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
The Strategic Defense Initiative (SDI), and subsequently the Ballistic Missile Defense Organization (BMDO) and the Missile Defense Agency (MDA) of the U.S. Department of Defense (DoD), have motivated NIST's work developing calibration methods and standards for space-based sensors used in missile
NIST's wind tunnel has two interchangeable test sections. (See Fig. 1) The upper test section has a uniform cross section; the lower test section has a contracted zone in its center to achieve higher velocities. Upper test section: 2.1 m high × 1.5 m wide × 12 m long; speeds to: 45 m/s (100 mi/hour)
Aperture area measurements are performed at NIST’s aperture area measurement facility, which combines a precise interferometric motion stage with high-resolution optical microscopy. This non-contact method is especially well suited for the measurement of defining apertures with knife edges that are
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
SCATMECH is an object-oriented C++ class library developed to distribute models for light scattering applications. Included in the library are models for
Although significant work has been done to characterize collinear phase matching and to present many of its applications, noncollinear phase matching in both
Beamline 8 is used to study the degradation of surfaces that are irradiated by EUV radiation in the presence of common outgas species. Its multilayer mirror
Beamline 1 separates a swath of light from the synchrotron into two parts. The first part is collected in Beamline 1a by a normal-incidence multilayer mirror
The Synchrotron Ultraviolet Radiation Facility SURF III is operated by the Optical Radiation Group as a stable light source for radiometry and research. SURF