Skip to main content
U.S. flag

An official website of the United States government

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.

Optical / photometry / laser metrology

News and Updates

Projects and Programs

NIST Automated Vehicles Program

Ongoing
Building on a successful first-year Strategic and Emerging Research Initiatives (SERI) project NIST and Autonomous Vehicles (see 2022 NIST AV workshop and

Quantitative Information from Images

Ongoing
Photographs, or optical light images, are spatial records of light reflected or emitted from objects. Thus, they are prospective light measurements. In many

Metrology of Dim Light Sources

Ongoing
Luminescent tags are molecular highlighters. They enable light-based biological assays, visualize biological processes, and are used as diagnostic and

Night Vision Goggle Gain Calibration

Ongoing
NIST cooperates with the three services (Air Force, Navy, and Army) to realize a uniform night vision goggle (NVG) calibration system with low measurement

Publications

Single-photon Sources and Detectors Dictionary

Author(s)
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

Software

JB95 Spectral fitting program

A graphical user interface program, JB95 , based on a Windows 95 © API platform has been written in the C programming language to aid in the analysis of complex

Tools and Instruments

SIRCUS facility and uncertainties

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

Transfer spectrophotometer

A Perkin-Elmer Lambda 1050 spectrophotometer is used to complement the reference reflectance and transmittance instruments. It performs this function by

Awards