An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
NIST has continuously positioned itself at the forefront of high-power laser calibrations for over three decades [1]. To better meet needs of the manufacturing
Having such precise models of lunar dust will enable NASA and private space exploration companies to create more accurate simulations of the Moon’s surface.
“Air Power alone does not guarantee America’s security, but I believe it best exploits the nation’s greatest asset – our technical skill” -Gen. Hoyt Vandenberg
Measurement science and standards are needed to support the safe and predictable operation of future automated vehicles (AVs), which have great potential to significantly impact our daily lives and improve the competitiveness of our economy. A FY22 NIST Strategic and Emerging Research Initiatives
Projects: Quantifying Amount of Material through Light Measurement Fluorescence and Luminescence Imaging for Surgical Guidance Fluorescence-guided imaging devices are being used for navigation in minimally invasive surgical procedures to increase a patient’s positive clinical outcomes and shorten
“What is the lowest amount of light that this instrument can detect?” is an important yet unmet measurement challenge. Evaluating the detection performance of complicated imaging instruments is crucial to quantifying substances of interest and the ability to compare results across instruments
Radiometric, radiance temperature, photometric, and color scales have been realized based on the spectral responsivity of standard detectors and radiometers. These reference responsivity scales have been transferred to other NIST calibration facilities to realize and maintain these detector-based
Hristina Georgieva, Thomas Gerrits, Lijun Ma, Riley Dawkins, Marco Lopez, Oliver Slattery, Sven Rodt, Stephan Reitzenstein, Alan Migdall, Stefan Kueck
We present a disseminable single-photon source based on an InGaAs quantum dot in a micro-mesa. This source achieves a maximum photon flux of 2.8 million photons
Applications often expose wormlike micelle solutions to a very wide range of shear and temperature conditions. The two-species model presented in Part I
Brian Simonds, Kyle Rogers, Sven Schulze, David Newell, Gordon Shaw, Paul A. Williams
A primary force standard is implemented to directly realize Planck's constant to the optical Watt by means of radiation pressure at the kilowatt level. The high
This page provides information on firmware/software used at NIST to phase-lock a frequency comb. The firmware/software operates with hardware that was developed
Although significant work has been done to characterize collinear phase matching and to present many of its applications, noncollinear phase matching in both
NOTE: THIS PAGE REFERS TO THE ORIGINAL VERSION OF THIS PROJECT. THE NEWEST VERSION, DATED JANUARY 2015, CAN BE FOUND HERE. This first (and slightly buggy)
A new facility has been commissioned to the establish ultraviolet spectral power responsivity in the air-ultraviolet spectral range between 200 nm and 400 nm
Detector calibrations are a crucial component of the United States industry's extreme ultraviolet (EUV) calibrations needs. Both EUV source manufacturers and
This facility enables the measurement of spectral emittance using the direct method of radiance comparison of the sample with a blackbody reference source
A custom instrument, the Complete Hemispherical infrared Laser-based Reflectometer (CHILR), employs a gold integrating sphere and is used for the measurement of