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National Institute of Standards and Technology Features
Tiny Quantum Effects Promise Big Impact on Future Instruments
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...
Photonics Spectra, September 2020
Improved Photometric Testing for High-Power LEDs
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...
Photonics Spectra, May 2015
Defense, Security Show Targets Baltimore
SPIE moves its DSS conference and trade show to the Charm City to maximize exposure to governmental agencies, military institutions and research organizations. At the mention of Baltimore, certain things come to mind: crab cakes, the Orioles, Camden...
Photonics Spectra, April 2012
NIST Develops Calibration Tools for Fluorescent Instruments
Scientists at the National Institute of Standards and Technology (NIST) in Gaithersburg, Md., have developed two new standard reference materials to help correct and validate the performance of analytical instruments that detect, measure and...
Photonics Spectra, August 2007
Frequency Comb Improves Cavity Ringdown Spectroscopy
Spectral discrimination reveals band structures to identify analytes, but accessing spectral information has been challenging, as spectroscopists have been forced to balance the parameters of spectral range, sensitivity, resolution and acquisition...
Photonics Spectra, June 2006
Measuring High-Power Diode Laser Efficiency
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...
Photonics Spectra, January 2005
(6 results found)
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