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Microcombs – chip-scale devices that generate and measure frequencies of light with exquisite accuracy – have transformed timekeeping and boosted optical
For several years, a team of researchers from the National Institute of Standards and Technology (NIST) has been building a robotically operated moonlight
Frequency combs — specialized lasers that act like rulers to measure light — are now being brought down to a low-power, chip-scale form. NIST researchers David
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
Radiometric, radiance temperature, photometric, and color scales have been realized based on the spectral responsivity of standard detectors and radiometers
B. Carol Johnson, Giuseppe Zibordi, Ewa Kwiatkowska, Kenneth Voss, Frederic Melin, David Antoine, Menghua Wang, Shuguo Chen, Constant Mazeran, Brian Barnes, Jee-Eun Min
System Vicarious Calibration (SVC) is the technique that maximizes the accuracy of satellite ocean colour data products by minimizing the impact of inaccuracies
This is a report for Inter-agency agreement 693KA9-18-N-00023 "Maximum Luminous Intensity for LED Signaling in an Airport Environment" by Federal Aviation
This is an item for the CRC Handbook of Chemistry and Physics (105th ed.), giving values calculated from the IAPWS formulation for the refractive index.
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
This project allows investigators to build their own data acquisition instruments to collect and statistically process data in real time, then send the results
The MIST program has been developed to provide users with a general application to model an integrated scattering system. The program performs an integration of
The Synchrotron Ultraviolet Radiation Facility SURF III is operated by the Optical Radiation Group as a stable light source for radiometry and research. SURF
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