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Chip-based devices known as frequency combs, which measure the frequency of light waves with unparalleled precision, have revolutionized time keeping, the
In research, sometimes the bumpy path proves to be the best one. By creating tiny, periodic bumps in a miniature racetrack for light, researchers at the
“Only connect” is the most famous line in the British novelist E. M. Forster’s writings. Forster was urging the readers of his book Howard’s End to make
Building on a successful first-year Strategic and Emerging Research Initiatives (SERI) project NIST and Autonomous Vehicles (see 2022 NIST AV workshop and
Photographs, or optical light images, are spatial records of light reflected or emitted from objects. Thus, they are prospective light measurements. In many
NIST cooperates with the three services (Air Force, Navy, and Army) to realize a uniform night vision goggle (NVG) calibration system with low measurement
Ryan Cole, Connor Fredrick, Newton Nguyen, Scott Diddams
We report precision atmospheric spectroscopy of CO2 using a laser heterodyne radiometer (LHR) calibrated with an optical frequency comb. Using the comb
Joshua Bienfang, Thomas Gerrits, Paulina Kuo, Alan Migdall, Sergey Polyakov, Oliver T. Slattery
The intention of this dictionary is to define relevant terms and metrics used in the characterization of single-photon detectors and sources with the goal to
This is the report of a hybrid working group meeting held on April 25, 2023, at the National Institute of Standards and Technology (NIST) in Boulder, CO. The
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
The Synchrotron Ultraviolet Radiation Facility SURF III is operated by the Ultraviolet Radiation Group as a stable light source for radiometry and research
The basic SIRCUS calibration setup is shown at the right. The output from a tunable laser is sent through an intensity stabilizer, then through a 'speckle
A Perkin-Elmer Lambda 1050 spectrophotometer is used to complement the reference reflectance and transmittance instruments. It performs this function by