboratory's (NPL) Quantum Detection Group and an international team of collaborators is underpinning the biggest change in the Système Internationale d'unités (SI Units) since the system began 50 years ago. View More (2011-09-29)
A big step towards the redefinition of the kelvin
Metrologists are measurement artists who are very precise - in the case of the Boltzmann constant up to the sixth decimal place. Whoever is able to determine it very exactly will cause a small revolution in the field of worldwide temperature measurement: The temperature unit will then no longer be based - as hitherto - on a chemico-physical material property, i.e. the triple point of water, but... View More (2011-09-21)
A measurement first: NIST 'noise thermometry' system measures Boltzmann Constant
Researchers at the National Institute of Standards and Technology (NIST) have for the first time used an apparatus that relies on the "noise" of jiggling electrons to make highly accurate measurements of the Boltzmann constant, an important value for many scientific calculations. View More (2011-04-01)
NIST advances single photon management for quantum computers
The quantum computers of tomorrow might use photons, or particles of light, to move around the data they need to make calculations, but photons are tricky to work with. View More (2011-01-21)
NIST ships first programmable AC/DC 10-volt standard
Extending its 26-year tradition of innovative quantum voltage standards, researchers at the National Institute of Standards and Technology (NIST) have begun shipping a new 10-volt standard to users around the world. View More (2010-10-28)
NIST nanofluidic 'multi-tool' separates and sizes nanoparticles
A wrench or a screwdriver of a single size is useful for some jobs, but for a more complicated project, you need a set of tools of different sizes. View More (2010-08-05)
New method developed for synchronizing clocks
Maintaining the correct time is no longer just a matter of keeping your watch wound -- especially when it comes to computers, telecommunications, and other complex systems. View More (2010-07-21)
Time is money: SIM time network has far-reaching benefits
Clocks in the Americas and the Caribbean Islands are now ticking in unison thanks to the work of the Sistema Interamericano de Metrologia (SIM), a regional metrology organization that works to promote accurate measurements throughout the Americas. View More (2010-06-01)
Physicists' findings about helium could lead to more accurate temperature, pressure measurements
In the May 7 edition of Physical Review Letters, a journal of the American Physical Society, an international team led by University of Delaware researchers reports new findings about helium that may lead to more accurate standards for how temperature and pressure are measured. View More (2010-05-18)
NIST detector counts photons with 99 percent efficiency
Scientists at the National Institute of Standards and Technology (NIST) have developed the world's most efficient single photon detector, which is able to count individual particles of light traveling through fiber optic cables with roughly 99 percent efficiency. View More (2010-04-16)
Fluorescence monitoring and effect of photodynamic therapy for port wine stains
It is known that fluctuations in the treatment outcome of photodynamic therapy (PDT) between patients are related to the concentration of photosensitizer in target tissue. View More (2010-03-02)
High-performance microring resonator developed by INRS researchers
A new, more efficient low-cost microring resonator for high speed telecommunications systems has been developed and tested by Professor Roberto Morandotti's INRS team in collaboration with Canadian, American, and Australian researchers. View More (2010-02-10)
Greater certainty in monitoring 3 therapeutic medications is facilitated by new CRMs
To help bring greater certainty to the measurement of medication levels in a patient's bloodstream for three drugs with narrow therapeutic ranges, the U.S. Pharmacopeial Convention (USP) is releasing new certified reference materials (CRMs). View More (2009-11-19)
PTB Terahertz calibration satisfies US laser manufacturer
Terahertz radiation still lies in a metrological no man's land - a metrology gap. The Physikalisch-Technische Bundesanstalt (PTB) can now close this gap. View More (2009-11-06)
Manipulating light on a chip for quantum technologies
A team of physicists and engineers at Bristol University has demonstrated exquisite control of single particles of light - photons - on a silicon chip to make a major advance towards long-sought-after quantum technologies, including super-powerful quantum computers and ultra-precise measurements. View More (2009-06-09)
Memory with a twist: NIST develops a flexible memristor
Electronic memory chips may soon gain the ability to bend and twist as a result of work by engineers at the National Institute of Standards and Technology (NIST). View More (2009-06-03)
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